seeing this one a clean master checkout ```$ pants goals Bui

Question

seeing this one a clean master checkout ```$ pants goals Building native engine error invalid channel name toolchain in Users yic workspace pants 2 rust toolchain info caused by invalid toolchain name toolchain Failed to build native engine ``` any advice

hundreds-father-404 · Answer

your rustup is out of date Try `rustup update`

wide-energy-11069 · Answer

oh so pants no longer bootstraps one there

hundreds-father-404 · Answer

No we don t which simplified a lot of our setup We ve been trying to chip away at all our custom tooling

wide-energy-11069 · Answer

ok still seeing the same issue after ```$ rustup update info syncing channel updates for stable x86 64 apple darwin sdfinfo latest update on 2021 03 25 rust version 1 51 0 2fd73fabe 2021 03 23 ^R sdinfo downloading component rustc ^R Total 56 6 MiB Speed 10 6 MiB s info downloading component rust std Total 23 6 MiB Speed 10 7 MiB s info downloading component cargo info downloading component rust docs Total 15 0 MiB Speed 10 1 MiB s info downloading component rust src info removing component rustc info removing component rust std info removing component cargo info removing component rust docs info removing component rust src info installing component rustc info installing component rust std info installing component cargo info installing component rust docs info installing component rust src info checking for self updates info downloading self update stable x86 64 apple darwin updated rustc 1 51 0 2fd73fabe 2021 03 23 ```

average-vr-56795 · Answer

`rustup update self`

average-vr-56795 · Answer

Oops `rustup self update`

average-vr-56795 · Answer

That way around smile

wide-energy-11069 · Answer

``` tw mbp yic pants 2 master $ rustup self update info checking for self updates info downloading self update info rustup updated successfully to 1 23 1 tw mbp yic pants 2 master $ tw mbp yic pants 2 master $ tw mbp yic pants 2 master $ rustup update info syncing channel updates for stable x86 64 apple darwin info checking for self updates info downloading self update stable x86 64 apple darwin unchanged rustc 1 51 0 2fd73fabe 2021 03 23 tw mbp yic pants 2 master $ tw mbp yic pants 2 master $ pants goals Building native engine error invalid channel name toolchain in Users yic workspace pants 2 rust toolchain info caused by invalid toolchain name toolchain Failed to build native engine ```

wide-energy-11069 · Answer

does this matter ```$ env | grep RUS RUSTUP HOME= Users yic cache pants rust rustup```

wide-energy-11069 · Answer

unsetting doesn t help either

hundreds-father-404 · Answer

what does `which a rustup` say FYI ` cargo` is the script that we use which invokes your global `cargo` binary in `bootstrap code sh`

average-vr-56795 · Answer

I d probably `rm rf ~ cache pants rust`

wide-energy-11069 · Answer

haha not so fast we still need to for 1 25 x twtr occasionally

wide-energy-11069 · Answer

``` tw mbp yic pants 2 master $ which a rustup Users yic cargo bin rustup tw mbp yic pants 2 master $ which a cargo Users yic cargo bin cargo tw mbp yic pants 2 master $ Users yic cargo bin rustup version rustup 1 7 0 813f7b7a8 2017 10 30 tw mbp yic pants 2 master $ Users yic cargo bin rustup self update info checking for self updates info downloading self update info rustup updated successfully to 1 23 1 tw mbp yic pants 2 master $ Users yic cargo bin rustup version rustup 1 7 0 813f7b7a8 2017 10 30 ```

wide-energy-11069 · Answer

this is weird it says it s updated to 1 23 1 then version shows again it s on 1 7 0

hundreds-father-404 · Answer

Weird Maybe reinstall it <https rustup rs>

average-vr-56795 · Answer

``` rustup version rustup 1 23 1 3df2264a9 2020 11 30 ```

wide-energy-11069 · Answer

ok reinstall did the trick thanks folks

wide-energy-11069 · Answer

also been at ``` Compiling testutil v0 0 1 Users yic workspace pants 2 src rust engine testutil Compiling mock v0 0 1 Users yic workspace pants 2 src rust engine testutil mock Compiling process execution v0 0 1 Users yic workspace pants 2 src rust engine process execution Finished dev unoptimized + debuginfo target s in 3m 56s 14 54 35 02 INFO initializing scheduler 14 56 05 11 INFO Long running tasks 88 23s Find interpreter for constraints CPython==3 7 4 14 56 35 14 INFO Long running tasks 118 27s Find interpreter for constraints CPython==3 7 4 15 10 36 44 INFO Long running tasks 959 57s Find interpreter for constraints CPython==3 7 4 15 11 06 45 INFO Long running tasks 989 58s Find interpreter for constraints CPython==3 7 4``` for a while let me know if i need to kill it python3 7 has been 100

hundreds-father-404 · Answer

Uh that is not expected If you d be willing it would be helpful if you could do ` no process execution local cleanup` find the tmpdir for that process and run it s ` run sh` to see if it hangs We d love to get a hold of that PEX You can `ctrl c`

wide-energy-11069 · Answer

``` 502 40173 40168 0 3 17PM 1 22 53 Users yic cache pants pants dev deps Darwin py37 venv bin python3 7 private var folders yt pxdd3gp96530xh 116kskmkh0000gp T process execution4GBs1T tmp tmpa20ikulx c import hashlib os sys 012 012python = os path realpath sys executable 012print python 012 012hasher = hashlib sha256 012with open python rb as fp 012 for chunk in iter lambda fp read 8192 b 012 hasher update chunk 012print hasher hexdigest 012``` ```$ cd private var folders yt pxdd3gp96530xh 116kskmkh0000gp T process execution4GBs1T $ find | grep run sh lt nothing gt ``` is this what you mean

hundreds-father-404 · Answer

I mean <https www pantsbuild org v2 5 docs troubleshooting debug tip inspect the chroot with no process execution local cleanup>

wide-energy-11069 · Answer

oh ok in that case I haven t hit that point yet ```$ pants no process execution local cleanup goals 15 17 57 43 INFO initializing scheduler 15 25 28 08 INFO Long running tasks 449 97s Find interpreter for constraints CPython==3 7 4 15 25 58 10 INFO Long running tasks 479 98s Find interpreter for constraints CPython==3 7 4```

wide-energy-11069 · Answer

based on the process it wants to do some hashing ``` 502 40173 40168 0 3 17PM 9 50 16 Users yic cache pants pants dev deps Darwin py37 venv bin python3 7 private var folders yt pxdd3gp96530xh 116kskmkh0000gp T process execution4GBs1T tmp tmpa20ikulx c import hashlib os sys 012 012python = os path realpath sys executable 012print python 012 012hasher = hashlib sha256 012with open python rb as fp 012 for chunk in iter lambda fp read 8192 b 012 hasher update chunk 012print hasher hexdigest 012```

hundreds-father-404 · Answer

Hm it should have dumped the log path at the very beginning of starting the process you don t see that higher up thinking face

wide-energy-11069 · Answer

full ```$ pants no process execution local cleanup goals 15 17 57 43 INFO initializing scheduler 15 19 27 54 INFO Long running tasks 89 43s Find interpreter for constraints CPython==3 7 4 15 19 57 57 INFO Long running tasks 119 45s Find interpreter for constraints CPython==3 7 4 15 20 27 60 INFO Long running tasks 149 48s Find interpreter for constraints CPython==3 7 4 15 20 57 64 INFO Long running tasks 179 52s Find interpreter for constraints CPython==3 7 4 15 21 27 69 INFO Long running tasks 209 57s Find interpreter for constraints CPython==3 7 4 15 21 57 75 INFO Long running tasks 239 64s Find interpreter for constraints CPython==3 7 4 15 22 27 80 INFO Long running tasks 269 69s Find interpreter for constraints CPython==3 7 4 15 22 57 80 INFO Long running tasks 299 69s Find interpreter for constraints CPython==3 7 4 15 23 27 81 INFO Long running tasks 329 70s Find interpreter for constraints CPython==3 7 4 15 23 57 91 INFO Long running tasks 359 80s Find interpreter for constraints CPython==3 7 4 15 24 27 99 INFO Long running tasks 389 88s Find interpreter for constraints CPython==3 7 4 15 24 58 07 INFO Long running tasks 419 95s Find interpreter for constraints CPython==3 7 4 15 25 28 08 INFO Long running tasks 449 97s Find interpreter for constraints CPython==3 7 4 15 25 58 10 INFO Long running tasks 479 98s Find interpreter for constraints CPython==3 7 4 15 26 28 18 INFO Long running tasks 510 07s Find interpreter for constraints CPython==3 7 4 15 26 58 21 INFO Long running tasks 540 10s Find interpreter for constraints CPython==3 7 4 15 27 28 31 INFO Long running tasks 570 19s Find interpreter for constraints CPython==3 7 4 15 27 58 39 INFO Long running tasks 600 28s Find interpreter for constraints CPython==3 7 4 15 28 28 47 INFO Long running tasks 630 36s Find interpreter for constraints CPython==3 7 4```

hundreds-father-404 · Answer

Oh try ` no pantsd` maybe

wide-energy-11069 · Answer

ok this is the stacktrace when I killed it in case that s useful ```Engine traceback in select in pants init plugin resolver resolve plugins CPython==3 7 4 in pants backend python util rules pex create venv pex pants plugins pex in pants backend python util rules pex build pex pants plugins pex in pants backend python util rules pex find interpreter CPython==3 7 4 in pants engine process fallible to exec result or raise Traceback most recent call last File Users yic workspace pants 2 src python pants engine process py line 255 in fallible to exec result or raise description value pants engine process ProcessExecutionFailure Process Find interpreter for constraints CPython==3 7 4 failed with exit code 241 stdout stderr Traceback most recent call last File Users yic workspace pants 2 src python pants bin daemon pants runner py line 125 in single daemonized run scheduler options initializer = self core prepare options bootstrapper complete env File Users yic workspace pants 2 src python pants pantsd pants daemon core py line 129 in prepare self initialize options fingerprint options bootstrapper env File Users yic workspace pants 2 src python pants pantsd pants daemon core py line 104 in initialize raise e File Users yic workspace pants 2 src python pants pantsd pants daemon core py line 90 in initialize options bootstrapper env raise =True File Users yic workspace pants 2 src python pants init options initializer py line 113 in build config and options self plugin resolver options bootstrapper env File Users yic workspace pants 2 src python pants init options initializer py line 44 in initialize build configuration working set = plugin resolver resolve options bootstrapper env File Users yic workspace pants 2 src python pants init plugin resolver py line 114 in resolve for resolved plugin location in self resolve plugins options bootstrapper env File Users yic workspace pants 2 src python pants init plugin resolver py line 137 in resolve plugins session product request ResolvedPluginDistributions self interpreter constraints File Users yic workspace pants 2 src python pants engine internals scheduler py line 536 in product request self raise on error t for t in throws File Users yic workspace pants 2 src python pants engine internals scheduler py line 476 in raise on error wrapped exceptions=tuple t exc for t in throws pants engine internals scheduler ExecutionError 1 Exception encountered Engine traceback in select in pants init plugin resolver resolve plugins CPython==3 7 4 in pants backend python util rules pex create venv pex pants plugins pex in pants backend python util rules pex build pex pants plugins pex in pants backend python util rules pex find interpreter CPython==3 7 4 in pants engine process fallible to exec result or raise Traceback most recent call last File Users yic workspace pants 2 src python pants engine process py line 255 in fallible to exec result or raise description value pants engine process ProcessExecutionFailure Process Find interpreter for constraints CPython==3 7 4 failed with exit code 241 stdout stderr ```

hundreds-father-404 · Answer

Btw the process shouldn t take more than 0 5s maybe 3s in a weird case

wide-energy-11069 · Answer

no dice yeah will need to debug this a bit purely from the process it wants to do ```import hashlib os sys python = os path realpath sys executable print python hasher = hashlib sha256 with open python rb as fp for chunk in iter lambda fp read 8192 b hasher update chunk print hasher hexdigest ``` let me see it s because of symlink cycles and what not

happy-kitchen-89482 · Answer

< wide energy 11069> any luck

wide-energy-11069 · Answer

still working on it but put up the diff <https pantsbuild slack com archives G0107QFGGAW p1618014341018400 thread ts=1617988608 015700 amp cid=G0107QFGGAW>

wide-energy-11069 · Answer

linux box works so i ll just go with that