[INFO] fetching crate aktoro-flow-channel 0.0.0...
[INFO] testing aktoro-flow-channel-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate aktoro-flow-channel 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate aktoro-flow-channel 0.0.0 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 aktoro-flow-channel 0.0.0
[INFO] finished tweaking crates.io crate aktoro-flow-channel 0.0.0
[INFO] tweaked toml for crates.io crate aktoro-flow-channel 0.0.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2591dca48b955639d4438b22779ff26e92ba8722c32b3046be67df3dd476eacf
[INFO] running `Command { std: "docker" "start" "-a" "2591dca48b955639d4438b22779ff26e92ba8722c32b3046be67df3dd476eacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2591dca48b955639d4438b22779ff26e92ba8722c32b3046be67df3dd476eacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2591dca48b955639d4438b22779ff26e92ba8722c32b3046be67df3dd476eacf", kill_on_drop: false }`
[INFO] [stdout] 2591dca48b955639d4438b22779ff26e92ba8722c32b3046be67df3dd476eacf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 50f49fd9a2084f2c4f30e49a16d5d6f093b0d7be3d2106f44fd8dfcad0eca94b
[INFO] running `Command { std: "docker" "start" "-a" "50f49fd9a2084f2c4f30e49a16d5d6f093b0d7be3d2106f44fd8dfcad0eca94b", kill_on_drop: false }`
[INFO] [stderr]    Compiling aktoro-flow-channel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "50f49fd9a2084f2c4f30e49a16d5d6f093b0d7be3d2106f44fd8dfcad0eca94b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f49fd9a2084f2c4f30e49a16d5d6f093b0d7be3d2106f44fd8dfcad0eca94b", kill_on_drop: false }`
[INFO] [stdout] 50f49fd9a2084f2c4f30e49a16d5d6f093b0d7be3d2106f44fd8dfcad0eca94b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c295310b8b293fd3549edc467de1cf72e536c6fcd5b6d43fa43f582cf5757f65
[INFO] running `Command { std: "docker" "start" "-a" "c295310b8b293fd3549edc467de1cf72e536c6fcd5b6d43fa43f582cf5757f65", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling aktoro-flow-channel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "c295310b8b293fd3549edc467de1cf72e536c6fcd5b6d43fa43f582cf5757f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c295310b8b293fd3549edc467de1cf72e536c6fcd5b6d43fa43f582cf5757f65", kill_on_drop: false }`
[INFO] [stdout] c295310b8b293fd3549edc467de1cf72e536c6fcd5b6d43fa43f582cf5757f65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4379b44826accf1550f7d31b0b55ee9035227499a5e4edbf379add51e843b07f
[INFO] running `Command { std: "docker" "start" "-a" "4379b44826accf1550f7d31b0b55ee9035227499a5e4edbf379add51e843b07f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/aktoro_flow_channel-9ff8b0f56a09fe96)
[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] [stderr]    Doc-tests aktoro-flow-channel
[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" "4379b44826accf1550f7d31b0b55ee9035227499a5e4edbf379add51e843b07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4379b44826accf1550f7d31b0b55ee9035227499a5e4edbf379add51e843b07f", kill_on_drop: false }`
[INFO] [stdout] 4379b44826accf1550f7d31b0b55ee9035227499a5e4edbf379add51e843b07f