[INFO] cloning repository https://github.com/jonimake/MiniPLInterpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonimake/MiniPLInterpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonimake%2FMiniPLInterpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonimake%2FMiniPLInterpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e37ad3a280e2ed53f21c6175d583897b1cc096c
[INFO] documenting jonimake/MiniPLInterpreter 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%2Fjonimake%2FMiniPLInterpreter" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonimake/MiniPLInterpreter 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/jonimake/MiniPLInterpreter
[INFO] finished tweaking git repo https://github.com/jonimake/MiniPLInterpreter
[INFO] tweaked toml for git repo https://github.com/jonimake/MiniPLInterpreter written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/jonimake/MiniPLInterpreter 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 0b16f51cdae4aeedafdd4366fb4ba6986396f29cd3d4a7ad5d4680c35d18bb98
[INFO] running `Command { std: "docker" "start" "-a" "0b16f51cdae4aeedafdd4366fb4ba6986396f29cd3d4a7ad5d4680c35d18bb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b16f51cdae4aeedafdd4366fb4ba6986396f29cd3d4a7ad5d4680c35d18bb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b16f51cdae4aeedafdd4366fb4ba6986396f29cd3d4a7ad5d4680c35d18bb98", kill_on_drop: false }`
[INFO] [stdout] 0b16f51cdae4aeedafdd4366fb4ba6986396f29cd3d4a7ad5d4680c35d18bb98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] a841ce9e1e73589d233151e638f9c0464081a4890435fb486005b82d19bd35c8
[INFO] running `Command { std: "docker" "start" "-a" "a841ce9e1e73589d233151e638f9c0464081a4890435fb486005b82d19bd35c8", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking fern v0.4.4
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking clap v2.29.1
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]     Checking structopt v0.1.6
[INFO] [stderr]  Documenting mini_pli_interpreter 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(uniform_paths, tool_lints)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stdout]   = help: the feature `tool_lints` has been stable since 1.31.0 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 `mini_pli_interpreter`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name mini_pli_interpreter 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 clap=/opt/rustwide/target/debug/deps/libclap-2d1de0b03db84846.rmeta --extern fern=/opt/rustwide/target/debug/deps/libfern-b99bf3fb47145aaf.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-37b2b12a1bdcee34.rmeta --extern simplelog=/opt/rustwide/target/debug/deps/libsimplelog-d44e7910a3e3cd3f.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-fe775b67cc241bd7.rmeta --extern structopt_derive=/opt/rustwide/target/debug/deps/libstructopt_derive-eb963b4535df0758.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a841ce9e1e73589d233151e638f9c0464081a4890435fb486005b82d19bd35c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a841ce9e1e73589d233151e638f9c0464081a4890435fb486005b82d19bd35c8", kill_on_drop: false }`
[INFO] [stdout] a841ce9e1e73589d233151e638f9c0464081a4890435fb486005b82d19bd35c8
