[INFO] fetching crate bird_tool_utils-man 0.4.0...
[INFO] testing bird_tool_utils-man-0.4.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate bird_tool_utils-man 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate bird_tool_utils-man 0.4.0 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 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-1/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded roff v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+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] 84d21c06062400f32cf396175187736f2373f92165ff3c18dd614a48d210261a
[INFO] running `Command { std: "docker" "start" "-a" "84d21c06062400f32cf396175187736f2373f92165ff3c18dd614a48d210261a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84d21c06062400f32cf396175187736f2373f92165ff3c18dd614a48d210261a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84d21c06062400f32cf396175187736f2373f92165ff3c18dd614a48d210261a", kill_on_drop: false }`
[INFO] [stdout] 84d21c06062400f32cf396175187736f2373f92165ff3c18dd614a48d210261a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bc0c7ade95d77d6745fe06b96d0fbf26028727bc01aa7651e43b43ec5866eda
[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" "0bc0c7ade95d77d6745fe06b96d0fbf26028727bc01aa7651e43b43ec5866eda", 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 1.98s
[INFO] running `Command { std: "docker" "inspect" "0bc0c7ade95d77d6745fe06b96d0fbf26028727bc01aa7651e43b43ec5866eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc0c7ade95d77d6745fe06b96d0fbf26028727bc01aa7651e43b43ec5866eda", kill_on_drop: false }`
[INFO] [stdout] 0bc0c7ade95d77d6745fe06b96d0fbf26028727bc01aa7651e43b43ec5866eda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 446c4d89e2e7a6a9b4c962476415c4ba698e4404f09935f72fe131a31db32cb2
[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" "446c4d89e2e7a6a9b4c962476415c4ba698e4404f09935f72fe131a31db32cb2", 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" "446c4d89e2e7a6a9b4c962476415c4ba698e4404f09935f72fe131a31db32cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446c4d89e2e7a6a9b4c962476415c4ba698e4404f09935f72fe131a31db32cb2", kill_on_drop: false }`
[INFO] [stdout] 446c4d89e2e7a6a9b4c962476415c4ba698e4404f09935f72fe131a31db32cb2