[INFO] fetching crate bchannel 0.0.10...
[INFO] testing bchannel-0.0.10 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate bchannel 0.0.10 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate bchannel 0.0.10 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bchannel 0.0.10
[INFO] finished tweaking crates.io crate bchannel 0.0.10
[INFO] tweaked toml for crates.io crate bchannel 0.0.10 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2021-09-08" "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-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af43b84847fcc7ac58b27d9ed80c8e615f8c517319b435534808f6dd352d122c
[INFO] running `Command { std: "docker" "start" "-a" "af43b84847fcc7ac58b27d9ed80c8e615f8c517319b435534808f6dd352d122c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af43b84847fcc7ac58b27d9ed80c8e615f8c517319b435534808f6dd352d122c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af43b84847fcc7ac58b27d9ed80c8e615f8c517319b435534808f6dd352d122c", kill_on_drop: false }`
[INFO] [stdout] af43b84847fcc7ac58b27d9ed80c8e615f8c517319b435534808f6dd352d122c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8076c4945d050cf6b2ee7cfbe4d1788db793742ea28b61ee689cd8ee4cd35b11
[INFO] running `Command { std: "docker" "start" "-a" "8076c4945d050cf6b2ee7cfbe4d1788db793742ea28b61ee689cd8ee4cd35b11", kill_on_drop: false }`
[INFO] [stderr]    Compiling bchannel v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "8076c4945d050cf6b2ee7cfbe4d1788db793742ea28b61ee689cd8ee4cd35b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8076c4945d050cf6b2ee7cfbe4d1788db793742ea28b61ee689cd8ee4cd35b11", kill_on_drop: false }`
[INFO] [stdout] 8076c4945d050cf6b2ee7cfbe4d1788db793742ea28b61ee689cd8ee4cd35b11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 483f63e2806c1ee4e86f89bf096cd9197127196601d4e9a00dec506d4f482740
[INFO] running `Command { std: "docker" "start" "-a" "483f63e2806c1ee4e86f89bf096cd9197127196601d4e9a00dec506d4f482740", kill_on_drop: false }`
[INFO] [stderr]    Compiling bchannel v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "483f63e2806c1ee4e86f89bf096cd9197127196601d4e9a00dec506d4f482740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483f63e2806c1ee4e86f89bf096cd9197127196601d4e9a00dec506d4f482740", kill_on_drop: false }`
[INFO] [stdout] 483f63e2806c1ee4e86f89bf096cd9197127196601d4e9a00dec506d4f482740
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 565ac32f339e81b2b044115f41773b4f50ba2f201c8ceaa337745d5e3bc7a8ae
[INFO] running `Command { std: "docker" "start" "-a" "565ac32f339e81b2b044115f41773b4f50ba2f201c8ceaa337745d5e3bc7a8ae", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bchannel-433aa8c0d0a18cf7)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::basic ... ok
[INFO] [stdout] test test::error ... ok
[INFO] [stdout] test test::into_iter ... ok
[INFO] [stdout] test test::iter ... ok
[INFO] [stdout] test test::iter_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bchannel
[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" "565ac32f339e81b2b044115f41773b4f50ba2f201c8ceaa337745d5e3bc7a8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "565ac32f339e81b2b044115f41773b4f50ba2f201c8ceaa337745d5e3bc7a8ae", kill_on_drop: false }`
[INFO] [stdout] 565ac32f339e81b2b044115f41773b4f50ba2f201c8ceaa337745d5e3bc7a8ae