[INFO] cloning repository https://github.com/mindriot101/gcodeparse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mindriot101/gcodeparse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindriot101%2Fgcodeparse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindriot101%2Fgcodeparse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce131cdd476a1aa195442d2ac268f2c0800be7b0
[INFO] documenting mindriot101/gcodeparse against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindriot101%2Fgcodeparse" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mindriot101/gcodeparse on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mindriot101/gcodeparse
[INFO] finished tweaking git repo https://github.com/mindriot101/gcodeparse
[INFO] tweaked toml for git repo https://github.com/mindriot101/gcodeparse written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mindriot101/gcodeparse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fdde8b5c7ebd28147f7f0c02584fbb8a14f5c03c2f276a99f98735597d2d394a
[INFO] running `Command { std: "docker" "start" "-a" "fdde8b5c7ebd28147f7f0c02584fbb8a14f5c03c2f276a99f98735597d2d394a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdde8b5c7ebd28147f7f0c02584fbb8a14f5c03c2f276a99f98735597d2d394a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdde8b5c7ebd28147f7f0c02584fbb8a14f5c03c2f276a99f98735597d2d394a", kill_on_drop: false }`
[INFO] [stdout] fdde8b5c7ebd28147f7f0c02584fbb8a14f5c03c2f276a99f98735597d2d394a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 35ffb537ea0a3bcaa0021f3004be197c52c0bd8d906c8e1c6c1ab789675758dd
[INFO] running `Command { std: "docker" "start" "-a" "35ffb537ea0a3bcaa0021f3004be197c52c0bd8d906c8e1c6c1ab789675758dd", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking serde v1.0.43
[INFO] [stderr]    Compiling proc-macro2 v0.3.7
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.43
[INFO] [stderr]     Checking csv v1.0.0-beta.5
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]  Documenting gcodeparse 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 `gcodeparse`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name gcodeparse 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 csv=/opt/rustwide/target/debug/deps/libcsv-5dcbd5d2b7e5eea4.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-e03a8af1d1ce7c38.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-49314d11522260e6.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-f7e7de0026ba1710.so --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "35ffb537ea0a3bcaa0021f3004be197c52c0bd8d906c8e1c6c1ab789675758dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ffb537ea0a3bcaa0021f3004be197c52c0bd8d906c8e1c6c1ab789675758dd", kill_on_drop: false }`
[INFO] [stdout] 35ffb537ea0a3bcaa0021f3004be197c52c0bd8d906c8e1c6c1ab789675758dd