[INFO] cloning repository https://github.com/cb372/look_over_there
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cb372/look_over_there" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcb372%2Flook_over_there", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcb372%2Flook_over_there'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 717451460b3f2be14b2e4b2451f748a8e4952bfa
[INFO] documenting cb372/look_over_there against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcb372%2Flook_over_there" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cb372/look_over_there on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cb372/look_over_there
[INFO] finished tweaking git repo https://github.com/cb372/look_over_there
[INFO] tweaked toml for git repo https://github.com/cb372/look_over_there written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cb372/look_over_there already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `/workspace/builds/worker-4/source/src/look-over-there.rs` was erroneously implicitly accepted for binary `look-over-there`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-08-29" "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] c36f07dbc6f7636f30b70ba633860dd78c19dbe99cf575643b63d3c81ac7dbd7
[INFO] running `Command { std: "docker" "start" "-a" "c36f07dbc6f7636f30b70ba633860dd78c19dbe99cf575643b63d3c81ac7dbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c36f07dbc6f7636f30b70ba633860dd78c19dbe99cf575643b63d3c81ac7dbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c36f07dbc6f7636f30b70ba633860dd78c19dbe99cf575643b63d3c81ac7dbd7", kill_on_drop: false }`
[INFO] [stdout] c36f07dbc6f7636f30b70ba633860dd78c19dbe99cf575643b63d3c81ac7dbd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d14f279b16d71ae9c3eee4df3365a5915c1ee9ce73b15667147277e0574792cb
[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" "d14f279b16d71ae9c3eee4df3365a5915c1ee9ce73b15667147277e0574792cb", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/look-over-there.rs` was erroneously implicitly accepted for binary `look-over-there`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]  Documenting look-over-there v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::rand`
[INFO] [stdout]   --> src/look-over-there.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use std::rand;
[INFO] [stdout]    |         ^^^^^^^^^ no `rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `look-over-there`.
[INFO] [stdout] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stdout]   --> src/look-over-there.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |     impl fmt::Show for Direction {
[INFO] [stdout]    |               ^^^^ not found in `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name look_over_there src/look-over-there.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] [stdout] Some errors have detailed explanations: E0405, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d14f279b16d71ae9c3eee4df3365a5915c1ee9ce73b15667147277e0574792cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14f279b16d71ae9c3eee4df3365a5915c1ee9ce73b15667147277e0574792cb", kill_on_drop: false }`
[INFO] [stdout] d14f279b16d71ae9c3eee4df3365a5915c1ee9ce73b15667147277e0574792cb