[INFO] cloning repository https://github.com/winksaville/rust-expr-reqwest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/winksaville/rust-expr-reqwest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinksaville%2Frust-expr-reqwest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinksaville%2Frust-expr-reqwest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d35153337077a47647c154917ac37212a65df4ef
[INFO] documenting winksaville/rust-expr-reqwest against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinksaville%2Frust-expr-reqwest" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/winksaville/rust-expr-reqwest 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 git repo https://github.com/winksaville/rust-expr-reqwest
[INFO] finished tweaking git repo https://github.com/winksaville/rust-expr-reqwest
[INFO] tweaked toml for git repo https://github.com/winksaville/rust-expr-reqwest written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/winksaville/rust-expr-reqwest already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 821f39396fe2a1a448952e43b56154362222cf3da6ee4d43bf3753bbb68e136d
[INFO] running `Command { std: "docker" "start" "-a" "821f39396fe2a1a448952e43b56154362222cf3da6ee4d43bf3753bbb68e136d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "821f39396fe2a1a448952e43b56154362222cf3da6ee4d43bf3753bbb68e136d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821f39396fe2a1a448952e43b56154362222cf3da6ee4d43bf3753bbb68e136d", kill_on_drop: false }`
[INFO] [stdout] 821f39396fe2a1a448952e43b56154362222cf3da6ee4d43bf3753bbb68e136d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ae12be5c6d1e80aa2e374f550225ab3616023eff8896b43ab035c9f8ac52467d
[INFO] running `Command { std: "docker" "start" "-a" "ae12be5c6d1e80aa2e374f550225ab3616023eff8896b43ab035c9f8ac52467d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking tokio v1.4.0
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking tokio-util v0.6.5
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking hyper v0.14.5
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.2
[INFO] [stderr]  Documenting expr-reqwest 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[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 `expr-reqwest`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name expr_reqwest src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-88c59ee3aac5747e.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-4e132399b961d086.rmeta --extern hex_literal=/opt/rustwide/target/debug/deps/libhex_literal-2312436eaeb097a6.so --extern hmac=/opt/rustwide/target/debug/deps/libhmac-519819faea77ef61.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-d337d7849b754f50.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ffe53da2dda6bc91.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a8a30c50445c2517.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-6641c0d6de7dc598.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-1187017809eeecf3.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-36d2870816cdc6ff.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-9fc8e55776a066e6.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ae12be5c6d1e80aa2e374f550225ab3616023eff8896b43ab035c9f8ac52467d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae12be5c6d1e80aa2e374f550225ab3616023eff8896b43ab035c9f8ac52467d", kill_on_drop: false }`
[INFO] [stdout] ae12be5c6d1e80aa2e374f550225ab3616023eff8896b43ab035c9f8ac52467d
