[INFO] cloning repository https://github.com/zesterer/zte
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zesterer/zte" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Fzte", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Fzte'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 900902d41ce379771b4e32ae9dfd7a6a086c1845
[INFO] documenting zesterer/zte against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Fzte" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zesterer/zte 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 git repo https://github.com/zesterer/zte
[INFO] finished tweaking git repo https://github.com/zesterer/zte
[INFO] tweaked toml for git repo https://github.com/zesterer/zte written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/zesterer/zte already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 5fdfacff5ee3ba3178f8ad0379f62f8568e25fffbfcb3f457b74d39bf93ae6b0
[INFO] running `Command { std: "docker" "start" "-a" "5fdfacff5ee3ba3178f8ad0379f62f8568e25fffbfcb3f457b74d39bf93ae6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fdfacff5ee3ba3178f8ad0379f62f8568e25fffbfcb3f457b74d39bf93ae6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fdfacff5ee3ba3178f8ad0379f62f8568e25fffbfcb3f457b74d39bf93ae6b0", kill_on_drop: false }`
[INFO] [stdout] 5fdfacff5ee3ba3178f8ad0379f62f8568e25fffbfcb3f457b74d39bf93ae6b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 3a4e471102dbc05b2f262eb1ac30accbb6c328e755e833640dee92fd891d76f4
[INFO] running `Command { std: "docker" "start" "-a" "3a4e471102dbc05b2f262eb1ac30accbb6c328e755e833640dee92fd891d76f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]    Compiling vek v0.9.8
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking simple-logging v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking directories v2.0.1
[INFO] [stderr]     Checking vte v0.8.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]  Documenting zte v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults, or_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `zte`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name zte src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-08c0a36aad897cc5.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-cbe434d65a2e251c.rmeta --extern config=/opt/rustwide/target/debug/deps/libconfig-2f4ba19849a6dc67.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-e85fda6198400cd0.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7a342a7b267c2dfd.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-c701d8a3a4449cae.rmeta --extern number_prefix=/opt/rustwide/target/debug/deps/libnumber_prefix-33ed507fe0232e53.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-145bb8dbdae9be86.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-0bbc84148b740937.so --extern simple_logging=/opt/rustwide/target/debug/deps/libsimple_logging-2d30fbe4044b0f49.rmeta --extern termion=/opt/rustwide/target/debug/deps/libtermion-81440b787f04e760.rmeta --extern vek=/opt/rustwide/target/debug/deps/libvek-708f312100aef05c.rmeta --extern vte=/opt/rustwide/target/debug/deps/libvte-1b795198ddfc54fe.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3a4e471102dbc05b2f262eb1ac30accbb6c328e755e833640dee92fd891d76f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a4e471102dbc05b2f262eb1ac30accbb6c328e755e833640dee92fd891d76f4", kill_on_drop: false }`
[INFO] [stdout] 3a4e471102dbc05b2f262eb1ac30accbb6c328e755e833640dee92fd891d76f4
