[INFO] crate auto-check-rs 0.3.1 is already in cache
[INFO] testing auto-check-rs-0.3.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate auto-check-rs 0.3.1 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate auto-check-rs 0.3.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate auto-check-rs 0.3.1
[INFO] finished tweaking crates.io crate auto-check-rs 0.3.1
[INFO] tweaked toml for crates.io crate auto-check-rs 0.3.1 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 654b9542f5dc1347442ccee6e2e802a51cfbd975796550cd507c78d0d221b085
[INFO] running `"docker" "start" "-a" "654b9542f5dc1347442ccee6e2e802a51cfbd975796550cd507c78d0d221b085"`
[INFO] [stderr]    Compiling auto-check-rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:197:17
[INFO] [stderr]     |
[INFO] [stderr] 197 |             let mut run_commands;
[INFO] [stderr]     |                 ----^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/main.rs:1:9
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![deny(warnings)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_mut)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.38s
[INFO] running `"docker" "inspect" "654b9542f5dc1347442ccee6e2e802a51cfbd975796550cd507c78d0d221b085"`
[INFO] running `"docker" "rm" "-f" "654b9542f5dc1347442ccee6e2e802a51cfbd975796550cd507c78d0d221b085"`
[INFO] [stdout] 654b9542f5dc1347442ccee6e2e802a51cfbd975796550cd507c78d0d221b085
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] be4ab7f491c8d881d47644afab747a54a2a6ac3e04b54e368a7d7f20c16499eb
[INFO] running `"docker" "start" "-a" "be4ab7f491c8d881d47644afab747a54a2a6ac3e04b54e368a7d7f20c16499eb"`
[INFO] [stderr]    Compiling auto-check-rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:197:17
[INFO] [stderr]     |
[INFO] [stderr] 197 |             let mut run_commands;
[INFO] [stderr]     |                 ----^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/main.rs:1:9
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![deny(warnings)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_mut)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "be4ab7f491c8d881d47644afab747a54a2a6ac3e04b54e368a7d7f20c16499eb"`
[INFO] running `"docker" "rm" "-f" "be4ab7f491c8d881d47644afab747a54a2a6ac3e04b54e368a7d7f20c16499eb"`
[INFO] [stdout] be4ab7f491c8d881d47644afab747a54a2a6ac3e04b54e368a7d7f20c16499eb
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] a149b0e7a5d19f4acde6ec1bd2edf82534ab6d0ce85ae6bb6756c4cc134f1114
[INFO] running `"docker" "start" "-a" "a149b0e7a5d19f4acde6ec1bd2edf82534ab6d0ce85ae6bb6756c4cc134f1114"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/auto_check_rs-6d05264444465fce
[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" "a149b0e7a5d19f4acde6ec1bd2edf82534ab6d0ce85ae6bb6756c4cc134f1114"`
[INFO] running `"docker" "rm" "-f" "a149b0e7a5d19f4acde6ec1bd2edf82534ab6d0ce85ae6bb6756c4cc134f1114"`
[INFO] [stdout] a149b0e7a5d19f4acde6ec1bd2edf82534ab6d0ce85ae6bb6756c4cc134f1114