[INFO] cloning repository https://github.com/desbma/firstname-chooser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/desbma/firstname-chooser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesbma%2Ffirstname-chooser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesbma%2Ffirstname-chooser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6244ed9fa884527b08ee56013ae351e22270ffd1
[INFO] documenting desbma/firstname-chooser 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%2Fdesbma%2Ffirstname-chooser" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/desbma/firstname-chooser 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/desbma/firstname-chooser
[INFO] finished tweaking git repo https://github.com/desbma/firstname-chooser
[INFO] tweaked toml for git repo https://github.com/desbma/firstname-chooser written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/desbma/firstname-chooser 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e2cea759b0a83736a072758100295f7a8ad5cf0e97ea1750b8cb51bb37fac691
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e2cea759b0a83736a072758100295f7a8ad5cf0e97ea1750b8cb51bb37fac691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2cea759b0a83736a072758100295f7a8ad5cf0e97ea1750b8cb51bb37fac691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2cea759b0a83736a072758100295f7a8ad5cf0e97ea1750b8cb51bb37fac691", kill_on_drop: false }`
[INFO] [stdout] e2cea759b0a83736a072758100295f7a8ad5cf0e97ea1750b8cb51bb37fac691
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 2137afe1ac08db3f0b1ebcc134530fabe5d64ef6c5c1b02b6aab0ad1f3068c25
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2137afe1ac08db3f0b1ebcc134530fabe5d64ef6c5c1b02b6aab0ad1f3068c25", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.3.2
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]     Checking decorum v0.3.1
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking dialoguer v0.8.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking simple_logger v1.12.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tokio v1.9.0
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking async-compression v0.3.8
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]  Documenting firstname-chooser 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(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[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 `firstname-chooser`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name firstname_chooser 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 anyhow=/opt/rustwide/target/debug/deps/libanyhow-c71486e08dde7454.rmeta --extern arg_enum_proc_macro=/opt/rustwide/target/debug/deps/libarg_enum_proc_macro-a6f7279a4b7038a5.so --extern console=/opt/rustwide/target/debug/deps/libconsole-3dcdafe4be5c6f1e.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-21953f50b6dc8835.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-4ce182d64634acab.rmeta --extern decorum=/opt/rustwide/target/debug/deps/libdecorum-16414196e392ef57.rmeta --extern dialoguer=/opt/rustwide/target/debug/deps/libdialoguer-f31c892e74429af9.rmeta --extern heck=/opt/rustwide/target/debug/deps/libheck-79fc0aac8572ec07.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-f5a74f37cd56a4c7.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-74a9ecb2cbac341a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f87d12041efa972b.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-3447830d0f7ec46a.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-4542bb366682d4a6.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-6c66f94322b42e8f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9b0b55ab8ad01fbb.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-82510b2a217f13e6.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-8357b30353f1c425.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-8c241be498e6b7be.rmeta --extern unidecode=/opt/rustwide/target/debug/deps/libunidecode-d815e782abe49832.rmeta --extern xdg=/opt/rustwide/target/debug/deps/libxdg-9532df82782d441c.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-17e3f16fd375d029.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2137afe1ac08db3f0b1ebcc134530fabe5d64ef6c5c1b02b6aab0ad1f3068c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2137afe1ac08db3f0b1ebcc134530fabe5d64ef6c5c1b02b6aab0ad1f3068c25", kill_on_drop: false }`
[INFO] [stdout] 2137afe1ac08db3f0b1ebcc134530fabe5d64ef6c5c1b02b6aab0ad1f3068c25
