[INFO] cloning repository https://github.com/ImpleLee/c4w
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ImpleLee/c4w" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImpleLee%2Fc4w", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImpleLee%2Fc4w'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ffc85d1d9a83b95842dc52c0490c4df1203d808
[INFO] documenting ImpleLee/c4w against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImpleLee%2Fc4w" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ImpleLee/c4w on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ImpleLee/c4w
[INFO] finished tweaking git repo https://github.com/ImpleLee/c4w
[INFO] tweaked toml for git repo https://github.com/ImpleLee/c4w written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/ImpleLee/c4w already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded average v0.13.1
[INFO] [stderr]   Downloaded float-ord v0.3.2
[INFO] [stderr]   Downloaded gcd v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03f1847dde28efb37723708e7128d4d2f083b71b3370b31d518ba5b03f443525
[INFO] running `Command { std: "docker" "start" "-a" "03f1847dde28efb37723708e7128d4d2f083b71b3370b31d518ba5b03f443525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03f1847dde28efb37723708e7128d4d2f083b71b3370b31d518ba5b03f443525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f1847dde28efb37723708e7128d4d2f083b71b3370b31d518ba5b03f443525", kill_on_drop: false }`
[INFO] [stdout] 03f1847dde28efb37723708e7128d4d2f083b71b3370b31d518ba5b03f443525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 833d390fb0ea191732f12546b7b8bf8218885c452398b5545d4cd5c9f9e4f4f4
[INFO] running `Command { std: "docker" "start" "-a" "833d390fb0ea191732f12546b7b8bf8218885c452398b5545d4cd5c9f9e4f4f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking gcd v2.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking easy-cast v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking average v0.13.1
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking dashmap v5.2.0
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]  Documenting c4w v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking c4w v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `StateProxy`
[INFO] [stdout]  --> src/printer/mod.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::states::{StateProxy, States};
[INFO] [stdout]   |                     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `average::Mean`
[INFO] [stdout]  --> src/printer/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use average::Mean;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/printer/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ordered_float::NotNan`
[INFO] [stdout]  --> src/printer/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ordered_float::NotNan;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude::*`
[INFO] [stdout]  --> src/printer/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `states`
[INFO] [stdout]   --> src/minimizer/mod.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   states: T,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state2num`
[INFO] [stdout]   --> src/minimizer/mod.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   state2num: Vec<usize>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.24s
[INFO] running `Command { std: "docker" "inspect" "833d390fb0ea191732f12546b7b8bf8218885c452398b5545d4cd5c9f9e4f4f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833d390fb0ea191732f12546b7b8bf8218885c452398b5545d4cd5c9f9e4f4f4", kill_on_drop: false }`
[INFO] [stdout] 833d390fb0ea191732f12546b7b8bf8218885c452398b5545d4cd5c9f9e4f4f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 3f97e4a51f35c4d350d725b379569a58957dd44e60010b410fb04f5665063db6
[INFO] running `Command { std: "docker" "start" "-a" "3f97e4a51f35c4d350d725b379569a58957dd44e60010b410fb04f5665063db6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking gcd v2.1.0
[INFO] [stderr]     Checking easy-cast v0.4.4
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking average v0.13.1
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking dashmap v5.2.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]  Documenting c4w v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.36s
[INFO] running `Command { std: "docker" "inspect" "3f97e4a51f35c4d350d725b379569a58957dd44e60010b410fb04f5665063db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f97e4a51f35c4d350d725b379569a58957dd44e60010b410fb04f5665063db6", kill_on_drop: false }`
[INFO] [stdout] 3f97e4a51f35c4d350d725b379569a58957dd44e60010b410fb04f5665063db6