[INFO] cloning repository https://github.com/alekspickle/mutex-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alekspickle/mutex-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekspickle%2Fmutex-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekspickle%2Fmutex-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e713c84c043f2a1480002f680d41bd40c20558ee
[INFO] testing alekspickle/mutex-test against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekspickle%2Fmutex-test" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alekspickle/mutex-test on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alekspickle/mutex-test
[INFO] finished tweaking git repo https://github.com/alekspickle/mutex-test
[INFO] tweaked toml for git repo https://github.com/alekspickle/mutex-test written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/alekspickle/mutex-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 046c4afd7327e91b8b5e24568305a013a55d23a7a071aa2e364bbe476e970b5a
[INFO] running `Command { std: "docker" "start" "-a" "046c4afd7327e91b8b5e24568305a013a55d23a7a071aa2e364bbe476e970b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "046c4afd7327e91b8b5e24568305a013a55d23a7a071aa2e364bbe476e970b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046c4afd7327e91b8b5e24568305a013a55d23a7a071aa2e364bbe476e970b5a", kill_on_drop: false }`
[INFO] [stdout] 046c4afd7327e91b8b5e24568305a013a55d23a7a071aa2e364bbe476e970b5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0da660730848d9065200a27fa4405f20e236a43f5e1ee3f08bfc443d344254ce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0da660730848d9065200a27fa4405f20e236a43f5e1ee3f08bfc443d344254ce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling player-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `jump_right`
[INFO] [stdout]   --> src/executor.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn jump_right(player: u32) -> Message {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_up`
[INFO] [stdout]   --> src/executor.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn jump_up(player: u32) -> Message {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_down`
[INFO] [stdout]   --> src/executor.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn jump_down(player: u32) -> Message {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_potato`
[INFO] [stdout]    --> src/executor.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn eat_potato(player: u32) -> Message {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_cucumber`
[INFO] [stdout]    --> src/executor.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn eat_cucumber(player: u32) -> Message {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 17s
[INFO] running `Command { std: "docker" "inspect" "0da660730848d9065200a27fa4405f20e236a43f5e1ee3f08bfc443d344254ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da660730848d9065200a27fa4405f20e236a43f5e1ee3f08bfc443d344254ce", kill_on_drop: false }`
[INFO] [stdout] 0da660730848d9065200a27fa4405f20e236a43f5e1ee3f08bfc443d344254ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34d17e530cc19184c5cb6aef6766c82d16bd698964396d6931939dae937d376f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34d17e530cc19184c5cb6aef6766c82d16bd698964396d6931939dae937d376f", kill_on_drop: false }`
[INFO] [stderr]    Compiling player-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `jump_right`
[INFO] [stdout]   --> src/executor.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn jump_right(player: u32) -> Message {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_up`
[INFO] [stdout]   --> src/executor.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn jump_up(player: u32) -> Message {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_down`
[INFO] [stdout]   --> src/executor.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn jump_down(player: u32) -> Message {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_potato`
[INFO] [stdout]    --> src/executor.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn eat_potato(player: u32) -> Message {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_cucumber`
[INFO] [stdout]    --> src/executor.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn eat_cucumber(player: u32) -> Message {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "34d17e530cc19184c5cb6aef6766c82d16bd698964396d6931939dae937d376f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d17e530cc19184c5cb6aef6766c82d16bd698964396d6931939dae937d376f", kill_on_drop: false }`
[INFO] [stdout] 34d17e530cc19184c5cb6aef6766c82d16bd698964396d6931939dae937d376f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8cf28772f10234b3fa63f0ab6fb40fff368c369d4e649883ca78dc79290bb28b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8cf28772f10234b3fa63f0ab6fb40fff368c369d4e649883ca78dc79290bb28b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `jump_right`
[INFO] [stderr]   --> src/executor.rs:80:12
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn jump_right(player: u32) -> Message {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `jump_up`
[INFO] [stderr]   --> src/executor.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn jump_up(player: u32) -> Message {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `jump_down`
[INFO] [stderr]   --> src/executor.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn jump_down(player: u32) -> Message {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eat_potato`
[INFO] [stderr]    --> src/executor.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn eat_potato(player: u32) -> Message {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eat_cucumber`
[INFO] [stderr]    --> src/executor.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn eat_cucumber(player: u32) -> Message {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `player-demo` (bin "player-demo" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/player_demo-9fde4a9a7bbd68c2)
[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" "8cf28772f10234b3fa63f0ab6fb40fff368c369d4e649883ca78dc79290bb28b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf28772f10234b3fa63f0ab6fb40fff368c369d4e649883ca78dc79290bb28b", kill_on_drop: false }`
[INFO] [stdout] 8cf28772f10234b3fa63f0ab6fb40fff368c369d4e649883ca78dc79290bb28b