[INFO] cloning repository https://github.com/dirk/Mountain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dirk/Mountain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirk%2FMountain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirk%2FMountain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 964cc35268e8eb04f8c87adb429ad476e621cbaa
[INFO] documenting dirk/Mountain against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdirk%2FMountain" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dirk/Mountain on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dirk/Mountain
[INFO] finished tweaking git repo https://github.com/dirk/Mountain
[INFO] tweaked toml for git repo https://github.com/dirk/Mountain written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dirk/Mountain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bdcb82697ae620332ef69790cf2fc88022f7c86e45fc064679cb05ecbc680da
[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" "6bdcb82697ae620332ef69790cf2fc88022f7c86e45fc064679cb05ecbc680da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bdcb82697ae620332ef69790cf2fc88022f7c86e45fc064679cb05ecbc680da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdcb82697ae620332ef69790cf2fc88022f7c86e45fc064679cb05ecbc680da", kill_on_drop: false }`
[INFO] [stdout] 6bdcb82697ae620332ef69790cf2fc88022f7c86e45fc064679cb05ecbc680da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTDOCFLAGS=--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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] aa85b1c7fc62e7c16345be0eebcd8f47ec83812c22eb5370ff2ef88beef6c815
[INFO] running `Command { std: "docker" "start" "-a" "aa85b1c7fc62e7c16345be0eebcd8f47ec83812c22eb5370ff2ef88beef6c815", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]    Compiling cmake v0.1.20
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.3
[INFO] [stderr]     Checking freetype v0.1.3 (https://github.com/servo/rust-freetype?rev=26c523b#26c523bf)
[INFO] [stderr]  Documenting mntn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `objc`
[INFO] [stdout]  --> src/main.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use] extern crate objc;
[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 document `mntn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name mntn src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-7b166d865caadbac.rmeta --extern freetype=/opt/rustwide/target/debug/deps/libfreetype-4979d52e89d2d074.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-00f33a833df8af71.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "aa85b1c7fc62e7c16345be0eebcd8f47ec83812c22eb5370ff2ef88beef6c815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa85b1c7fc62e7c16345be0eebcd8f47ec83812c22eb5370ff2ef88beef6c815", kill_on_drop: false }`
[INFO] [stdout] aa85b1c7fc62e7c16345be0eebcd8f47ec83812c22eb5370ff2ef88beef6c815