[INFO] cloning repository https://github.com/andresilva/rust-okasaki
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andresilva/rust-okasaki" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandresilva%2Frust-okasaki", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandresilva%2Frust-okasaki'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da0f298d49be46ba9899f78944ec2b0fbbf64885
[INFO] documenting andresilva/rust-okasaki 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%2Fandresilva%2Frust-okasaki" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andresilva/rust-okasaki 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/andresilva/rust-okasaki
[INFO] finished tweaking git repo https://github.com/andresilva/rust-okasaki
[INFO] tweaked toml for git repo https://github.com/andresilva/rust-okasaki written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/andresilva/rust-okasaki 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 89f48b68a72718cd647362417d0ce0b08b1d5aa68c693911f676b92527cf9fa5
[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" "89f48b68a72718cd647362417d0ce0b08b1d5aa68c693911f676b92527cf9fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89f48b68a72718cd647362417d0ce0b08b1d5aa68c693911f676b92527cf9fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89f48b68a72718cd647362417d0ce0b08b1d5aa68c693911f676b92527cf9fa5", kill_on_drop: false }`
[INFO] [stdout] 89f48b68a72718cd647362417d0ce0b08b1d5aa68c693911f676b92527cf9fa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] cd73884f3c9f6020b698f9a2d8ed738e1dcb1042d10b3c8afa3be99202442c5f
[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" "cd73884f3c9f6020b698f9a2d8ed738e1dcb1042d10b3c8afa3be99202442c5f", kill_on_drop: false }`
[INFO] [stderr]  Documenting okasaki v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::num::Int`
[INFO] [stdout]  --> src/tree.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::num::Int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ no `Int` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::num::Float`
[INFO] [stdout]  --> src/tree_layout.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `Float` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `okasaki`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name okasaki src/lib.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] running `Command { std: "docker" "inspect" "cd73884f3c9f6020b698f9a2d8ed738e1dcb1042d10b3c8afa3be99202442c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd73884f3c9f6020b698f9a2d8ed738e1dcb1042d10b3c8afa3be99202442c5f", kill_on_drop: false }`
[INFO] [stdout] cd73884f3c9f6020b698f9a2d8ed738e1dcb1042d10b3c8afa3be99202442c5f