[INFO] fetching crate probs 0.3.1...
[INFO] documenting probs-0.3.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate probs 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate probs 0.3.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate probs 0.3.1
[INFO] finished tweaking crates.io crate probs 0.3.1
[INFO] tweaked toml for crates.io crate probs 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nalgebra-macros v0.1.0
[INFO] [stderr]   Downloaded approx v0.5.1
[INFO] [stderr]   Downloaded nshare v0.9.0
[INFO] [stderr]   Downloaded matrixmultiply v0.3.2
[INFO] [stderr]   Downloaded ndarray v0.15.4
[INFO] [stderr]   Downloaded tqdm v0.3.1
[INFO] [stderr]   Downloaded wide v0.7.4
[INFO] [stderr]   Downloaded simba v0.7.1
[INFO] [stderr]   Downloaded nalgebra v0.30.1
[INFO] [stderr]   Downloaded safe_arch v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 3327af6c2637c52ad26160322e49379b33bb3806ce5982c21c335b9dc8430222
[INFO] running `Command { std: "docker" "start" "-a" "3327af6c2637c52ad26160322e49379b33bb3806ce5982c21c335b9dc8430222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3327af6c2637c52ad26160322e49379b33bb3806ce5982c21c335b9dc8430222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3327af6c2637c52ad26160322e49379b33bb3806ce5982c21c335b9dc8430222", kill_on_drop: false }`
[INFO] [stdout] 3327af6c2637c52ad26160322e49379b33bb3806ce5982c21c335b9dc8430222
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 8c3f93db98653532b07a1c7c92ad40dae9a1f6f9f03aef48e905b66a86f9e106
[INFO] running `Command { std: "docker" "start" "-a" "8c3f93db98653532b07a1c7c92ad40dae9a1f6f9f03aef48e905b66a86f9e106", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking wide v0.7.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking tqdm v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking simba v0.7.1
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking image v0.24.2
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking nalgebra v0.30.1
[INFO] [stderr]     Checking nshare v0.9.0
[INFO] [stderr]  Documenting probs v0.3.1 (/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(generic_associated_types)]
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `probs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name probs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7f5e167aa257bee6 -L dependency=/opt/rustwide/target/debug/deps --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-5548afbf9d6a1803.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-a57d1926948d4d8c.rmeta --extern nshare=/opt/rustwide/target/debug/deps/libnshare-b65079a0acfb799f.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-af92fa5ec46219f7.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-efb7a43670652d5c.rmeta --extern tqdm=/opt/rustwide/target/debug/deps/libtqdm-58f9a2116ec2e19f.rmeta --cap-lints=warn --crate-version 0.3.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8c3f93db98653532b07a1c7c92ad40dae9a1f6f9f03aef48e905b66a86f9e106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c3f93db98653532b07a1c7c92ad40dae9a1f6f9f03aef48e905b66a86f9e106", kill_on_drop: false }`
[INFO] [stdout] 8c3f93db98653532b07a1c7c92ad40dae9a1f6f9f03aef48e905b66a86f9e106