[INFO] cloning repository https://github.com/cottonguard/rust-http-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cottonguard/rust-http-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcottonguard%2Frust-http-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcottonguard%2Frust-http-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a781651b7d6a31c95eed92255942ac6052211ae
[INFO] documenting cottonguard/rust-http-server 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%2Fcottonguard%2Frust-http-server" "/workspace/builds/worker-37/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-37/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cottonguard/rust-http-server 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/cottonguard/rust-http-server
[INFO] finished tweaking git repo https://github.com/cottonguard/rust-http-server
[INFO] tweaked toml for git repo https://github.com/cottonguard/rust-http-server written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate git repo https://github.com/cottonguard/rust-http-server 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]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.0.5
[INFO] [stderr]   Downloaded aho-corasick v0.6.8
[INFO] [stderr]   Downloaded memchr v2.1.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] dda66c2bf4e8ef33752ac563291c225fae3088c375123a08fab280a464f803f7
[INFO] running `Command { std: "docker" "start" "-a" "dda66c2bf4e8ef33752ac563291c225fae3088c375123a08fab280a464f803f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dda66c2bf4e8ef33752ac563291c225fae3088c375123a08fab280a464f803f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dda66c2bf4e8ef33752ac563291c225fae3088c375123a08fab280a464f803f7", kill_on_drop: false }`
[INFO] [stdout] dda66c2bf4e8ef33752ac563291c225fae3088c375123a08fab280a464f803f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] f6123655623d7f295f63d025e4f629e997721567ae0d8ab9da39a835dcb5f097
[INFO] running `Command { std: "docker" "start" "-a" "f6123655623d7f295f63d025e4f629e997721567ae0d8ab9da39a835dcb5f097", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]  Documenting http v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(pattern)]
[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 `http`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name http src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f6fc2f81f48a599a -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-5ba20b6952f232df.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f3bcbce9108693fa.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-3200c83045e92792.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f6123655623d7f295f63d025e4f629e997721567ae0d8ab9da39a835dcb5f097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6123655623d7f295f63d025e4f629e997721567ae0d8ab9da39a835dcb5f097", kill_on_drop: false }`
[INFO] [stdout] f6123655623d7f295f63d025e4f629e997721567ae0d8ab9da39a835dcb5f097