[INFO] cloning repository https://github.com/fpdevil/MeanMedianMode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fpdevil/MeanMedianMode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffpdevil%2FMeanMedianMode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffpdevil%2FMeanMedianMode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b799cdf6a64e8dea3a3cf1627a757b0f79ef953
[INFO] testing fpdevil/MeanMedianMode against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffpdevil%2FMeanMedianMode" "/workspace/builds/worker-85/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-85/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fpdevil/MeanMedianMode on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fpdevil/MeanMedianMode
[INFO] finished tweaking git repo https://github.com/fpdevil/MeanMedianMode
[INFO] tweaked toml for git repo https://github.com/fpdevil/MeanMedianMode written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] crate git repo https://github.com/fpdevil/MeanMedianMode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74493e2a8cd84fc07b6e16e69e30917561539aefbc7a44133c0d5d64d821f2ba
[INFO] running `Command { std: "docker" "start" "-a" "74493e2a8cd84fc07b6e16e69e30917561539aefbc7a44133c0d5d64d821f2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74493e2a8cd84fc07b6e16e69e30917561539aefbc7a44133c0d5d64d821f2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74493e2a8cd84fc07b6e16e69e30917561539aefbc7a44133c0d5d64d821f2ba", kill_on_drop: false }`
[INFO] [stdout] 74493e2a8cd84fc07b6e16e69e30917561539aefbc7a44133c0d5d64d821f2ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aaf14a721c63328d3404d5b12823ba3d7b2bb0390034d8889933a391cb1dc28e
[INFO] running `Command { std: "docker" "start" "-a" "aaf14a721c63328d3404d5b12823ba3d7b2bb0390034d8889933a391cb1dc28e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling meanmedianmode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 &result.push(**k as f32);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 let _ = &result.push(**k as f32);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.48s
[INFO] running `Command { std: "docker" "inspect" "aaf14a721c63328d3404d5b12823ba3d7b2bb0390034d8889933a391cb1dc28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf14a721c63328d3404d5b12823ba3d7b2bb0390034d8889933a391cb1dc28e", kill_on_drop: false }`
[INFO] [stdout] aaf14a721c63328d3404d5b12823ba3d7b2bb0390034d8889933a391cb1dc28e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad04b5ef802006e0781d14c10335591ec00bdef69bc91b25e8ddccc2e5f6a486
[INFO] running `Command { std: "docker" "start" "-a" "ad04b5ef802006e0781d14c10335591ec00bdef69bc91b25e8ddccc2e5f6a486", kill_on_drop: false }`
[INFO] [stderr]    Compiling meanmedianmode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 &result.push(**k as f32);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 let _ = &result.push(**k as f32);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "ad04b5ef802006e0781d14c10335591ec00bdef69bc91b25e8ddccc2e5f6a486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad04b5ef802006e0781d14c10335591ec00bdef69bc91b25e8ddccc2e5f6a486", kill_on_drop: false }`
[INFO] [stdout] ad04b5ef802006e0781d14c10335591ec00bdef69bc91b25e8ddccc2e5f6a486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b69479cdab5f1e7b1f75e09c5b0271dd4eb7357fad2239726b0434ede2510b4
[INFO] running `Command { std: "docker" "start" "-a" "3b69479cdab5f1e7b1f75e09c5b0271dd4eb7357fad2239726b0434ede2510b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/main.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 &result.push(**k as f32);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 let _ = &result.push(**k as f32);
[INFO] [stderr]    |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `meanmedianmode` (bin "meanmedianmode" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.54s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/meanmedianmode-44024faf1bdb8aa6)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3b69479cdab5f1e7b1f75e09c5b0271dd4eb7357fad2239726b0434ede2510b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b69479cdab5f1e7b1f75e09c5b0271dd4eb7357fad2239726b0434ede2510b4", kill_on_drop: false }`
[INFO] [stdout] 3b69479cdab5f1e7b1f75e09c5b0271dd4eb7357fad2239726b0434ede2510b4