[INFO] fetching crate m6stack 0.1.0...
[INFO] testing m6stack-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate m6stack 0.1.0 into /workspace/builds/worker-118/source
[INFO] validating manifest of crates.io crate m6stack 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate m6stack 0.1.0
[INFO] finished tweaking crates.io crate m6stack 0.1.0
[INFO] tweaked toml for crates.io crate m6stack 0.1.0 written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 696164a03af0ba227a2097054509000d7bb5af5a96b172a651f436973fc3fdd8
[INFO] running `Command { std: "docker" "start" "-a" "696164a03af0ba227a2097054509000d7bb5af5a96b172a651f436973fc3fdd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "696164a03af0ba227a2097054509000d7bb5af5a96b172a651f436973fc3fdd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "696164a03af0ba227a2097054509000d7bb5af5a96b172a651f436973fc3fdd8", kill_on_drop: false }`
[INFO] [stdout] 696164a03af0ba227a2097054509000d7bb5af5a96b172a651f436973fc3fdd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8030dc47d3142c0b9f90453de3670c5b9ed9fc56552c856772bd4348c264c72c
[INFO] running `Command { std: "docker" "start" "-a" "8030dc47d3142c0b9f90453de3670c5b9ed9fc56552c856772bd4348c264c72c", kill_on_drop: false }`
[INFO] [stderr]    Compiling m6stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "8030dc47d3142c0b9f90453de3670c5b9ed9fc56552c856772bd4348c264c72c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8030dc47d3142c0b9f90453de3670c5b9ed9fc56552c856772bd4348c264c72c", kill_on_drop: false }`
[INFO] [stdout] 8030dc47d3142c0b9f90453de3670c5b9ed9fc56552c856772bd4348c264c72c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40a9ee666b101008dad148bd1e2391ad238165fd9019bf43be3c8ddd03515298
[INFO] running `Command { std: "docker" "start" "-a" "40a9ee666b101008dad148bd1e2391ad238165fd9019bf43be3c8ddd03515298", kill_on_drop: false }`
[INFO] [stderr]    Compiling m6stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/m6stack-2eadc4a917cb7319)
[INFO] running `Command { std: "docker" "inspect" "40a9ee666b101008dad148bd1e2391ad238165fd9019bf43be3c8ddd03515298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a9ee666b101008dad148bd1e2391ad238165fd9019bf43be3c8ddd03515298", kill_on_drop: false }`
[INFO] [stdout] 40a9ee666b101008dad148bd1e2391ad238165fd9019bf43be3c8ddd03515298
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe4bd3987a93fb9f913fc02ea477a34c525635fee3f33f35b5ac8685f4db4495
[INFO] running `Command { std: "docker" "start" "-a" "fe4bd3987a93fb9f913fc02ea477a34c525635fee3f33f35b5ac8685f4db4495", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/m6stack-2eadc4a917cb7319)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests m6stack
[INFO] [stdout] test test::test_stack_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "fe4bd3987a93fb9f913fc02ea477a34c525635fee3f33f35b5ac8685f4db4495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4bd3987a93fb9f913fc02ea477a34c525635fee3f33f35b5ac8685f4db4495", kill_on_drop: false }`
[INFO] [stdout] fe4bd3987a93fb9f913fc02ea477a34c525635fee3f33f35b5ac8685f4db4495