[INFO] cloning repository https://github.com/palacaze/euler-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/palacaze/euler-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpalacaze%2Feuler-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpalacaze%2Feuler-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee87f7b9889cbdb7d6a94ffeea0229f3dffbe2a6
[INFO] documenting palacaze/euler-rs 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%2Fpalacaze%2Feuler-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/palacaze/euler-rs 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/palacaze/euler-rs
[INFO] finished tweaking git repo https://github.com/palacaze/euler-rs
[INFO] tweaked toml for git repo https://github.com/palacaze/euler-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/palacaze/euler-rs 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] ba2061518ac9f7e0f8235abadbe9a6aea542e60427c9d5c3629ffb726fc7d964
[INFO] running `Command { std: "docker" "start" "-a" "ba2061518ac9f7e0f8235abadbe9a6aea542e60427c9d5c3629ffb726fc7d964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba2061518ac9f7e0f8235abadbe9a6aea542e60427c9d5c3629ffb726fc7d964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2061518ac9f7e0f8235abadbe9a6aea542e60427c9d5c3629ffb726fc7d964", kill_on_drop: false }`
[INFO] [stdout] ba2061518ac9f7e0f8235abadbe9a6aea542e60427c9d5c3629ffb726fc7d964
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 2f87c453001382b9fa7be03b5863c7adb1016fc08b070e5123ecd9201c07417f
[INFO] running `Command { std: "docker" "start" "-a" "2f87c453001382b9fa7be03b5863c7adb1016fc08b070e5123ecd9201c07417f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]    Compiling ndarray v0.6.10
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking petgraph v0.2.10
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rulinalg v0.2.2
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rust-gmp v0.3.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rayon v0.4.3
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting euler 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(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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(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 `euler`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name euler 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 enum_primitive=/opt/rustwide/target/debug/deps/libenum_primitive-80aec4d59eb2e2fd.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-00771f26f035528c.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-e50a37770890e3b5.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-cb1dd6db9c9df99b.rmeta --extern permutohedron=/opt/rustwide/target/debug/deps/libpermutohedron-48138127f651de89.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-b6197fc9c08fe91e.rmeta --extern primal=/opt/rustwide/target/debug/deps/libprimal-ffaf831bb3af970d.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e0e61904ad123a50.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-48eaf371299f2fdb.rmeta --extern rulinalg=/opt/rustwide/target/debug/deps/librulinalg-edaa4aa72c38c3bb.rmeta --extern gmp=/opt/rustwide/target/debug/deps/libgmp-f2a96ac5e7cfda98.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-fb7a4770155e283f.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 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" "2f87c453001382b9fa7be03b5863c7adb1016fc08b070e5123ecd9201c07417f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f87c453001382b9fa7be03b5863c7adb1016fc08b070e5123ecd9201c07417f", kill_on_drop: false }`
[INFO] [stdout] 2f87c453001382b9fa7be03b5863c7adb1016fc08b070e5123ecd9201c07417f
