[INFO] cloning repository https://github.com/LDSLab/stoicheia
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LDSLab/stoicheia" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLDSLab%2Fstoicheia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLDSLab%2Fstoicheia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e6e6241639b419b7528232a8cb528c9985c7fb7d
[INFO] documenting LDSLab/stoicheia against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLDSLab%2Fstoicheia" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LDSLab/stoicheia 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] started tweaking git repo https://github.com/LDSLab/stoicheia
[INFO] finished tweaking git repo https://github.com/LDSLab/stoicheia
[INFO] tweaked toml for git repo https://github.com/LDSLab/stoicheia written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/LDSLab/stoicheia already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lru-cache v0.1.2
[INFO] [stderr]   Downloaded anyhow v1.0.26
[INFO] [stderr]   Downloaded thiserror-impl v1.0.11
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[INFO] [stderr]   Downloaded indoc v0.3.4
[INFO] [stderr]   Downloaded noisy_float v0.1.12
[INFO] [stderr]   Downloaded hermit-abi v0.1.7
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[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.58
[INFO] [stderr]   Downloaded thiserror v1.0.11
[INFO] [stderr]   Downloaded paste v0.1.6
[INFO] [stderr]   Downloaded paste-impl v0.1.6
[INFO] [stderr]   Downloaded pyo3cls v0.8.5
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[INFO] [stderr]   Downloaded ndarray v0.13.0
[INFO] [stderr]   Downloaded pyo3 v0.8.5
[INFO] [stderr]   Downloaded array-macro v1.0.4
[INFO] [stderr]   Downloaded js-sys v0.3.35
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[INFO] [stderr]   Downloaded rayon-core v1.7.0
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[INFO] [stderr]   Downloaded criterion v0.3.1
[INFO] [stderr]   Downloaded indoc-impl v0.3.4
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded ndarray-stats v0.3.0
[INFO] [stderr]   Downloaded oorandom v11.1.0
[INFO] [stderr]   Downloaded tinytemplate v1.0.3
[INFO] [stderr]   Downloaded criterion-plot v0.4.1
[INFO] [stderr]   Downloaded alloc-stdlib v0.2.1
[INFO] [stderr]   Downloaded enum-map-derive v0.4.3
[INFO] [stderr]   Downloaded fallible-streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded unicode-segmentation v1.6.0
[INFO] [stderr]   Downloaded enum-map v0.6.2
[INFO] [stderr]   Downloaded ctor v0.1.12
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.8.5
[INFO] [stderr]   Downloaded itertools v0.8.2
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded rayon v1.3.0
[INFO] [stderr]   Downloaded rand_pcg v0.2.1
[INFO] [stderr]   Downloaded lz4-sys v1.8.3
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded numpy v0.7.0
[INFO] [stderr]   Downloaded csv v1.1.3
[INFO] [stderr]   Downloaded brotli v3.3.0
[INFO] [stderr]   Downloaded plotters v0.2.12
[INFO] [stderr]   Downloaded libsqlite3-sys v0.17.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] [stdout] 2e4425a30471932869afbdcafa188dfa8e30f3213edf6290eb310f8d0baa5219
[INFO] running `Command { std: "docker" "start" "-a" "2e4425a30471932869afbdcafa188dfa8e30f3213edf6290eb310f8d0baa5219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e4425a30471932869afbdcafa188dfa8e30f3213edf6290eb310f8d0baa5219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4425a30471932869afbdcafa188dfa8e30f3213edf6290eb310f8d0baa5219", kill_on_drop: false }`
[INFO] [stdout] 2e4425a30471932869afbdcafa188dfa8e30f3213edf6290eb310f8d0baa5219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] [stdout] 4edc3b36b7cc8c9c91ed8ef576595fa117ea1fbcf08bca798f42efb7e321574c
[INFO] running `Command { std: "docker" "start" "-a" "4edc3b36b7cc8c9c91ed8ef576595fa117ea1fbcf08bca798f42efb7e321574c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking array-macro v1.0.4
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking brotli-decompressor v2.3.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking brotli v3.3.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking noisy_float v0.1.12
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking ndarray-stats v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]     Checking enum-map v0.6.2
[INFO] [stderr]     Checking thiserror v1.0.11
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]  Documenting stoicheia 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(is_sorted, result_cloned)]
[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:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(is_sorted, result_cloned)]
[INFO] [stdout]   |                       ^^^^^^^^^^^^^
[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 `stoicheia`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-type cdylib --crate-name stoicheia src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f6e874b71401f333 -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-428c63b1f017b5c3.rmeta --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-5ed06b1e6bae983f.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-812097185131217d.rmeta --extern brotli=/opt/rustwide/target/debug/deps/libbrotli-dda719da5a79a1c6.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-c1abbeb543ee42b1.rmeta --extern enum_map=/opt/rustwide/target/debug/deps/libenum_map-9d59947573a40268.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-e5549dd9882595b3.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern lz4=/opt/rustwide/target/debug/deps/liblz4-170aca716a875182.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-4d26650338cc2c98.rmeta --extern ndarray_stats=/opt/rustwide/target/debug/deps/libndarray_stats-f3b80fd7084ab9b9.rmeta --extern noisy_float=/opt/rustwide/target/debug/deps/libnoisy_float-c9f42d124f053a74.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-ae9ae1d7ab84af61.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e69f043ea49b4fdf.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-f4d486585382995d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8b64baf0512d2a20.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-dbc1411f17467821.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-93b161ccc946a4b6.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-41088e1e3ff1c8ed.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4edc3b36b7cc8c9c91ed8ef576595fa117ea1fbcf08bca798f42efb7e321574c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4edc3b36b7cc8c9c91ed8ef576595fa117ea1fbcf08bca798f42efb7e321574c", kill_on_drop: false }`
[INFO] [stdout] 4edc3b36b7cc8c9c91ed8ef576595fa117ea1fbcf08bca798f42efb7e321574c