[INFO] cloning repository https://github.com/tomc1998/rs-proc-gen-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomc1998/rs-proc-gen-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomc1998%2Frs-proc-gen-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomc1998%2Frs-proc-gen-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cda6dfbc593366a9f339dbaa9ca484f8d97326d2
[INFO] documenting tomc1998/rs-proc-gen-experiment 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%2Ftomc1998%2Frs-proc-gen-experiment" "/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/tomc1998/rs-proc-gen-experiment 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/tomc1998/rs-proc-gen-experiment
[INFO] finished tweaking git repo https://github.com/tomc1998/rs-proc-gen-experiment
[INFO] tweaked toml for git repo https://github.com/tomc1998/rs-proc-gen-experiment written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tomc1998/rs-proc-gen-experiment 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] 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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 760bffa80ec6ec3916c3dd8769cc0b728da57508360f07bf8844635a59598522
[INFO] running `Command { std: "docker" "start" "-a" "760bffa80ec6ec3916c3dd8769cc0b728da57508360f07bf8844635a59598522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "760bffa80ec6ec3916c3dd8769cc0b728da57508360f07bf8844635a59598522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "760bffa80ec6ec3916c3dd8769cc0b728da57508360f07bf8844635a59598522", kill_on_drop: false }`
[INFO] [stdout] 760bffa80ec6ec3916c3dd8769cc0b728da57508360f07bf8844635a59598522
[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" "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] 70df08b732a0f705ef44d15ae0440f2b055b5abc9d5258be580bcc4c94bc00be
[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" "70df08b732a0f705ef44d15ae0440f2b055b5abc9d5258be580bcc4c94bc00be", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking shared_library v0.1.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]    Compiling x11-dl v2.18.1
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking smallvec v0.6.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking approx v0.2.0
[INFO] [stderr]    Compiling shred-derive v0.5.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.16.0
[INFO] [stderr]    Compiling specs-derive v0.2.0
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking gfx_core v0.8.2
[INFO] [stderr]     Checking rusttype v0.6.2
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.20.10
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking shrev v1.0.1
[INFO] [stderr]     Checking wayland-commons v0.20.10
[INFO] [stderr]     Checking wayland-client v0.20.10
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking wayland-protocols v0.20.10
[INFO] [stderr]     Checking shred v0.7.0
[INFO] [stderr]     Checking hibitset v0.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.4
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking specs v0.12.0
[INFO] [stderr]     Checking winit v0.15.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking gfx_window_glutin v0.24.0
[INFO] [stderr]  Documenting proc-gen-experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta 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 `proc-gen-experiment`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name proc_gen_experiment 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 cgmath=/opt/rustwide/target/debug/deps/libcgmath-084c9775d400ae9f.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-53588ff8867846c2.rmeta --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-bab0939a4791c400.so --extern gfx=/opt/rustwide/target/debug/deps/libgfx-e5de9e28d95310df.rmeta --extern gfx_device_gl=/opt/rustwide/target/debug/deps/libgfx_device_gl-61ce7c211a57b678.rmeta --extern gfx_gl=/opt/rustwide/target/debug/deps/libgfx_gl-f2b8febedeae4a99.rmeta --extern gfx_window_glutin=/opt/rustwide/target/debug/deps/libgfx_window_glutin-35afd3bd25bbc375.rmeta --extern glutin=/opt/rustwide/target/debug/deps/libglutin-aa66c96d1a3fa6a5.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-21847fea403d0b77.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9100e2b9f31ab036.rmeta --extern num_integer=/opt/rustwide/target/debug/deps/libnum_integer-2cd87b0e38a1738e.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e7a5ff2fc1e19430.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-6f6263f70da00dc8.rmeta --extern rusttype=/opt/rustwide/target/debug/deps/librusttype-d47692541156e9c8.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-939f3c816c1daae8.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-74adc1696cc3f666.so --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-d1473b746194c286.rmeta --extern specs=/opt/rustwide/target/debug/deps/libspecs-e67b6d505ba708c6.rmeta --extern specs_derive=/opt/rustwide/target/debug/deps/libspecs_derive-47ae549f1e5305cd.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "70df08b732a0f705ef44d15ae0440f2b055b5abc9d5258be580bcc4c94bc00be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70df08b732a0f705ef44d15ae0440f2b055b5abc9d5258be580bcc4c94bc00be", kill_on_drop: false }`
[INFO] [stdout] 70df08b732a0f705ef44d15ae0440f2b055b5abc9d5258be580bcc4c94bc00be
