[INFO] cloning repository https://github.com/Arekkusuva/try-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Arekkusuva/try-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArekkusuva%2Ftry-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArekkusuva%2Ftry-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 453065a21eca81b37b0511d5558c30272c961d5c
[INFO] documenting Arekkusuva/try-rust against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArekkusuva%2Ftry-rust" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Arekkusuva/try-rust on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Arekkusuva/try-rust
[INFO] finished tweaking git repo https://github.com/Arekkusuva/try-rust
[INFO] tweaked toml for git repo https://github.com/Arekkusuva/try-rust written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate git repo https://github.com/Arekkusuva/try-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 895866122fae84e6e728fa11dc526a0a0c1c4d96cd87d6f85c98acd9fd1ee514
[INFO] running `Command { std: "docker" "start" "-a" "895866122fae84e6e728fa11dc526a0a0c1c4d96cd87d6f85c98acd9fd1ee514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "895866122fae84e6e728fa11dc526a0a0c1c4d96cd87d6f85c98acd9fd1ee514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "895866122fae84e6e728fa11dc526a0a0c1c4d96cd87d6f85c98acd9fd1ee514", kill_on_drop: false }`
[INFO] [stdout] 895866122fae84e6e728fa11dc526a0a0c1c4d96cd87d6f85c98acd9fd1ee514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fb473dc126a4a463b4b726df8db7407e13cfba99a76bd7902da6250ff10c0b2
[INFO] running `Command { std: "docker" "start" "-a" "2fb473dc126a4a463b4b726df8db7407e13cfba99a76bd7902da6250ff10c0b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking serde v1.0.39
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.39
[INFO] [stderr]     Checking serde_json v1.0.15
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking serde-value v0.5.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking log4rs v0.8.0
[INFO] [stderr]  Documenting zoma v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.04s
[INFO] running `Command { std: "docker" "inspect" "2fb473dc126a4a463b4b726df8db7407e13cfba99a76bd7902da6250ff10c0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb473dc126a4a463b4b726df8db7407e13cfba99a76bd7902da6250ff10c0b2", kill_on_drop: false }`
[INFO] [stdout] 2fb473dc126a4a463b4b726df8db7407e13cfba99a76bd7902da6250ff10c0b2