[INFO] cloning repository https://github.com/matthiaskrgr/cargo-rebuild-check
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthiaskrgr/cargo-rebuild-check" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Fcargo-rebuild-check", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Fcargo-rebuild-check'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d54fa01899ab0b14fd29fa0e585e8b1bad9bfefa
[INFO] documenting matthiaskrgr/cargo-rebuild-check against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Fcargo-rebuild-check" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matthiaskrgr/cargo-rebuild-check on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matthiaskrgr/cargo-rebuild-check
[INFO] finished tweaking git repo https://github.com/matthiaskrgr/cargo-rebuild-check
[INFO] tweaked toml for git repo https://github.com/matthiaskrgr/cargo-rebuild-check written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/matthiaskrgr/cargo-rebuild-check already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46ba5bf167b15a68d00f65723675f7d5e21cb85088eaef3852bcd4e4d26dea10
[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" "46ba5bf167b15a68d00f65723675f7d5e21cb85088eaef3852bcd4e4d26dea10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46ba5bf167b15a68d00f65723675f7d5e21cb85088eaef3852bcd4e4d26dea10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ba5bf167b15a68d00f65723675f7d5e21cb85088eaef3852bcd4e4d26dea10", kill_on_drop: false }`
[INFO] [stdout] 46ba5bf167b15a68d00f65723675f7d5e21cb85088eaef3852bcd4e4d26dea10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2f82a736ab88eb0eeabf0e3dfd52a41866a5ce0d39c9327036482c305efe5b2
[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" "d2f82a736ab88eb0eeabf0e3dfd52a41866a5ce0d39c9327036482c305efe5b2", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling pkg-config v0.3.12
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling openssl v0.10.10
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking home v0.3.3
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking socket2 v0.3.7
[INFO] [stderr]     Checking filetime v0.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking jobserver v0.1.11
[INFO] [stderr]     Checking tempfile v3.0.3
[INFO] [stderr]     Checking regex v1.0.2
[INFO] [stderr]     Checking serde_ignored v0.0.4
[INFO] [stderr]     Checking globset v0.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]     Checking tar v0.4.16
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking ignore v0.4.2
[INFO] [stderr]    Compiling openssl-sys v0.9.33
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.4.6
[INFO] [stderr]    Compiling libssh2-sys v0.2.8
[INFO] [stderr]    Compiling libgit2-sys v0.7.5
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking crypto-hash v0.3.1
[INFO] [stderr]     Checking curl v0.4.12
[INFO] [stderr]     Checking crates-io v0.16.0
[INFO] [stderr]     Checking git2 v0.7.2
[INFO] [stderr]     Checking git2-curl v0.8.1
[INFO] [stderr]     Checking cargo v0.28.0
[INFO] [stderr]  Documenting cargo-rebuild-check v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview, use_extern_macros)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview, use_extern_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.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 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0705.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `cargo-rebuild-check`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name cargo_rebuild_check 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 cargo=/opt/rustwide/target/debug/deps/libcargo-c50132197208a338.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-920938bcda223143.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-925942aad738fb88.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "d2f82a736ab88eb0eeabf0e3dfd52a41866a5ce0d39c9327036482c305efe5b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2f82a736ab88eb0eeabf0e3dfd52a41866a5ce0d39c9327036482c305efe5b2", kill_on_drop: false }`
[INFO] [stdout] d2f82a736ab88eb0eeabf0e3dfd52a41866a5ce0d39c9327036482c305efe5b2
