[INFO] cloning repository https://github.com/chylli/rust-busybox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chylli/rust-busybox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchylli%2Frust-busybox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchylli%2Frust-busybox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d61de7b3e27134ef33e90d7cdf87d82f9b16f89e
[INFO] documenting chylli/rust-busybox against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchylli%2Frust-busybox" "/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/chylli/rust-busybox on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chylli/rust-busybox
[INFO] finished tweaking git repo https://github.com/chylli/rust-busybox
[INFO] tweaked toml for git repo https://github.com/chylli/rust-busybox written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/chylli/rust-busybox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9d34fd4fdde6b9d58bf178a4b079074c5b227fba27e779b4e8c658fb3f784b7
[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" "d9d34fd4fdde6b9d58bf178a4b079074c5b227fba27e779b4e8c658fb3f784b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9d34fd4fdde6b9d58bf178a4b079074c5b227fba27e779b4e8c658fb3f784b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9d34fd4fdde6b9d58bf178a4b079074c5b227fba27e779b4e8c658fb3f784b7", kill_on_drop: false }`
[INFO] [stdout] d9d34fd4fdde6b9d58bf178a4b079074c5b227fba27e779b4e8c658fb3f784b7
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b966c7fa80d47d2d037039b48383435ba7e155f445dfa4a8401e6bf844ea5ab3
[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" "b966c7fa80d47d2d037039b48383435ba7e155f445dfa4a8401e6bf844ea5ab3", kill_on_drop: false }`
[INFO] [stderr]  Documenting busybox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `crash` is defined multiple times
[INFO] [stdout]   --> src/echo/../utils/mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 10 |    );
[INFO] [stdout]    |     ^ `crash` redefined here
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/yes/../utils/mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! crash(
[INFO] [stdout] 3  | |     ($($arg:tt)*) => ({
[INFO] [stdout] 4  | |         match writeln!(&mut ::std::io::stderr(), $($arg)* ) {
[INFO] [stdout] 5  | |             Ok(_) => {},
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | |     })
[INFO] [stdout] 10 | |  );
[INFO] [stdout]    | |___- previous definition of the macro `crash` here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `crash` must be defined only once in the macro namespace of this module
[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 E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `busybox`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name busybox 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 getopts=/opt/rustwide/target/debug/deps/libgetopts-b6b87ac485e83773.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "b966c7fa80d47d2d037039b48383435ba7e155f445dfa4a8401e6bf844ea5ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b966c7fa80d47d2d037039b48383435ba7e155f445dfa4a8401e6bf844ea5ab3", kill_on_drop: false }`
[INFO] [stdout] b966c7fa80d47d2d037039b48383435ba7e155f445dfa4a8401e6bf844ea5ab3