[INFO] cloning repository https://github.com/AaronC81/tarn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AaronC81/tarn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronC81%2Ftarn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronC81%2Ftarn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dec742d9153258393f4e891d420d8c71af8a6b1d
[INFO] documenting AaronC81/tarn 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%2FAaronC81%2Ftarn" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AaronC81/tarn 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/AaronC81/tarn
[INFO] finished tweaking git repo https://github.com/AaronC81/tarn
[INFO] tweaked toml for git repo https://github.com/AaronC81/tarn written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/AaronC81/tarn 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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 5bd138be83df36cf3392df483d4aa5ed66e005ebfd0d90a45599048c776424be
[INFO] running `Command { std: "docker" "start" "-a" "5bd138be83df36cf3392df483d4aa5ed66e005ebfd0d90a45599048c776424be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bd138be83df36cf3392df483d4aa5ed66e005ebfd0d90a45599048c776424be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd138be83df36cf3392df483d4aa5ed66e005ebfd0d90a45599048c776424be", kill_on_drop: false }`
[INFO] [stdout] 5bd138be83df36cf3392df483d4aa5ed66e005ebfd0d90a45599048c776424be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] ab18f735f6845338950828019957e9d523155bb299903e5e01a1ea936ad63f7f
[INFO] running `Command { std: "docker" "start" "-a" "ab18f735f6845338950828019957e9d523155bb299903e5e01a1ea936ad63f7f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling peg-runtime v0.6.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling peg-macros v0.6.2
[INFO] [stderr]     Checking peg v0.6.2
[INFO] [stderr]  Documenting tarn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.54s
[INFO] running `Command { std: "docker" "inspect" "ab18f735f6845338950828019957e9d523155bb299903e5e01a1ea936ad63f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab18f735f6845338950828019957e9d523155bb299903e5e01a1ea936ad63f7f", kill_on_drop: false }`
[INFO] [stdout] ab18f735f6845338950828019957e9d523155bb299903e5e01a1ea936ad63f7f