[INFO] cloning repository https://github.com/mFrankowicz/rispreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mFrankowicz/rispreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmFrankowicz%2Frispreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmFrankowicz%2Frispreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 914babc836850d6c07755dfbd76f56bf3bfde0c1
[INFO] documenting mFrankowicz/rispreter against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmFrankowicz%2Frispreter" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mFrankowicz/rispreter on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mFrankowicz/rispreter
[INFO] finished tweaking git repo https://github.com/mFrankowicz/rispreter
[INFO] tweaked toml for git repo https://github.com/mFrankowicz/rispreter written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/mFrankowicz/rispreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrayvec v0.4.9
[INFO] [stderr]   Downloaded cc v1.0.26
[INFO] [stderr]   Downloaded terminfo v0.6.1
[INFO] [stderr]   Downloaded mortal v0.1.5
[INFO] [stderr]   Downloaded linefeed v0.5.4
[INFO] [stderr]   Downloaded smallstr v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df8be4e6d4fce5789d81f7d0e1dc0476d0367d1371d40233f685b14435acf81a
[INFO] running `Command { std: "docker" "start" "-a" "df8be4e6d4fce5789d81f7d0e1dc0476d0367d1371d40233f685b14435acf81a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df8be4e6d4fce5789d81f7d0e1dc0476d0367d1371d40233f685b14435acf81a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df8be4e6d4fce5789d81f7d0e1dc0476d0367d1371d40233f685b14435acf81a", kill_on_drop: false }`
[INFO] [stdout] df8be4e6d4fce5789d81f7d0e1dc0476d0367d1371d40233f685b14435acf81a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce35a49085e48edcd1f410bc04032db882f920c07d5aa3bc2f977fc0ff2f3c8c
[INFO] running `Command { std: "docker" "start" "-a" "ce35a49085e48edcd1f410bc04032db882f920c07d5aa3bc2f977fc0ff2f3c8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking phf_shared v0.7.23
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking rispreter-parser v0.1.0 (/opt/rustwide/workdir/rispreter-parser)
[INFO] [stderr]  Documenting rispreter-parser v0.1.0 (/opt/rustwide/workdir/rispreter-parser)
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]     Checking mortal v0.1.5
[INFO] [stderr]     Checking linefeed v0.5.4
[INFO] [stderr]     Checking rispreter-repl v0.0.6 (/opt/rustwide/workdir/rispreter-repl)
[INFO] [stderr]  Documenting rispreter-repl v0.0.6 (/opt/rustwide/workdir/rispreter-repl)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> rispreter-repl/src/bin/rispreter.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 `rispreter-repl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rispreter rispreter-repl/src/bin/rispreter.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-691f9f8187f1087f.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-1d4c5788c88be7dd.rmeta --extern linefeed=/opt/rustwide/target/debug/deps/liblinefeed-dffd1e4cce5696a4.rmeta --extern rispreter_parser=/opt/rustwide/target/debug/deps/librispreter_parser-691e58de089c634e.rmeta --extern rispreter_repl=/opt/rustwide/target/debug/deps/librispreter_repl-54c277c735eb9c20.rmeta --cap-lints=warn --crate-version 0.0.6` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ce35a49085e48edcd1f410bc04032db882f920c07d5aa3bc2f977fc0ff2f3c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce35a49085e48edcd1f410bc04032db882f920c07d5aa3bc2f977fc0ff2f3c8c", kill_on_drop: false }`
[INFO] [stdout] ce35a49085e48edcd1f410bc04032db882f920c07d5aa3bc2f977fc0ff2f3c8c
