[INFO] fetching crate benzene 0.2.0...
[INFO] testing benzene-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate benzene 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate benzene 0.2.0 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 benzene 0.2.0
[INFO] finished tweaking crates.io crate benzene 0.2.0
[INFO] tweaked toml for crates.io crate benzene 0.2.0 written to /workspace/builds/worker-13/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] [stderr]     Blocking waiting for file lock on package cache
[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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e9e5710b6c102b43d77258e3476d8874c2f3fe8b2ecae3c6ed357ebf12186c2
[INFO] running `Command { std: "docker" "start" "-a" "6e9e5710b6c102b43d77258e3476d8874c2f3fe8b2ecae3c6ed357ebf12186c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e9e5710b6c102b43d77258e3476d8874c2f3fe8b2ecae3c6ed357ebf12186c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e9e5710b6c102b43d77258e3476d8874c2f3fe8b2ecae3c6ed357ebf12186c2", kill_on_drop: false }`
[INFO] [stdout] 6e9e5710b6c102b43d77258e3476d8874c2f3fe8b2ecae3c6ed357ebf12186c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 5e8fdf83900dff031ec688392d6b9dc854ed1c8c82cd1ba6911c5c1953a2192e
[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" "5e8fdf83900dff031ec688392d6b9dc854ed1c8c82cd1ba6911c5c1953a2192e", kill_on_drop: false }`
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]    Compiling skeptic v0.6.1
[INFO] [stderr]    Compiling carboxyl v0.2.1
[INFO] [stderr]    Compiling benzene v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `Command { std: "docker" "inspect" "5e8fdf83900dff031ec688392d6b9dc854ed1c8c82cd1ba6911c5c1953a2192e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e8fdf83900dff031ec688392d6b9dc854ed1c8c82cd1ba6911c5c1953a2192e", kill_on_drop: false }`
[INFO] [stdout] 5e8fdf83900dff031ec688392d6b9dc854ed1c8c82cd1ba6911c5c1953a2192e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f072fb19ec84c6dc103d7dd8b84c4e231dcd63942731cdcd1482611ffb3c7c1a
[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" "f072fb19ec84c6dc103d7dd8b84c4e231dcd63942731cdcd1482611ffb3c7c1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling benzene v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "f072fb19ec84c6dc103d7dd8b84c4e231dcd63942731cdcd1482611ffb3c7c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f072fb19ec84c6dc103d7dd8b84c4e231dcd63942731cdcd1482611ffb3c7c1a", kill_on_drop: false }`
[INFO] [stdout] f072fb19ec84c6dc103d7dd8b84c4e231dcd63942731cdcd1482611ffb3c7c1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] c0a9859edd2987289cde8c1b46f46d39f0d35a6962e492545d1f918854e73690
[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" "c0a9859edd2987289cde8c1b46f46d39f0d35a6962e492545d1f918854e73690", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/benzene-610b371ed7b0cf26
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests benzene
[INFO] [stdout] test result: ok. 0 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" "c0a9859edd2987289cde8c1b46f46d39f0d35a6962e492545d1f918854e73690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a9859edd2987289cde8c1b46f46d39f0d35a6962e492545d1f918854e73690", kill_on_drop: false }`
[INFO] [stdout] c0a9859edd2987289cde8c1b46f46d39f0d35a6962e492545d1f918854e73690