[INFO] fetching crate must-implement-trait 0.1.0...
[INFO] documenting must-implement-trait-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate must-implement-trait 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate must-implement-trait 0.1.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate must-implement-trait 0.1.0
[INFO] finished tweaking crates.io crate must-implement-trait 0.1.0
[INFO] tweaked toml for crates.io crate must-implement-trait 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate must-implement-trait 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be13ea89e3984535aa424c446c6e397ee4dc1387c9bf9b8a8c9d8920a04937e5
[INFO] running `Command { std: "docker" "start" "-a" "be13ea89e3984535aa424c446c6e397ee4dc1387c9bf9b8a8c9d8920a04937e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be13ea89e3984535aa424c446c6e397ee4dc1387c9bf9b8a8c9d8920a04937e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be13ea89e3984535aa424c446c6e397ee4dc1387c9bf9b8a8c9d8920a04937e5", kill_on_drop: false }`
[INFO] [stdout] be13ea89e3984535aa424c446c6e397ee4dc1387c9bf9b8a8c9d8920a04937e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e444e9ebd2f05d8f5530c649bc1c63c9b61fda34021c14d5165a0eac21fd85f0
[INFO] running `Command { std: "docker" "start" "-a" "e444e9ebd2f05d8f5530c649bc1c63c9b61fda34021c14d5165a0eac21fd85f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]  Documenting must-implement-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.77s
[INFO] running `Command { std: "docker" "inspect" "e444e9ebd2f05d8f5530c649bc1c63c9b61fda34021c14d5165a0eac21fd85f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e444e9ebd2f05d8f5530c649bc1c63c9b61fda34021c14d5165a0eac21fd85f0", kill_on_drop: false }`
[INFO] [stdout] e444e9ebd2f05d8f5530c649bc1c63c9b61fda34021c14d5165a0eac21fd85f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 0bbb25fc4c2d25496b0679545bb5e63b227a083589aea6e47b31a1eeb442336c
[INFO] running `Command { std: "docker" "start" "-a" "0bbb25fc4c2d25496b0679545bb5e63b227a083589aea6e47b31a1eeb442336c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]  Documenting must-implement-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "0bbb25fc4c2d25496b0679545bb5e63b227a083589aea6e47b31a1eeb442336c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bbb25fc4c2d25496b0679545bb5e63b227a083589aea6e47b31a1eeb442336c", kill_on_drop: false }`
[INFO] [stdout] 0bbb25fc4c2d25496b0679545bb5e63b227a083589aea6e47b31a1eeb442336c