[INFO] cloning repository https://github.com/fx-kirin/chrono-bincode-bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fx-kirin/chrono-bincode-bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffx-kirin%2Fchrono-bincode-bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffx-kirin%2Fchrono-bincode-bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06b6cd60dd0f9d808c692d15296d22a8349f671d
[INFO] documenting fx-kirin/chrono-bincode-bug 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%2Ffx-kirin%2Fchrono-bincode-bug" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fx-kirin/chrono-bincode-bug 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/fx-kirin/chrono-bincode-bug
[INFO] finished tweaking git repo https://github.com/fx-kirin/chrono-bincode-bug
[INFO] tweaked toml for git repo https://github.com/fx-kirin/chrono-bincode-bug written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/fx-kirin/chrono-bincode-bug 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] cb7c621f55b183ace7e6f91ddb6c4bb54660cdf36d82424661266b3b13307ecb
[INFO] running `Command { std: "docker" "start" "-a" "cb7c621f55b183ace7e6f91ddb6c4bb54660cdf36d82424661266b3b13307ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb7c621f55b183ace7e6f91ddb6c4bb54660cdf36d82424661266b3b13307ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7c621f55b183ace7e6f91ddb6c4bb54660cdf36d82424661266b3b13307ecb", kill_on_drop: false }`
[INFO] [stdout] cb7c621f55b183ace7e6f91ddb6c4bb54660cdf36d82424661266b3b13307ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 6f0b39fa127dcbe9b3ca9e8a38cdc7010c3d4142eab812d24b98fd19f81da709
[INFO] running `Command { std: "docker" "start" "-a" "6f0b39fa127dcbe9b3ca9e8a38cdc7010c3d4142eab812d24b98fd19f81da709", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]  Documenting chrono-bincode 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(map_first_last)]
[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 `chrono-bincode`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name chrono_bincode src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2d1baf50f6327961 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-dbce760580586821.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-89d3a89b16dbf4b4.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-3b74e88a4cb886bb.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c4c194e3ab27246c.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-b0265468f8cedcf9.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "6f0b39fa127dcbe9b3ca9e8a38cdc7010c3d4142eab812d24b98fd19f81da709", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f0b39fa127dcbe9b3ca9e8a38cdc7010c3d4142eab812d24b98fd19f81da709", kill_on_drop: false }`
[INFO] [stdout] 6f0b39fa127dcbe9b3ca9e8a38cdc7010c3d4142eab812d24b98fd19f81da709