[INFO] fetching crate compress_history 0.1.4...
[INFO] documenting compress_history-0.1.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate compress_history 0.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate compress_history 0.1.4 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 crates.io crate compress_history 0.1.4
[INFO] finished tweaking crates.io crate compress_history 0.1.4
[INFO] tweaked toml for crates.io crate compress_history 0.1.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate compress_history 0.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 74b39a3901f8749f4abaaecc36fba4a41a70ea37c16d091541f591b1a6aca27c
[INFO] running `Command { std: "docker" "start" "-a" "74b39a3901f8749f4abaaecc36fba4a41a70ea37c16d091541f591b1a6aca27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74b39a3901f8749f4abaaecc36fba4a41a70ea37c16d091541f591b1a6aca27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b39a3901f8749f4abaaecc36fba4a41a70ea37c16d091541f591b1a6aca27c", kill_on_drop: false }`
[INFO] [stdout] 74b39a3901f8749f4abaaecc36fba4a41a70ea37c16d091541f591b1a6aca27c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ff6967878071f1c3486307d651bd5dc04feb524e1b7168d281a618de09084221
[INFO] running `Command { std: "docker" "start" "-a" "ff6967878071f1c3486307d651bd5dc04feb524e1b7168d281a618de09084221", kill_on_drop: false }`
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]  Documenting compress_history v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `Command { std: "docker" "inspect" "ff6967878071f1c3486307d651bd5dc04feb524e1b7168d281a618de09084221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6967878071f1c3486307d651bd5dc04feb524e1b7168d281a618de09084221", kill_on_drop: false }`
[INFO] [stdout] ff6967878071f1c3486307d651bd5dc04feb524e1b7168d281a618de09084221
