[INFO] cloning repository https://github.com/semc-labs/salo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/semc-labs/salo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemc-labs%2Fsalo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemc-labs%2Fsalo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fc6d10df129be196f404102a05bf1cd8dcfe2a5
[INFO] documenting semc-labs/salo 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%2Fsemc-labs%2Fsalo" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/semc-labs/salo 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/semc-labs/salo
[INFO] finished tweaking git repo https://github.com/semc-labs/salo
[INFO] tweaked toml for git repo https://github.com/semc-labs/salo written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/semc-labs/salo 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ebd62f009410434f79446309f6600bc08840fa15a7b44021243d808664764e2f
[INFO] running `Command { std: "docker" "start" "-a" "ebd62f009410434f79446309f6600bc08840fa15a7b44021243d808664764e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebd62f009410434f79446309f6600bc08840fa15a7b44021243d808664764e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebd62f009410434f79446309f6600bc08840fa15a7b44021243d808664764e2f", kill_on_drop: false }`
[INFO] [stdout] ebd62f009410434f79446309f6600bc08840fa15a7b44021243d808664764e2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ecbbfdcd46d59fb3df7ed07d0676df79046400d32e66407439c550f032ecfb9c
[INFO] running `Command { std: "docker" "start" "-a" "ecbbfdcd46d59fb3df7ed07d0676df79046400d32e66407439c550f032ecfb9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking owo-colors v1.3.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking smallstr v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking ariadne v0.1.3
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking lalrpop-util v0.19.6
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling lalrpop v0.19.6
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking mortal v0.2.2
[INFO] [stderr]     Checking linefeed v0.6.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-subscriber v0.2.19
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking tracing-error v0.1.2
[INFO] [stderr]     Checking color-spantrace v0.1.6
[INFO] [stderr]     Checking color-eyre v0.5.11
[INFO] [stderr]  Documenting salo v0.1.0 (/opt/rustwide/workdir/salo)
[INFO] [stderr]    Compiling saloc v0.1.0 (/opt/rustwide/workdir/saloc)
[INFO] [stderr]  Documenting saloc v0.1.0 (/opt/rustwide/workdir/saloc)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> saloc/src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(format_args_capture, crate_visibility_modifier, 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 `saloc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name saloc saloc/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 ariadne=/opt/rustwide/target/debug/deps/libariadne-14a73279a7ac5401.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-69cedf302c1b9639.rmeta --extern color_eyre=/opt/rustwide/target/debug/deps/libcolor_eyre-89a4d9c4f69969cf.rmeta --extern lalrpop_util=/opt/rustwide/target/debug/deps/liblalrpop_util-2543e67980af6465.rmeta --extern linefeed=/opt/rustwide/target/debug/deps/liblinefeed-75293f49a53f0004.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-00664e863ff3aa1f.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-289ef12334221f4d.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ecbbfdcd46d59fb3df7ed07d0676df79046400d32e66407439c550f032ecfb9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecbbfdcd46d59fb3df7ed07d0676df79046400d32e66407439c550f032ecfb9c", kill_on_drop: false }`
[INFO] [stdout] ecbbfdcd46d59fb3df7ed07d0676df79046400d32e66407439c550f032ecfb9c
