[INFO] fetching crate fiers 0.1.0...
[INFO] testing fiers-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate fiers 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate fiers 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fiers 0.1.0
[INFO] finished tweaking crates.io crate fiers 0.1.0
[INFO] tweaked toml for crates.io crate fiers 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20a3719eff4b74e9fa2cdfd914e9b6dc7f185ae3aa9ec6ba5dce8a315b0514b6
[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" "20a3719eff4b74e9fa2cdfd914e9b6dc7f185ae3aa9ec6ba5dce8a315b0514b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20a3719eff4b74e9fa2cdfd914e9b6dc7f185ae3aa9ec6ba5dce8a315b0514b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a3719eff4b74e9fa2cdfd914e9b6dc7f185ae3aa9ec6ba5dce8a315b0514b6", kill_on_drop: false }`
[INFO] [stdout] 20a3719eff4b74e9fa2cdfd914e9b6dc7f185ae3aa9ec6ba5dce8a315b0514b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdb6eb11660e5f3cbed87b439e37bcc9730436633dd3ba7bfcfb06e03594105b
[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" "bdb6eb11660e5f3cbed87b439e37bcc9730436633dd3ba7bfcfb06e03594105b", kill_on_drop: false }`
[INFO] [stderr]    Compiling fiers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "bdb6eb11660e5f3cbed87b439e37bcc9730436633dd3ba7bfcfb06e03594105b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb6eb11660e5f3cbed87b439e37bcc9730436633dd3ba7bfcfb06e03594105b", kill_on_drop: false }`
[INFO] [stdout] bdb6eb11660e5f3cbed87b439e37bcc9730436633dd3ba7bfcfb06e03594105b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 937d1c03e8a0353ca88a70d31489058134f622c80813f0033c3cef1a66d8a1c0
[INFO] running `Command { std: "docker" "start" "-a" "937d1c03e8a0353ca88a70d31489058134f622c80813f0033c3cef1a66d8a1c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling fiers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "937d1c03e8a0353ca88a70d31489058134f622c80813f0033c3cef1a66d8a1c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "937d1c03e8a0353ca88a70d31489058134f622c80813f0033c3cef1a66d8a1c0", kill_on_drop: false }`
[INFO] [stdout] 937d1c03e8a0353ca88a70d31489058134f622c80813f0033c3cef1a66d8a1c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7c94582a1513b5c003f7372fb73f48016e1bf54be57d4ef9fdec43116d8fd2d
[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" "a7c94582a1513b5c003f7372fb73f48016e1bf54be57d4ef9fdec43116d8fd2d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fiers-f075d727907c2df2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fiers
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7c94582a1513b5c003f7372fb73f48016e1bf54be57d4ef9fdec43116d8fd2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c94582a1513b5c003f7372fb73f48016e1bf54be57d4ef9fdec43116d8fd2d", kill_on_drop: false }`
[INFO] [stdout] a7c94582a1513b5c003f7372fb73f48016e1bf54be57d4ef9fdec43116d8fd2d