[INFO] updating cached repository https://github.com/william42/erato
[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] b0e1bba392aa99b64f3dd11f1fb58b1f4fe764af
[INFO] testing william42/erato against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliam42%2Ferato" "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/william42/erato 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 git repo https://github.com/william42/erato
[INFO] finished tweaking git repo https://github.com/william42/erato
[INFO] tweaked toml for git repo https://github.com/william42/erato written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/william42/erato already has a lockfile, it will not be regenerated
[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-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] cd881741af999a0ec795a0a582fe07df2b09287d2ae131436cb5d2ab245733f8
[INFO] running `"docker" "start" "-a" "cd881741af999a0ec795a0a582fe07df2b09287d2ae131436cb5d2ab245733f8"`
[INFO] [stderr]    Compiling erato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]  --> src/main.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 |         if let Some(&Reverse((m, p))) = heap.peek() {
[INFO] [stderr]   |                                  ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "cd881741af999a0ec795a0a582fe07df2b09287d2ae131436cb5d2ab245733f8"`
[INFO] running `"docker" "rm" "-f" "cd881741af999a0ec795a0a582fe07df2b09287d2ae131436cb5d2ab245733f8"`
[INFO] [stdout] cd881741af999a0ec795a0a582fe07df2b09287d2ae131436cb5d2ab245733f8
[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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 21227f8705dc96ec1ed53aacf2434421b3ef3cd76d98802ea7e6553e3c0846cd
[INFO] running `"docker" "start" "-a" "21227f8705dc96ec1ed53aacf2434421b3ef3cd76d98802ea7e6553e3c0846cd"`
[INFO] [stderr]    Compiling erato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]  --> src/main.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 |         if let Some(&Reverse((m, p))) = heap.peek() {
[INFO] [stderr]   |                                  ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "21227f8705dc96ec1ed53aacf2434421b3ef3cd76d98802ea7e6553e3c0846cd"`
[INFO] running `"docker" "rm" "-f" "21227f8705dc96ec1ed53aacf2434421b3ef3cd76d98802ea7e6553e3c0846cd"`
[INFO] [stdout] 21227f8705dc96ec1ed53aacf2434421b3ef3cd76d98802ea7e6553e3c0846cd
[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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 9d20f7f9362a2d383e1717bab54598ab0cbbb51f9d2b394ea14f651984bdf084
[INFO] running `"docker" "start" "-a" "9d20f7f9362a2d383e1717bab54598ab0cbbb51f9d2b394ea14f651984bdf084"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/erato-5f56e83153448983
[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" "9d20f7f9362a2d383e1717bab54598ab0cbbb51f9d2b394ea14f651984bdf084"`
[INFO] running `"docker" "rm" "-f" "9d20f7f9362a2d383e1717bab54598ab0cbbb51f9d2b394ea14f651984bdf084"`
[INFO] [stdout] 9d20f7f9362a2d383e1717bab54598ab0cbbb51f9d2b394ea14f651984bdf084