[INFO] updating cached repository https://github.com/TakumiKaribe/rucc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2bae43ba659087ac97af170985e1ac0e172a7c8b
[INFO] testing TakumiKaribe/rucc against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FTakumiKaribe%2Frucc" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TakumiKaribe/rucc on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/TakumiKaribe/rucc
[INFO] finished tweaking git repo https://github.com/TakumiKaribe/rucc
[INFO] tweaked toml for git repo https://github.com/TakumiKaribe/rucc written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/TakumiKaribe/rucc already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] c5dbd54b6083bfa0020aa1bdf9fde0dd9c78fdd08c15a68b3c3042da412665b8
[INFO] running `"docker" "start" "-a" "c5dbd54b6083bfa0020aa1bdf9fde0dd9c78fdd08c15a68b3c3042da412665b8"`
[INFO] [stderr]    Compiling rucc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `len`
[INFO] [stderr]  --> src/variable.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub(crate) len: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "c5dbd54b6083bfa0020aa1bdf9fde0dd9c78fdd08c15a68b3c3042da412665b8"`
[INFO] running `"docker" "rm" "-f" "c5dbd54b6083bfa0020aa1bdf9fde0dd9c78fdd08c15a68b3c3042da412665b8"`
[INFO] [stdout] c5dbd54b6083bfa0020aa1bdf9fde0dd9c78fdd08c15a68b3c3042da412665b8
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e53a2bb436b4c6a8692d6d42c5b5cddb316fdcc1034a4ec4305b8d21b7b36b78
[INFO] running `"docker" "start" "-a" "e53a2bb436b4c6a8692d6d42c5b5cddb316fdcc1034a4ec4305b8d21b7b36b78"`
[INFO] [stderr]    Compiling rucc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `len`
[INFO] [stderr]  --> src/variable.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub(crate) len: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "e53a2bb436b4c6a8692d6d42c5b5cddb316fdcc1034a4ec4305b8d21b7b36b78"`
[INFO] running `"docker" "rm" "-f" "e53a2bb436b4c6a8692d6d42c5b5cddb316fdcc1034a4ec4305b8d21b7b36b78"`
[INFO] [stdout] e53a2bb436b4c6a8692d6d42c5b5cddb316fdcc1034a4ec4305b8d21b7b36b78
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 94057486ac1e5276bbee7004473777e81764b1c2a782bab164d205c781a721e5
[INFO] running `"docker" "start" "-a" "94057486ac1e5276bbee7004473777e81764b1c2a782bab164d205c781a721e5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rucc-20694b2b56180822
[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" "94057486ac1e5276bbee7004473777e81764b1c2a782bab164d205c781a721e5"`
[INFO] running `"docker" "rm" "-f" "94057486ac1e5276bbee7004473777e81764b1c2a782bab164d205c781a721e5"`
[INFO] [stdout] 94057486ac1e5276bbee7004473777e81764b1c2a782bab164d205c781a721e5