[INFO] fetching crate conqueue 0.4.0...
[INFO] testing conqueue-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate conqueue 0.4.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate conqueue 0.4.0 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 crates.io crate conqueue 0.4.0
[INFO] finished tweaking crates.io crate conqueue 0.4.0
[INFO] tweaked toml for crates.io crate conqueue 0.4.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] [stdout] b61b55facb2bc37f6b408c913fa0ab51b3d9b2a4894042d7ba5d857dca2d4a15
[INFO] running `Command { std: "docker" "start" "-a" "b61b55facb2bc37f6b408c913fa0ab51b3d9b2a4894042d7ba5d857dca2d4a15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b61b55facb2bc37f6b408c913fa0ab51b3d9b2a4894042d7ba5d857dca2d4a15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61b55facb2bc37f6b408c913fa0ab51b3d9b2a4894042d7ba5d857dca2d4a15", kill_on_drop: false }`
[INFO] [stdout] b61b55facb2bc37f6b408c913fa0ab51b3d9b2a4894042d7ba5d857dca2d4a15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] fba784e9565c8dbcca84b9d2187320ad027898c0b2039caf409af2e52628e3c8
[INFO] running `Command { std: "docker" "start" "-a" "fba784e9565c8dbcca84b9d2187320ad027898c0b2039caf409af2e52628e3c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling conqueue v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "fba784e9565c8dbcca84b9d2187320ad027898c0b2039caf409af2e52628e3c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba784e9565c8dbcca84b9d2187320ad027898c0b2039caf409af2e52628e3c8", kill_on_drop: false }`
[INFO] [stdout] fba784e9565c8dbcca84b9d2187320ad027898c0b2039caf409af2e52628e3c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 15bb9c26fc13ae6459f02d14ffdded63dc83fd94605993731330638485efb61e
[INFO] running `Command { std: "docker" "start" "-a" "15bb9c26fc13ae6459f02d14ffdded63dc83fd94605993731330638485efb61e", kill_on_drop: false }`
[INFO] [stderr]    Compiling conqueue v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "15bb9c26fc13ae6459f02d14ffdded63dc83fd94605993731330638485efb61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15bb9c26fc13ae6459f02d14ffdded63dc83fd94605993731330638485efb61e", kill_on_drop: false }`
[INFO] [stdout] 15bb9c26fc13ae6459f02d14ffdded63dc83fd94605993731330638485efb61e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 2599445147d64dea93c8178c7a7fd35cf1f93737cf26468d859a1784e4079285
[INFO] running `Command { std: "docker" "start" "-a" "2599445147d64dea93c8178c7a7fd35cf1f93737cf26468d859a1784e4079285", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/conqueue-d36862f604229e17)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::benchmark ... ignored
[INFO] [stdout] test tests::test_disconnected ... ok
[INFO] [stdout] test tests::test_single_thread ... ok
[INFO] [stdout] test tests::test_multiple_threads ... ok
[INFO] [stderr]    Doc-tests conqueue
[INFO] [stdout] test tests::test_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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" "2599445147d64dea93c8178c7a7fd35cf1f93737cf26468d859a1784e4079285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2599445147d64dea93c8178c7a7fd35cf1f93737cf26468d859a1784e4079285", kill_on_drop: false }`
[INFO] [stdout] 2599445147d64dea93c8178c7a7fd35cf1f93737cf26468d859a1784e4079285