[INFO] fetching crate release-manager 0.1.4...
[INFO] documenting release-manager-0.1.4 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate release-manager 0.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate release-manager 0.1.4 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate release-manager 0.1.4
[INFO] finished tweaking crates.io crate release-manager 0.1.4
[INFO] tweaked toml for crates.io crate release-manager 0.1.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61c1b5cd8ac04a3449469228c8cb44b7c4cda8a801afa68e2530f9777c6f4502
[INFO] running `Command { std: "docker" "start" "-a" "61c1b5cd8ac04a3449469228c8cb44b7c4cda8a801afa68e2530f9777c6f4502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61c1b5cd8ac04a3449469228c8cb44b7c4cda8a801afa68e2530f9777c6f4502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61c1b5cd8ac04a3449469228c8cb44b7c4cda8a801afa68e2530f9777c6f4502", kill_on_drop: false }`
[INFO] [stdout] 61c1b5cd8ac04a3449469228c8cb44b7c4cda8a801afa68e2530f9777c6f4502
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f09846e579504f6654f66bdb16997ffc0a6cf1101a60a61ab8d25e677a29ed8a
[INFO] running `Command { std: "docker" "start" "-a" "f09846e579504f6654f66bdb16997ffc0a6cf1101a60a61ab8d25e677a29ed8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking podio v0.1.7
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.2.8
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking structopt v0.1.7
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]  Documenting release-manager v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(entry_and_modify)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(try_from)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `release-manager`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name release_manager src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-6fbe215a21784752.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f68758fa708db51a.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5678c1422d6b64cb.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-05e319b971c8ec6f.so --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-d42d1c34926f9bf6.rmeta --extern structopt_derive=/opt/rustwide/target/debug/deps/libstructopt_derive-eb963b4535df0758.so --extern toml=/opt/rustwide/target/debug/deps/libtoml-79040947bfa45480.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-c0fe0581f7b315ac.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-d312bade2d0195e8.rmeta --cap-lints=warn --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f09846e579504f6654f66bdb16997ffc0a6cf1101a60a61ab8d25e677a29ed8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09846e579504f6654f66bdb16997ffc0a6cf1101a60a61ab8d25e677a29ed8a", kill_on_drop: false }`
[INFO] [stdout] f09846e579504f6654f66bdb16997ffc0a6cf1101a60a61ab8d25e677a29ed8a
