[INFO] fetching crate truncnorm 0.1.0...
[INFO] documenting truncnorm-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate truncnorm 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate truncnorm 0.1.0 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 crates.io crate truncnorm 0.1.0
[INFO] finished tweaking crates.io crate truncnorm 0.1.0
[INFO] tweaked toml for crates.io crate truncnorm 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 2f9eda60d454fe14a844b483df75fc9235732dcf7457a59898623743ba773ef1
[INFO] running `Command { std: "docker" "start" "-a" "2f9eda60d454fe14a844b483df75fc9235732dcf7457a59898623743ba773ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f9eda60d454fe14a844b483df75fc9235732dcf7457a59898623743ba773ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9eda60d454fe14a844b483df75fc9235732dcf7457a59898623743ba773ef1", kill_on_drop: false }`
[INFO] [stdout] 2f9eda60d454fe14a844b483df75fc9235732dcf7457a59898623743ba773ef1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 37ee97afa02bdf44981d79d7fb4fbaa83bd638df2de64e6a70b0075890adc44e
[INFO] running `Command { std: "docker" "start" "-a" "37ee97afa02bdf44981d79d7fb4fbaa83bd638df2de64e6a70b0075890adc44e", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking lapack-sys v0.12.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling levenberg-marquardt v0.8.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking rand_distr v0.4.1
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking simba v0.4.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking ndarray v0.15.3
[INFO] [stderr]     Checking simba v0.5.1
[INFO] [stderr]     Checking lapack v0.18.0
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking nalgebra v0.25.4
[INFO] [stderr]     Checking lax v0.2.0
[INFO] [stderr]    Compiling truncnorm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ndarray-linalg v0.14.0
[INFO] [stderr]     Checking ndarray-stats v0.5.0
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking nalgebra v0.27.1
[INFO] [stderr]     Checking statrs v0.15.0
[INFO] [stderr]  Documenting truncnorm 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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(destructuring_assignment)]
[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 `truncnorm`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name truncnorm 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 levenberg_marquardt=/opt/rustwide/target/debug/deps/liblevenberg_marquardt-3cdcae33e5618b67.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-f766dff54f768571.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-ce41f7fb087bf102.rmeta --extern ndarray_linalg=/opt/rustwide/target/debug/deps/libndarray_linalg-eeeeaa68da445762.rmeta --extern ndarray_rand=/opt/rustwide/target/debug/deps/libndarray_rand-df1e91ea5a0db3c1.rmeta --extern ndarray_stats=/opt/rustwide/target/debug/deps/libndarray_stats-ffc2892e073d3aa8.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-99f4e2dfb360fd0e.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-ed545d47297166e9.rmeta --extern statrs=/opt/rustwide/target/debug/deps/libstatrs-b132ad09e1e441ba.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "37ee97afa02bdf44981d79d7fb4fbaa83bd638df2de64e6a70b0075890adc44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ee97afa02bdf44981d79d7fb4fbaa83bd638df2de64e6a70b0075890adc44e", kill_on_drop: false }`
[INFO] [stdout] 37ee97afa02bdf44981d79d7fb4fbaa83bd638df2de64e6a70b0075890adc44e
