[INFO] fetching crate expression-num 0.2.3...
[INFO] documenting expression-num-0.2.3 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate expression-num 0.2.3 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate expression-num 0.2.3 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 expression-num 0.2.3
[INFO] finished tweaking crates.io crate expression-num 0.2.3
[INFO] tweaked toml for crates.io crate expression-num 0.2.3 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded asexp v0.3.2
[INFO] [stderr]   Downloaded expression v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] b38c1fece5e6d6ffe47ba8ce1c51bd39a582485d02bd78faad6830c4a4b336d9
[INFO] running `Command { std: "docker" "start" "-a" "b38c1fece5e6d6ffe47ba8ce1c51bd39a582485d02bd78faad6830c4a4b336d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b38c1fece5e6d6ffe47ba8ce1c51bd39a582485d02bd78faad6830c4a4b336d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38c1fece5e6d6ffe47ba8ce1c51bd39a582485d02bd78faad6830c4a4b336d9", kill_on_drop: false }`
[INFO] [stdout] b38c1fece5e6d6ffe47ba8ce1c51bd39a582485d02bd78faad6830c4a4b336d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] d7b15352a5715bb3d34daaddc1dad63aefd3825b07f839c67ccef752666814ed
[INFO] running `Command { std: "docker" "start" "-a" "d7b15352a5715bb3d34daaddc1dad63aefd3825b07f839c67ccef752666814ed", kill_on_drop: false }`
[INFO] [stderr]     Checking asexp v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking expression v0.3.4
[INFO] [stderr]  Documenting expression-num v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
[INFO] running `Command { std: "docker" "inspect" "d7b15352a5715bb3d34daaddc1dad63aefd3825b07f839c67ccef752666814ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b15352a5715bb3d34daaddc1dad63aefd3825b07f839c67ccef752666814ed", kill_on_drop: false }`
[INFO] [stdout] d7b15352a5715bb3d34daaddc1dad63aefd3825b07f839c67ccef752666814ed
