[INFO] cloning repository https://github.com/marknieweglowski-tc/gido
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marknieweglowski-tc/gido" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarknieweglowski-tc%2Fgido", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarknieweglowski-tc%2Fgido'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0134e5641d4e228dc5afda3949a2f3ae748aee43
[INFO] documenting marknieweglowski-tc/gido 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%2Fmarknieweglowski-tc%2Fgido" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marknieweglowski-tc/gido 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/marknieweglowski-tc/gido
[INFO] finished tweaking git repo https://github.com/marknieweglowski-tc/gido
[INFO] tweaked toml for git repo https://github.com/marknieweglowski-tc/gido written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/marknieweglowski-tc/gido 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v2.8.0
[INFO] [stderr]   Downloaded btoi v0.4.2
[INFO] [stderr]   Downloaded hashbrown v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 746496773ce1e93b3f66074aa890731608774dc4f1f24be75e0fd606c20c37b4
[INFO] running `Command { std: "docker" "start" "-a" "746496773ce1e93b3f66074aa890731608774dc4f1f24be75e0fd606c20c37b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "746496773ce1e93b3f66074aa890731608774dc4f1f24be75e0fd606c20c37b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746496773ce1e93b3f66074aa890731608774dc4f1f24be75e0fd606c20c37b4", kill_on_drop: false }`
[INFO] [stdout] 746496773ce1e93b3f66074aa890731608774dc4f1f24be75e0fd606c20c37b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 06fb8f871f837f1cdaa986eeb6f9184704ce9248e001509b56e681e72cd9aaf1
[INFO] running `Command { std: "docker" "start" "-a" "06fb8f871f837f1cdaa986eeb6f9184704ce9248e001509b56e681e72cd9aaf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking ordered-float v2.8.0
[INFO] [stderr]     Checking btoi v0.4.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking backoff v0.3.0
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]  Documenting gido v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(hash_drain_filter)]
[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 `gido`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name gido src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d60d47d9778f4137 -L dependency=/opt/rustwide/target/debug/deps --extern backoff=/opt/rustwide/target/debug/deps/libbackoff-1f8b5a6e13857bb6.rmeta --extern btoi=/opt/rustwide/target/debug/deps/libbtoi-8f8e52925ea0e4fa.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-3c95a0e516814303.rmeta --extern chrono_tz=/opt/rustwide/target/debug/deps/libchrono_tz-e77d4d5a46038c49.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-689215f867b5177f.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-64a4f6ce5a513e71.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-140b47837c0ceb38.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-84f5ac2e42d210b4.rmeta --extern serde_value=/opt/rustwide/target/debug/deps/libserde_value-32d5d114e2d48f2f.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-8de9cd5a4fd759fe.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-47bf3a499d956ec5.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-248bae7f193790ac.rmeta --cap-lints=warn --crate-version 1.0.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "06fb8f871f837f1cdaa986eeb6f9184704ce9248e001509b56e681e72cd9aaf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06fb8f871f837f1cdaa986eeb6f9184704ce9248e001509b56e681e72cd9aaf1", kill_on_drop: false }`
[INFO] [stdout] 06fb8f871f837f1cdaa986eeb6f9184704ce9248e001509b56e681e72cd9aaf1