[INFO] fetching crate capstan 0.0.3...
[INFO] documenting capstan-0.0.3 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate capstan 0.0.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate capstan 0.0.3 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate capstan 0.0.3
[INFO] finished tweaking crates.io crate capstan 0.0.3
[INFO] tweaked toml for crates.io crate capstan 0.0.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate capstan 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded generic-array v0.13.2
[INFO] [stderr]   Downloaded alga v0.9.3
[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded syn v1.0.42
[INFO] [stderr]   Downloaded proptest v0.10.1
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded svg v0.8.0
[INFO] [stderr]   Downloaded libc v0.2.78
[INFO] [stderr]   Downloaded matrixmultiply v0.2.3
[INFO] [stderr]   Downloaded libm v0.2.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.18
[INFO] [stderr]   Downloaded simba v0.2.1
[INFO] [stderr]   Downloaded nalgebra v0.22.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded typenum v1.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48de856313f37803f3a2adf38da8261c17acc7b4e44434fb63cb68e1b823c2f9
[INFO] running `Command { std: "docker" "start" "-a" "48de856313f37803f3a2adf38da8261c17acc7b4e44434fb63cb68e1b823c2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48de856313f37803f3a2adf38da8261c17acc7b4e44434fb63cb68e1b823c2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48de856313f37803f3a2adf38da8261c17acc7b4e44434fb63cb68e1b823c2f9", kill_on_drop: false }`
[INFO] [stdout] 48de856313f37803f3a2adf38da8261c17acc7b4e44434fb63cb68e1b823c2f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86f3bb6ad78bd5d95f214a8f90b1a89a1f84e1a1efc4bad8d67fee4b0a6f6caf
[INFO] running `Command { std: "docker" "start" "-a" "86f3bb6ad78bd5d95f214a8f90b1a89a1f84e1a1efc4bad8d67fee4b0a6f6caf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking svg v0.8.0
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking simba v0.2.1
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking nalgebra v0.22.0
[INFO] [stderr]  Documenting capstan v0.0.3 (/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)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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: could not document `capstan`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name capstan src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=13dac87f105e431f -L dependency=/opt/rustwide/target/debug/deps --extern alga=/opt/rustwide/target/debug/deps/libalga-c9f2ad093279bc35.rmeta --extern approx=/opt/rustwide/target/debug/deps/libapprox-4d6f3517f01a83df.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-e455392f89f8a610.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-ea7c10acee206faa.rmeta --extern svg=/opt/rustwide/target/debug/deps/libsvg-40fa65d637c35db8.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-fbe5ce028499d667.rmeta --cap-lints=warn --crate-version 0.0.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "86f3bb6ad78bd5d95f214a8f90b1a89a1f84e1a1efc4bad8d67fee4b0a6f6caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f3bb6ad78bd5d95f214a8f90b1a89a1f84e1a1efc4bad8d67fee4b0a6f6caf", kill_on_drop: false }`
[INFO] [stdout] 86f3bb6ad78bd5d95f214a8f90b1a89a1f84e1a1efc4bad8d67fee4b0a6f6caf
