[INFO] fetching crate bird_tool_utils-man 0.4.0...
[INFO] testing bird_tool_utils-man-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate bird_tool_utils-man 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate bird_tool_utils-man 0.4.0 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 bird_tool_utils-man 0.4.0
[INFO] finished tweaking crates.io crate bird_tool_utils-man 0.4.0
[INFO] tweaked toml for crates.io crate bird_tool_utils-man 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate bird_tool_utils-man 0.4.0 already has a lockfile, it will not be regenerated
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 5c941570c1f0677929d2661be03e991c1cbe32e3fc09abd6fa75fb72dc1d7375
[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" "5c941570c1f0677929d2661be03e991c1cbe32e3fc09abd6fa75fb72dc1d7375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c941570c1f0677929d2661be03e991c1cbe32e3fc09abd6fa75fb72dc1d7375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c941570c1f0677929d2661be03e991c1cbe32e3fc09abd6fa75fb72dc1d7375", kill_on_drop: false }`
[INFO] [stdout] 5c941570c1f0677929d2661be03e991c1cbe32e3fc09abd6fa75fb72dc1d7375
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ba3181d8cc74f78bbf19871380437385637793333a9ba5bc436803fcd254572e
[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" "ba3181d8cc74f78bbf19871380437385637793333a9ba5bc436803fcd254572e", kill_on_drop: false }`
[INFO] [stderr]    Compiling roff v0.1.0
[INFO] [stderr]    Compiling bird_tool_utils-man v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "ba3181d8cc74f78bbf19871380437385637793333a9ba5bc436803fcd254572e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba3181d8cc74f78bbf19871380437385637793333a9ba5bc436803fcd254572e", kill_on_drop: false }`
[INFO] [stdout] ba3181d8cc74f78bbf19871380437385637793333a9ba5bc436803fcd254572e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 632b39d6015629935caa20bb8e2b30f80bc6edac707025344150a7d8827d8481
[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" "632b39d6015629935caa20bb8e2b30f80bc6edac707025344150a7d8827d8481", kill_on_drop: false }`
[INFO] [stderr]    Compiling bird_tool_utils-man v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `man`
[INFO] [stdout]  --> examples/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate man;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bird_tool_utils-man`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "632b39d6015629935caa20bb8e2b30f80bc6edac707025344150a7d8827d8481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632b39d6015629935caa20bb8e2b30f80bc6edac707025344150a7d8827d8481", kill_on_drop: false }`
[INFO] [stdout] 632b39d6015629935caa20bb8e2b30f80bc6edac707025344150a7d8827d8481