[INFO] cloning repository https://github.com/SpaceEraser/honours_implementation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SpaceEraser/honours_implementation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpaceEraser%2Fhonours_implementation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpaceEraser%2Fhonours_implementation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 677a8891dc3246c26d42eb554af382ba20fff912
[INFO] documenting SpaceEraser/honours_implementation against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpaceEraser%2Fhonours_implementation" "/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/SpaceEraser/honours_implementation on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/.cargo/config
[INFO] started tweaking git repo https://github.com/SpaceEraser/honours_implementation
[INFO] finished tweaking git repo https://github.com/SpaceEraser/honours_implementation
[INFO] tweaked toml for git repo https://github.com/SpaceEraser/honours_implementation written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/SpaceEraser/honours_implementation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simba v0.1.2
[INFO] [stderr]   Downloaded ref_thread_local v0.0.0
[INFO] [stderr]   Downloaded delaunator v0.2.0
[INFO] [stderr]   Downloaded nalgebra v0.21.0
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2066255be1171619401085ba6882b469070ceeec9726cf433478c4ed90061e6e
[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" "2066255be1171619401085ba6882b469070ceeec9726cf433478c4ed90061e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2066255be1171619401085ba6882b469070ceeec9726cf433478c4ed90061e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2066255be1171619401085ba6882b469070ceeec9726cf433478c4ed90061e6e", kill_on_drop: false }`
[INFO] [stdout] 2066255be1171619401085ba6882b469070ceeec9726cf433478c4ed90061e6e
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 058b3eafb918791e4487cfdd551f42878cd08d98429fc6a398fe60efaf46447f
[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" "058b3eafb918791e4487cfdd551f42878cd08d98429fc6a398fe60efaf46447f", 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]     Checking ref_thread_local v0.0.0
[INFO] [stderr]     Checking delaunator v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling paste-impl v0.1.10
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking paste v0.1.10
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking simba v0.1.2
[INFO] [stderr]     Checking nalgebra v0.21.0
[INFO] [stderr]     Checking honours_implementation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting honours_implementation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_into_raw_non_null)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_into_raw_non_null)]
[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 `honours_implementation`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name honours_implementation 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 approx=/opt/rustwide/target/debug/deps/libapprox-6e23abd513b145f6.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-99a5c292bc223243.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-1d11686e5609488c.rmeta --extern delaunator=/opt/rustwide/target/debug/deps/libdelaunator-01014d68d292402f.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-9b4c3c8ba22d4f89.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-e286309099f1ec89.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-792dd1c8a23e2647.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-289640479be48acd.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-f3dbe61531c275ea.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-34f99421c670c4e0.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-22047740af4f7283.rmeta --extern ref_thread_local=/opt/rustwide/target/debug/deps/libref_thread_local-fc8fb38a1d572a7e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-2ae9cd59edec41aa.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-27f3229cf447c600.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "058b3eafb918791e4487cfdd551f42878cd08d98429fc6a398fe60efaf46447f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "058b3eafb918791e4487cfdd551f42878cd08d98429fc6a398fe60efaf46447f", kill_on_drop: false }`
[INFO] [stdout] 058b3eafb918791e4487cfdd551f42878cd08d98429fc6a398fe60efaf46447f