[INFO] fetching crate monoid 0.0.5...
[INFO] testing monoid-0.0.5 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate monoid 0.0.5 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate monoid 0.0.5 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 monoid 0.0.5
[INFO] finished tweaking crates.io crate monoid 0.0.5
[INFO] tweaked toml for crates.io crate monoid 0.0.5 written to /workspace/builds/worker-78/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 895d3880571b6ab753bc4098ef70561ad3a8caa8ae2e70ba8414b8056b007ea2
[INFO] running `Command { std: "docker" "start" "-a" "895d3880571b6ab753bc4098ef70561ad3a8caa8ae2e70ba8414b8056b007ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "895d3880571b6ab753bc4098ef70561ad3a8caa8ae2e70ba8414b8056b007ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "895d3880571b6ab753bc4098ef70561ad3a8caa8ae2e70ba8414b8056b007ea2", kill_on_drop: false }`
[INFO] [stdout] 895d3880571b6ab753bc4098ef70561ad3a8caa8ae2e70ba8414b8056b007ea2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 29169920490f6282a34d1493c03c9bacc594dcc173c168a87c904c2ffa32f8a6
[INFO] running `Command { std: "docker" "start" "-a" "29169920490f6282a34d1493c03c9bacc594dcc173c168a87c904c2ffa32f8a6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling monoid v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `Command { std: "docker" "inspect" "29169920490f6282a34d1493c03c9bacc594dcc173c168a87c904c2ffa32f8a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29169920490f6282a34d1493c03c9bacc594dcc173c168a87c904c2ffa32f8a6", kill_on_drop: false }`
[INFO] [stdout] 29169920490f6282a34d1493c03c9bacc594dcc173c168a87c904c2ffa32f8a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] dd3f494bd9a5fbea3665fce03cdf6aeda172347177ad37205ae0c929cf6c6856
[INFO] running `Command { std: "docker" "start" "-a" "dd3f494bd9a5fbea3665fce03cdf6aeda172347177ad37205ae0c929cf6c6856", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling monoid v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.21s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/monoid-d7f1a73f5d3d28ca)
[INFO] running `Command { std: "docker" "inspect" "dd3f494bd9a5fbea3665fce03cdf6aeda172347177ad37205ae0c929cf6c6856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3f494bd9a5fbea3665fce03cdf6aeda172347177ad37205ae0c929cf6c6856", kill_on_drop: false }`
[INFO] [stdout] dd3f494bd9a5fbea3665fce03cdf6aeda172347177ad37205ae0c929cf6c6856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] a67d9cd18fcedaca7d645aad1e33c6f79850f26449f78ae0e0fda56b2eb89eca
[INFO] running `Command { std: "docker" "start" "-a" "a67d9cd18fcedaca7d645aad1e33c6f79850f26449f78ae0e0fda56b2eb89eca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/monoid-d7f1a73f5d3d28ca)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::both ... ok
[INFO] [stdout] test tests::cowstring_append ... ok
[INFO] [stdout] test tests::left ... ok
[INFO] [stdout] test tests::none ... ok
[INFO] [stdout] test tests::right ... ok
[INFO] [stdout] test tests::string_append ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests monoid
[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" "a67d9cd18fcedaca7d645aad1e33c6f79850f26449f78ae0e0fda56b2eb89eca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67d9cd18fcedaca7d645aad1e33c6f79850f26449f78ae0e0fda56b2eb89eca", kill_on_drop: false }`
[INFO] [stdout] a67d9cd18fcedaca7d645aad1e33c6f79850f26449f78ae0e0fda56b2eb89eca