[INFO] cloning repository https://github.com/supervitas/path-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/supervitas/path-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsupervitas%2Fpath-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsupervitas%2Fpath-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecc79a133b933a33ee41b37ab334af347292584e
[INFO] documenting supervitas/path-tracer 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%2Fsupervitas%2Fpath-tracer" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/supervitas/path-tracer 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/supervitas/path-tracer
[INFO] finished tweaking git repo https://github.com/supervitas/path-tracer
[INFO] tweaked toml for git repo https://github.com/supervitas/path-tracer written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/supervitas/path-tracer 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9c6becacc6e2b88556874d7a858aaddbf01d7dd827da1a8474bf4d2cbdf1146c
[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" "9c6becacc6e2b88556874d7a858aaddbf01d7dd827da1a8474bf4d2cbdf1146c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c6becacc6e2b88556874d7a858aaddbf01d7dd827da1a8474bf4d2cbdf1146c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c6becacc6e2b88556874d7a858aaddbf01d7dd827da1a8474bf4d2cbdf1146c", kill_on_drop: false }`
[INFO] [stdout] 9c6becacc6e2b88556874d7a858aaddbf01d7dd827da1a8474bf4d2cbdf1146c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] fe412aef470105061c4d92ace792d29558d6b937b3b2804167de15b08b914fb7
[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" "fe412aef470105061c4d92ace792d29558d6b937b3b2804167de15b08b914fb7", kill_on_drop: false }`
[INFO] [stderr]     Checking tobj v0.1.11
[INFO] [stderr]    Compiling num-integer v0.1.40
[INFO] [stderr]    Compiling num-iter v0.1.38
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking sdl2-sys v0.32.6
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl2 v0.32.2
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]  Documenting pathtracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(get_mut_unchecked)]
[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 `pathtracer`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name pathtracer src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern gl=/opt/rustwide/target/debug/deps/libgl-fa1b51c75ae2842e.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-46d5ca5b67207a15.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-eb3b602c98584351.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3e6a03066c386de9.rmeta --extern sdl2=/opt/rustwide/target/debug/deps/libsdl2-ae5fc00b4f0061b1.rmeta --extern tobj=/opt/rustwide/target/debug/deps/libtobj-6fba866cd8ca63ff.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "fe412aef470105061c4d92ace792d29558d6b937b3b2804167de15b08b914fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe412aef470105061c4d92ace792d29558d6b937b3b2804167de15b08b914fb7", kill_on_drop: false }`
[INFO] [stdout] fe412aef470105061c4d92ace792d29558d6b937b3b2804167de15b08b914fb7
