[INFO] cloning repository https://github.com/gregtatum/rust-sketches
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gregtatum/rust-sketches" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregtatum%2Frust-sketches", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregtatum%2Frust-sketches'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfc6fa8b7f5df49bdf9ca68b8c2f40767a209075
[INFO] documenting gregtatum/rust-sketches against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregtatum%2Frust-sketches" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gregtatum/rust-sketches on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gregtatum/rust-sketches
[INFO] finished tweaking git repo https://github.com/gregtatum/rust-sketches
[INFO] tweaked toml for git repo https://github.com/gregtatum/rust-sketches written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/gregtatum/rust-sketches already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallstr v0.2.0
[INFO] [stderr]   Downloaded icu_provider_fs v0.1.0
[INFO] [stderr]   Downloaded icu_uniset v0.1.0
[INFO] [stderr]   Downloaded fixed_decimal v0.1.0
[INFO] [stderr]   Downloaded icu_plurals v0.1.0
[INFO] [stderr]   Downloaded icu_datetime v0.1.0
[INFO] [stderr]   Downloaded tinystr v0.4.1
[INFO] [stderr]   Downloaded icu_locid_macros v0.1.0
[INFO] [stderr]   Downloaded icu v0.1.0
[INFO] [stderr]   Downloaded icu_locid v0.1.0
[INFO] [stderr]   Downloaded tinystr-raw v0.1.0
[INFO] [stderr]   Downloaded icu_provider v0.1.0
[INFO] [stderr]   Downloaded tinystr-macros v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6641675c8ef525dac89f3ce5b7ab5754e298683b9841eff39365becfdb092a4c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6641675c8ef525dac89f3ce5b7ab5754e298683b9841eff39365becfdb092a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6641675c8ef525dac89f3ce5b7ab5754e298683b9841eff39365becfdb092a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6641675c8ef525dac89f3ce5b7ab5754e298683b9841eff39365becfdb092a4c", kill_on_drop: false }`
[INFO] [stdout] 6641675c8ef525dac89f3ce5b7ab5754e298683b9841eff39365becfdb092a4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 098c17998cf291a220f186518a4c14de8f5c80ba75223c4689e87a931e129848
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "098c17998cf291a220f186518a4c14de8f5c80ba75223c4689e87a931e129848", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling tinystr-raw v0.1.0
[INFO] [stderr]     Checking icu_uniset v0.1.0
[INFO] [stderr]     Checking fixed_decimal v0.1.0
[INFO] [stderr]    Compiling tinystr-macros v0.2.0
[INFO] [stderr]     Checking tinystr v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking serde v1.0.118
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking icu_locid v0.1.0
[INFO] [stderr]     Checking smallstr v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]     Checking icu_provider v0.1.0
[INFO] [stderr]     Checking icu_datetime v0.1.0
[INFO] [stderr]     Checking icu_plurals v0.1.0
[INFO] [stderr]     Checking icu_provider_fs v0.1.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling icu_locid_macros v0.1.0
[INFO] [stderr]     Checking icu v0.1.0
[INFO] [stderr]  Documenting spec-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![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 `spec-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name spec_rs 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 icu=/opt/rustwide/target/debug/deps/libicu-23b178854d1fb171.rmeta --extern icu_provider_fs=/opt/rustwide/target/debug/deps/libicu_provider_fs-db746cc5cfb94430.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-1ed50e33eb55d481.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "098c17998cf291a220f186518a4c14de8f5c80ba75223c4689e87a931e129848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098c17998cf291a220f186518a4c14de8f5c80ba75223c4689e87a931e129848", kill_on_drop: false }`
[INFO] [stdout] 098c17998cf291a220f186518a4c14de8f5c80ba75223c4689e87a931e129848
