[INFO] cloning repository https://github.com/bluemont/rs-uttt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bluemont/rs-uttt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbluemont%2Frs-uttt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbluemont%2Frs-uttt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abe32eba01f7de9ba4143a1177e69ff4e153dc54
[INFO] documenting bluemont/rs-uttt against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbluemont%2Frs-uttt" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bluemont/rs-uttt on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bluemont/rs-uttt
[INFO] finished tweaking git repo https://github.com/bluemont/rs-uttt
[INFO] tweaked toml for git repo https://github.com/bluemont/rs-uttt written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/bluemont/rs-uttt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bufstream v0.1.2
[INFO] [stderr]   Downloaded quickcheck v0.3.2
[INFO] [stderr]   Downloaded md5 v0.2.1
[INFO] [stderr]   Downloaded phf_shared v0.7.20
[INFO] [stderr]   Downloaded phf v0.7.20
[INFO] [stderr]   Downloaded fallible-iterator v0.1.3
[INFO] [stderr]   Downloaded postgres v0.13.3
[INFO] [stderr]   Downloaded postgres-protocol v0.1.1
[INFO] [stderr]   Downloaded linked-hash-map v0.2.1
[INFO] [stderr]   Downloaded lru-cache v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45c3b0a33579850222a49f8fd5be7ab27dbd0cf68eea48c01fb98bee6fdf56ac
[INFO] running `Command { std: "docker" "start" "-a" "45c3b0a33579850222a49f8fd5be7ab27dbd0cf68eea48c01fb98bee6fdf56ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45c3b0a33579850222a49f8fd5be7ab27dbd0cf68eea48c01fb98bee6fdf56ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c3b0a33579850222a49f8fd5be7ab27dbd0cf68eea48c01fb98bee6fdf56ac", kill_on_drop: false }`
[INFO] [stdout] 45c3b0a33579850222a49f8fd5be7ab27dbd0cf68eea48c01fb98bee6fdf56ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be85bf14e47169e554cc4313facd96b67f322cb991fd23b6eee1dfaf3da1400f
[INFO] running `Command { std: "docker" "start" "-a" "be85bf14e47169e554cc4313facd96b67f322cb991fd23b6eee1dfaf3da1400f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]     Checking fallible-iterator v0.1.3
[INFO] [stderr]     Checking phf_shared v0.7.20
[INFO] [stderr]     Checking md5 v0.2.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking bufstream v0.1.2
[INFO] [stderr]     Checking linked-hash-map v0.2.1
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking postgres-protocol v0.1.1
[INFO] [stderr]     Checking lru-cache v0.1.0
[INFO] [stderr]     Checking phf v0.7.20
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking postgres v0.13.3
[INFO] [stderr]  Documenting uttt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[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 `uttt`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name uttt 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 lru_cache=/opt/rustwide/target/debug/deps/liblru_cache-2cab9055d9ed354a.rmeta --extern postgres=/opt/rustwide/target/debug/deps/libpostgres-b8c42ededbef2600.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-34df01d2b4efc2d0.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "be85bf14e47169e554cc4313facd96b67f322cb991fd23b6eee1dfaf3da1400f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be85bf14e47169e554cc4313facd96b67f322cb991fd23b6eee1dfaf3da1400f", kill_on_drop: false }`
[INFO] [stdout] be85bf14e47169e554cc4313facd96b67f322cb991fd23b6eee1dfaf3da1400f
