[INFO] updating cached repository https://github.com/kper/ueb_checker
[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] 9fd6a7a22ec83ff08820676eb2e12f5470e44153
[INFO] testing kper/ueb_checker against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkper%2Fueb_checker" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kper/ueb_checker 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/kper/ueb_checker
[INFO] finished tweaking git repo https://github.com/kper/ueb_checker
[INFO] tweaked toml for git repo https://github.com/kper/ueb_checker written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kper/ueb_checker 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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] 7a218a761102076c35493575aa359d2a40146190efb7b81c1c144fc42c0bef78
[INFO] running `"docker" "start" "-a" "7a218a761102076c35493575aa359d2a40146190efb7b81c1c144fc42c0bef78"`
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling winconsole v0.10.0
[INFO] [stderr]    Compiling colored v1.8.0
[INFO] [stderr]    Compiling result_checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let mut stdin = child.stdin.as_mut().expect("Failed to open stdin");
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `"docker" "inspect" "7a218a761102076c35493575aa359d2a40146190efb7b81c1c144fc42c0bef78"`
[INFO] running `"docker" "rm" "-f" "7a218a761102076c35493575aa359d2a40146190efb7b81c1c144fc42c0bef78"`
[INFO] [stdout] 7a218a761102076c35493575aa359d2a40146190efb7b81c1c144fc42c0bef78
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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] 2b0fa8ce50c5c23c02b5477e7ef38cfd67406b607f4dc74f3600171f2a63ccf0
[INFO] running `"docker" "start" "-a" "2b0fa8ce50c5c23c02b5477e7ef38cfd67406b607f4dc74f3600171f2a63ccf0"`
[INFO] [stderr]    Compiling result_checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let mut stdin = child.stdin.as_mut().expect("Failed to open stdin");
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "2b0fa8ce50c5c23c02b5477e7ef38cfd67406b607f4dc74f3600171f2a63ccf0"`
[INFO] running `"docker" "rm" "-f" "2b0fa8ce50c5c23c02b5477e7ef38cfd67406b607f4dc74f3600171f2a63ccf0"`
[INFO] [stdout] 2b0fa8ce50c5c23c02b5477e7ef38cfd67406b607f4dc74f3600171f2a63ccf0
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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] 61c2b29b01c6dca4aa89f93dc60b0ec774a85d612ebef1e1020d2e4cb96fba37
[INFO] running `"docker" "start" "-a" "61c2b29b01c6dca4aa89f93dc60b0ec774a85d612ebef1e1020d2e4cb96fba37"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/result_checker-1b051c40c2a17e07
[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" "61c2b29b01c6dca4aa89f93dc60b0ec774a85d612ebef1e1020d2e4cb96fba37"`
[INFO] running `"docker" "rm" "-f" "61c2b29b01c6dca4aa89f93dc60b0ec774a85d612ebef1e1020d2e4cb96fba37"`
[INFO] [stdout] 61c2b29b01c6dca4aa89f93dc60b0ec774a85d612ebef1e1020d2e4cb96fba37