[INFO] cloning repository https://github.com/zann1999/RUST-task
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zann1999/RUST-task" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzann1999%2FRUST-task", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzann1999%2FRUST-task'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be85055c2c5892a1b86cff3ffea1b09cfe9203c8
[INFO] documenting zann1999/RUST-task against try#a394c9cd9ec93787f09a7ac445b14cc674a94549 for pr-151918
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzann1999%2FRUST-task" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zann1999/RUST-task
[INFO] finished tweaking git repo https://github.com/zann1999/RUST-task
[INFO] tweaked toml for git repo https://github.com/zann1999/RUST-task written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zann1999/RUST-task on toolchain a394c9cd9ec93787f09a7ac445b14cc674a94549
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zann1999/RUST-task already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c5b492211f1777c07a571c3d31fae9fd63266f4cf623fee3c883cbc55eb683b
[INFO] running `Command { std: "docker" "start" "-a" "1c5b492211f1777c07a571c3d31fae9fd63266f4cf623fee3c883cbc55eb683b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c5b492211f1777c07a571c3d31fae9fd63266f4cf623fee3c883cbc55eb683b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c5b492211f1777c07a571c3d31fae9fd63266f4cf623fee3c883cbc55eb683b", kill_on_drop: false }`
[INFO] [stdout] 1c5b492211f1777c07a571c3d31fae9fd63266f4cf623fee3c883cbc55eb683b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08f6b92a2d53bf5d2a61c7a8f0109a83b4a8d975f04264858bdc6f626f07b064
[INFO] running `Command { std: "docker" "start" "-a" "08f6b92a2d53bf5d2a61c7a8f0109a83b4a8d975f04264858bdc6f626f07b064", kill_on_drop: false }`
[INFO] [stderr]  Documenting basic-of-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/basic_of_rust/index.html
[INFO] running `Command { std: "docker" "inspect" "08f6b92a2d53bf5d2a61c7a8f0109a83b4a8d975f04264858bdc6f626f07b064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f6b92a2d53bf5d2a61c7a8f0109a83b4a8d975f04264858bdc6f626f07b064", kill_on_drop: false }`
[INFO] [stdout] 08f6b92a2d53bf5d2a61c7a8f0109a83b4a8d975f04264858bdc6f626f07b064
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc487419157e86689b554a62d3789be7ba3683ea1cc3b15f382f6a5e11fb4f87
[INFO] running `Command { std: "docker" "start" "-a" "bc487419157e86689b554a62d3789be7ba3683ea1cc3b15f382f6a5e11fb4f87", kill_on_drop: false }`
[INFO] [stderr]  Documenting basic-of-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/basic_of_rust/index.html
[INFO] running `Command { std: "docker" "inspect" "bc487419157e86689b554a62d3789be7ba3683ea1cc3b15f382f6a5e11fb4f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc487419157e86689b554a62d3789be7ba3683ea1cc3b15f382f6a5e11fb4f87", kill_on_drop: false }`
[INFO] [stdout] bc487419157e86689b554a62d3789be7ba3683ea1cc3b15f382f6a5e11fb4f87