[INFO] fetching crate nonblock-logger 0.1.6...
[INFO] testing nonblock-logger-0.1.6 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate nonblock-logger 0.1.6 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate nonblock-logger 0.1.6 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nonblock-logger 0.1.6
[INFO] finished tweaking crates.io crate nonblock-logger 0.1.6
[INFO] tweaked toml for crates.io crate nonblock-logger 0.1.6 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate nonblock-logger 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 682f5c23dee42f11a434ec085f6d5da357acea2ef9d0ddb7d38f40200735788f
[INFO] running `Command { std: "docker" "start" "-a" "682f5c23dee42f11a434ec085f6d5da357acea2ef9d0ddb7d38f40200735788f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "682f5c23dee42f11a434ec085f6d5da357acea2ef9d0ddb7d38f40200735788f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "682f5c23dee42f11a434ec085f6d5da357acea2ef9d0ddb7d38f40200735788f", kill_on_drop: false }`
[INFO] [stdout] 682f5c23dee42f11a434ec085f6d5da357acea2ef9d0ddb7d38f40200735788f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0366a0aa8be322ef51c7a28af14f1d7b196b986a627f9d52d9702e64b37e51a9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0366a0aa8be322ef51c7a28af14f1d7b196b986a627f9d52d9702e64b37e51a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling nonblock-logger v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.89s
[INFO] running `Command { std: "docker" "inspect" "0366a0aa8be322ef51c7a28af14f1d7b196b986a627f9d52d9702e64b37e51a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0366a0aa8be322ef51c7a28af14f1d7b196b986a627f9d52d9702e64b37e51a9", kill_on_drop: false }`
[INFO] [stdout] 0366a0aa8be322ef51c7a28af14f1d7b196b986a627f9d52d9702e64b37e51a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5469c83616b69b6e9c56b601ed9eb2a5c5fed75a1dbb3df98a49ff7cd02348cb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5469c83616b69b6e9c56b601ed9eb2a5c5fed75a1dbb3df98a49ff7cd02348cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling nonblock-logger v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "5469c83616b69b6e9c56b601ed9eb2a5c5fed75a1dbb3df98a49ff7cd02348cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5469c83616b69b6e9c56b601ed9eb2a5c5fed75a1dbb3df98a49ff7cd02348cb", kill_on_drop: false }`
[INFO] [stdout] 5469c83616b69b6e9c56b601ed9eb2a5c5fed75a1dbb3df98a49ff7cd02348cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 924eca6db024b7a3d936dce74775fcab76c67afe0f81e282cb619f820c07e3d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "924eca6db024b7a3d936dce74775fcab76c67afe0f81e282cb619f820c07e3d3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nonblock_logger-d377dfa4fe604ae6
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nonblock-logger
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... 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" "924eca6db024b7a3d936dce74775fcab76c67afe0f81e282cb619f820c07e3d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924eca6db024b7a3d936dce74775fcab76c67afe0f81e282cb619f820c07e3d3", kill_on_drop: false }`
[INFO] [stdout] 924eca6db024b7a3d936dce74775fcab76c67afe0f81e282cb619f820c07e3d3