[INFO] fetching crate bit-io 0.1.0...
[INFO] testing bit-io-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate bit-io 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bit-io 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 bit-io 0.1.0
[INFO] finished tweaking crates.io crate bit-io 0.1.0
[INFO] tweaked toml for crates.io crate bit-io 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] 774502c5ace50ab08622a5673d2efc8f2f5ffb53d97562110a83cdba970db607
[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" "774502c5ace50ab08622a5673d2efc8f2f5ffb53d97562110a83cdba970db607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "774502c5ace50ab08622a5673d2efc8f2f5ffb53d97562110a83cdba970db607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "774502c5ace50ab08622a5673d2efc8f2f5ffb53d97562110a83cdba970db607", kill_on_drop: false }`
[INFO] [stdout] 774502c5ace50ab08622a5673d2efc8f2f5ffb53d97562110a83cdba970db607
[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] ef999399ffd9d95a5b06a9c0d39f7af29d358e6fd6288363f2493aeb4f8bf452
[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" "ef999399ffd9d95a5b06a9c0d39f7af29d358e6fd6288363f2493aeb4f8bf452", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "ef999399ffd9d95a5b06a9c0d39f7af29d358e6fd6288363f2493aeb4f8bf452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef999399ffd9d95a5b06a9c0d39f7af29d358e6fd6288363f2493aeb4f8bf452", kill_on_drop: false }`
[INFO] [stdout] ef999399ffd9d95a5b06a9c0d39f7af29d358e6fd6288363f2493aeb4f8bf452
[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] [stdout] bf45d4219263931b5020d77418bfa2d8b2ece8d43bf7dfe9c27da9d95e1e327a
[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" "bf45d4219263931b5020d77418bfa2d8b2ece8d43bf7dfe9c27da9d95e1e327a", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "bf45d4219263931b5020d77418bfa2d8b2ece8d43bf7dfe9c27da9d95e1e327a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf45d4219263931b5020d77418bfa2d8b2ece8d43bf7dfe9c27da9d95e1e327a", kill_on_drop: false }`
[INFO] [stdout] bf45d4219263931b5020d77418bfa2d8b2ece8d43bf7dfe9c27da9d95e1e327a
[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] 4db85df742d04204105d6d0c19ab630716c454d95b00ff46a9c888471be16a52
[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" "4db85df742d04204105d6d0c19ab630716c454d95b00ff46a9c888471be16a52", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bit_io-a40486fa51793db8
[INFO] [stdout] test writer::tests::within_byte ... ok
[INFO] [stderr]    Doc-tests bit-io
[INFO] [stdout] test writer::tests::overlapping ... ok
[INFO] [stdout] test writer::tests::buffer_overflow ... ok
[INFO] [stdout] test reader::tests::within_byte ... ok
[INFO] [stdout] test reader::tests::overlapping ... ok
[INFO] [stdout] test reader::tests::buffer_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4db85df742d04204105d6d0c19ab630716c454d95b00ff46a9c888471be16a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4db85df742d04204105d6d0c19ab630716c454d95b00ff46a9c888471be16a52", kill_on_drop: false }`
[INFO] [stdout] 4db85df742d04204105d6d0c19ab630716c454d95b00ff46a9c888471be16a52