[INFO] fetching crate esl 0.17.1...
[INFO] documenting esl-0.17.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate esl 0.17.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate esl 0.17.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate esl 0.17.1
[INFO] finished tweaking crates.io crate esl 0.17.1
[INFO] tweaked toml for crates.io crate esl 0.17.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "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 enum-derive-2018 v2.0.1
[INFO] [stderr]   Downloaded phantom-type v0.4.2
[INFO] [stderr]   Downloaded serde-serialize-seed v0.0.9
[INFO] [stderr]   Downloaded utf8-chars v2.0.3
[INFO] [stderr]   Downloaded nameof v1.2.2
[INFO] [stderr]   Downloaded enumn v0.1.8
[INFO] [stderr]   Downloaded serde_tagged v0.2.0
[INFO] [stderr]   Downloaded macro-attr-2018 v2.1.2
[INFO] [stderr]   Downloaded iter-identify_first_last v0.0.1
[INFO] [stderr]   Downloaded nom-errors v0.0.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ae7d58c601c1a9d8123f83de297815aa1d54e695055e2cc029cbc57ee34ee7a
[INFO] running `Command { std: "docker" "start" "-a" "4ae7d58c601c1a9d8123f83de297815aa1d54e695055e2cc029cbc57ee34ee7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ae7d58c601c1a9d8123f83de297815aa1d54e695055e2cc029cbc57ee34ee7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae7d58c601c1a9d8123f83de297815aa1d54e695055e2cc029cbc57ee34ee7a", kill_on_drop: false }`
[INFO] [stdout] 4ae7d58c601c1a9d8123f83de297815aa1d54e695055e2cc029cbc57ee34ee7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5730135bc758834dcbc51eb52151ba439fdd32bf38d1bd7132118b1a7c5691a
[INFO] running `Command { std: "docker" "start" "-a" "b5730135bc758834dcbc51eb52151ba439fdd32bf38d1bd7132118b1a7c5691a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling erased-serde v0.3.25
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking utf8-chars v2.0.3
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling enumn v0.1.8
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking enum-derive-2018 v2.0.1
[INFO] [stderr]     Checking macro-attr-2018 v2.1.2
[INFO] [stderr]     Checking nameof v1.2.2
[INFO] [stderr]     Checking base64 v0.20.0
[INFO] [stderr]     Checking iter-identify_first_last v0.0.1
[INFO] [stderr]     Checking serde_tagged v0.2.0
[INFO] [stderr]     Checking nom-errors v0.0.12
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-errors-0.0.12/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nom-errors` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b5730135bc758834dcbc51eb52151ba439fdd32bf38d1bd7132118b1a7c5691a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5730135bc758834dcbc51eb52151ba439fdd32bf38d1bd7132118b1a7c5691a", kill_on_drop: false }`
[INFO] [stdout] b5730135bc758834dcbc51eb52151ba439fdd32bf38d1bd7132118b1a7c5691a
