[INFO] cloning repository https://github.com/Garandor/manta-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Garandor/manta-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarandor%2Fmanta-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarandor%2Fmanta-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65e454d7b52edbac0bd83c61c41e7904955daf31
[INFO] documenting Garandor/manta-challenge 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%2FGarandor%2Fmanta-challenge" "/workspace/builds/worker-43/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-43/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Garandor/manta-challenge 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] removed /workspace/builds/worker-43/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Garandor/manta-challenge
[INFO] finished tweaking git repo https://github.com/Garandor/manta-challenge
[INFO] tweaked toml for git repo https://github.com/Garandor/manta-challenge written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] crate git repo https://github.com/Garandor/manta-challenge 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode2 v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] [stdout] 72b63aaa9bfa338073f3329093cb3a52628341768b9d18ced5abfd3eb1af8359
[INFO] running `Command { std: "docker" "start" "-a" "72b63aaa9bfa338073f3329093cb3a52628341768b9d18ced5abfd3eb1af8359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72b63aaa9bfa338073f3329093cb3a52628341768b9d18ced5abfd3eb1af8359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b63aaa9bfa338073f3329093cb3a52628341768b9d18ced5abfd3eb1af8359", kill_on_drop: false }`
[INFO] [stdout] 72b63aaa9bfa338073f3329093cb3a52628341768b9d18ced5abfd3eb1af8359
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] [stdout] 2f9f9ab8add3bba22301529ab8947905fedf4454992c2d8b6ac2879c72db9071
[INFO] running `Command { std: "docker" "start" "-a" "2f9f9ab8add3bba22301529ab8947905fedf4454992c2d8b6ac2879c72db9071", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking bincode2 v2.0.1
[INFO] [stderr]  Documenting manta-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(pattern)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_zip)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(destructuring_assignment)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(slice_as_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 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 `manta-challenge`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name manta_challenge 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 bincode2=/opt/rustwide/target/debug/deps/libbincode2-23fe8b278b878ed0.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-7b9084f8ae89ce82.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-a2c45c3b2627891c.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-dffc49400c34a015.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-6792f3d5f7a30912.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-606330f362a4d5f7.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2f9f9ab8add3bba22301529ab8947905fedf4454992c2d8b6ac2879c72db9071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9f9ab8add3bba22301529ab8947905fedf4454992c2d8b6ac2879c72db9071", kill_on_drop: false }`
[INFO] [stdout] 2f9f9ab8add3bba22301529ab8947905fedf4454992c2d8b6ac2879c72db9071
