[INFO] cloning repository https://github.com/dobrakmato/rust-mod-tracker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dobrakmato/rust-mod-tracker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-mod-tracker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-mod-tracker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 524533be253804233fc261fafb8ca612ef63ce5d
[INFO] documenting dobrakmato/rust-mod-tracker against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-mod-tracker" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/rust-mod-tracker on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dobrakmato/rust-mod-tracker
[INFO] finished tweaking git repo https://github.com/dobrakmato/rust-mod-tracker
[INFO] tweaked toml for git repo https://github.com/dobrakmato/rust-mod-tracker written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dobrakmato/rust-mod-tracker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.2
[INFO] [stderr]   Downloaded bindgen v0.32.3
[INFO] [stderr]   Downloaded cpal v0.9.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.5.1
[INFO] [stderr]   Downloaded rand_derive v0.5.0
[INFO] [stderr]   Downloaded ghakuf v0.5.3
[INFO] [stderr]   Downloaded quote v0.4.2
[INFO] [stderr]   Downloaded device_query v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 039781db47013ac4c8fc545db86b414fe9b02a42d47fe1c250c0253369f608ad
[INFO] running `Command { std: "docker" "start" "-a" "039781db47013ac4c8fc545db86b414fe9b02a42d47fe1c250c0253369f608ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "039781db47013ac4c8fc545db86b414fe9b02a42d47fe1c250c0253369f608ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039781db47013ac4c8fc545db86b414fe9b02a42d47fe1c250c0253369f608ad", kill_on_drop: false }`
[INFO] [stdout] 039781db47013ac4c8fc545db86b414fe9b02a42d47fe1c250c0253369f608ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ea674b7dacf2a1281bc7c724db4b307b9ed5899ff8aaea066051e6c9d4e45d9
[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" "2ea674b7dacf2a1281bc7c724db4b307b9ed5899ff8aaea066051e6c9d4e45d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling device_query v0.1.3
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling rand_derive v0.5.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ghakuf v0.5.3
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking cpal v0.9.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]  Documenting mod_tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(clamp)]
[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 `mod_tracker`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name mod_tracker 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 clap=/opt/rustwide/target/debug/deps/libclap-fcdc721bf6790225.rmeta --extern cpal=/opt/rustwide/target/debug/deps/libcpal-d76da0ebc210ff4a.rmeta --extern device_query=/opt/rustwide/target/debug/deps/libdevice_query-4c564ea985dbe194.rmeta --extern ghakuf=/opt/rustwide/target/debug/deps/libghakuf-0b255aceca6180df.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-4c41c0c8e83f22f0.rmeta --extern rand_derive=/opt/rustwide/target/debug/deps/librand_derive-95291e9b68ee14cf.so --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "2ea674b7dacf2a1281bc7c724db4b307b9ed5899ff8aaea066051e6c9d4e45d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ea674b7dacf2a1281bc7c724db4b307b9ed5899ff8aaea066051e6c9d4e45d9", kill_on_drop: false }`
[INFO] [stdout] 2ea674b7dacf2a1281bc7c724db4b307b9ed5899ff8aaea066051e6c9d4e45d9
