[INFO] fetching crate cargo-docco 0.1.0...
[INFO] checking cargo-docco-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate cargo-docco 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cargo-docco 0.1.0
[INFO] finished tweaking crates.io crate cargo-docco 0.1.0
[INFO] tweaked toml for crates.io crate cargo-docco 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-docco 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-docco 0.1.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ramhorns-derive v0.10.2
[INFO] [stderr]   Downloaded thiserror-impl v1.0.21
[INFO] [stderr]   Downloaded rocco v0.1.0
[INFO] [stderr]   Downloaded const-random v0.1.11
[INFO] [stderr]   Downloaded const-random-macro v0.1.11
[INFO] [stderr]   Downloaded ramhorns v0.10.2
[INFO] [stderr]   Downloaded logos v0.11.4
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded structopt-derive v0.4.13
[INFO] [stderr]   Downloaded shell-words v1.0.0
[INFO] [stderr]   Downloaded beef v0.4.4
[INFO] [stderr]   Downloaded twoway v0.2.1
[INFO] [stderr]   Downloaded getrandom v0.2.0
[INFO] [stderr]   Downloaded logos-derive v0.11.5
[INFO] [stderr]   Downloaded thiserror v1.0.21
[INFO] [stderr]   Downloaded anyhow v1.0.33
[INFO] [stderr]   Downloaded comrak v0.8.2
[INFO] [stderr]   Downloaded structopt v0.3.20
[INFO] [stderr]   Downloaded aho-corasick v0.7.14
[INFO] [stderr]   Downloaded syn v1.0.45
[INFO] [stderr]   Downloaded regex v1.4.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.20
[INFO] [stderr]   Downloaded libc v0.2.79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ced8a303c37937073e5066a6d12adbec0c54e20640167de2a3cd098429cc9e8
[INFO] running `Command { std: "docker" "start" "-a" "7ced8a303c37937073e5066a6d12adbec0c54e20640167de2a3cd098429cc9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ced8a303c37937073e5066a6d12adbec0c54e20640167de2a3cd098429cc9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ced8a303c37937073e5066a6d12adbec0c54e20640167de2a3cd098429cc9e8", kill_on_drop: false }`
[INFO] [stdout] 7ced8a303c37937073e5066a6d12adbec0c54e20640167de2a3cd098429cc9e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cd446adb3cb9ba5561f5c30f1dbf211e7f0cd0e0c014009fa7820abc7fc007d
[INFO] running `Command { std: "docker" "start" "-a" "1cd446adb3cb9ba5561f5c30f1dbf211e7f0cd0e0c014009fa7820abc7fc007d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking const-random v0.1.11
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling ramhorns-derive v0.10.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]     Checking comrak v0.8.2
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking ramhorns v0.10.2
[INFO] [stderr]     Checking rocco v0.1.0
[INFO] [stderr]     Checking cargo-docco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.18s
[INFO] running `Command { std: "docker" "inspect" "1cd446adb3cb9ba5561f5c30f1dbf211e7f0cd0e0c014009fa7820abc7fc007d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd446adb3cb9ba5561f5c30f1dbf211e7f0cd0e0c014009fa7820abc7fc007d", kill_on_drop: false }`
[INFO] [stdout] 1cd446adb3cb9ba5561f5c30f1dbf211e7f0cd0e0c014009fa7820abc7fc007d