[INFO] updating cached repository SteveBirtles/rust_for_polyglots
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SteveBirtles/rust_for_polyglots
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SteveBirtles/rust_for_polyglots" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SteveBirtles/rust_for_polyglots"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SteveBirtles/rust_for_polyglots'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SteveBirtles/rust_for_polyglots" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SteveBirtles/rust_for_polyglots"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SteveBirtles/rust_for_polyglots'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1dfc720c5b211fb49bc60e106ab8daace0a10d11
[INFO] sha for GitHub repo SteveBirtles/rust_for_polyglots: 1dfc720c5b211fb49bc60e106ab8daace0a10d11
[INFO] validating manifest of SteveBirtles/rust_for_polyglots on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of SteveBirtles/rust_for_polyglots on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing SteveBirtles/rust_for_polyglots
[INFO] finished frobbing SteveBirtles/rust_for_polyglots
[INFO] frobbed toml for SteveBirtles/rust_for_polyglots written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/SteveBirtles/rust_for_polyglots/Cargo.toml
[INFO] started frobbing SteveBirtles/rust_for_polyglots
[INFO] finished frobbing SteveBirtles/rust_for_polyglots
[INFO] frobbed toml for SteveBirtles/rust_for_polyglots written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SteveBirtles/rust_for_polyglots/Cargo.toml
[INFO] crate SteveBirtles/rust_for_polyglots has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing SteveBirtles/rust_for_polyglots against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SteveBirtles/rust_for_polyglots:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] c447b8af09ce4423ce02adcf4e12efbe7b9b9afad6a18ab3aa21fee80cfa573c
[INFO] running `"docker" "start" "-a" "c447b8af09ce4423ce02adcf4e12efbe7b9b9afad6a18ab3aa21fee80cfa573c"`
[INFO] [stderr]    Compiling rust_for_polyglots v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "c447b8af09ce4423ce02adcf4e12efbe7b9b9afad6a18ab3aa21fee80cfa573c"`
[INFO] running `"docker" "rm" "-f" "c447b8af09ce4423ce02adcf4e12efbe7b9b9afad6a18ab3aa21fee80cfa573c"`
[INFO] [stdout] c447b8af09ce4423ce02adcf4e12efbe7b9b9afad6a18ab3aa21fee80cfa573c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SteveBirtles/rust_for_polyglots:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 25e6b263509d7488a87ec08c9e1ba99d8af34fee52aeb11e2c5d3c86cc7dbbb2
[INFO] running `"docker" "start" "-a" "25e6b263509d7488a87ec08c9e1ba99d8af34fee52aeb11e2c5d3c86cc7dbbb2"`
[INFO] [stderr]    Compiling rust_for_polyglots v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "25e6b263509d7488a87ec08c9e1ba99d8af34fee52aeb11e2c5d3c86cc7dbbb2"`
[INFO] running `"docker" "rm" "-f" "25e6b263509d7488a87ec08c9e1ba99d8af34fee52aeb11e2c5d3c86cc7dbbb2"`
[INFO] [stdout] 25e6b263509d7488a87ec08c9e1ba99d8af34fee52aeb11e2c5d3c86cc7dbbb2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/SteveBirtles/rust_for_polyglots:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 08f319a8ae6d020edacc3a59b50de6d5b983733b20c77643ca56baf9ddf9fcd4
[INFO] running `"docker" "start" "-a" "08f319a8ae6d020edacc3a59b50de6d5b983733b20c77643ca56baf9ddf9fcd4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_for_polyglots-6fd201985c33b1f3
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "08f319a8ae6d020edacc3a59b50de6d5b983733b20c77643ca56baf9ddf9fcd4"`
[INFO] running `"docker" "rm" "-f" "08f319a8ae6d020edacc3a59b50de6d5b983733b20c77643ca56baf9ddf9fcd4"`
[INFO] [stdout] 08f319a8ae6d020edacc3a59b50de6d5b983733b20c77643ca56baf9ddf9fcd4