[INFO] cloning repository https://github.com/the8472/defrag-dirs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the8472/defrag-dirs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Fdefrag-dirs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe8472%2Fdefrag-dirs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5068c039c3b6796b0cb3345ce9b30702b99d2d2
[INFO] documenting the8472/defrag-dirs 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%2Fthe8472%2Fdefrag-dirs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/the8472/defrag-dirs 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/the8472/defrag-dirs
[INFO] finished tweaking git repo https://github.com/the8472/defrag-dirs
[INFO] tweaked toml for git repo https://github.com/the8472/defrag-dirs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/the8472/defrag-dirs 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1164eee79f18f73569fd19a43248e99e639995daf4e3dfac9589fb91bf8d1085
[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" "1164eee79f18f73569fd19a43248e99e639995daf4e3dfac9589fb91bf8d1085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1164eee79f18f73569fd19a43248e99e639995daf4e3dfac9589fb91bf8d1085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1164eee79f18f73569fd19a43248e99e639995daf4e3dfac9589fb91bf8d1085", kill_on_drop: false }`
[INFO] [stdout] 1164eee79f18f73569fd19a43248e99e639995daf4e3dfac9589fb91bf8d1085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ae0dc64ae64ae224ba1a31e236201165ef315bcbe393a5559615c60a2a3e936c
[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" "ae0dc64ae64ae224ba1a31e236201165ef315bcbe393a5559615c60a2a3e936c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.24
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]     Checking cfg-if v0.1.1
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]     Checking crc v1.4.0
[INFO] [stderr]    Compiling derive-error v0.0.3
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]     Checking flate2 v0.2.19
[INFO] [stderr]     Checking btrfs2 v1.2.2
[INFO] [stderr]  Documenting defrag-dirs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `alloc_system`
[INFO] [stdout]   --> src/main.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate alloc_system;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `defrag-dirs`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name defrag_dirs 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 btrfs2=/opt/rustwide/target/debug/deps/libbtrfs2-cbd0d2e239f108af.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-c857f42a039ff50e.rmeta --extern derive_error=/opt/rustwide/target/debug/deps/libderive_error-f7e94ead6e603701.so --extern nix=/opt/rustwide/target/debug/deps/libnix-45c15d83c7479a47.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-bc599903b6df4260.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-07f23ab57d2e8c5e.rmeta --cap-lints=warn --crate-version 0.1.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ae0dc64ae64ae224ba1a31e236201165ef315bcbe393a5559615c60a2a3e936c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0dc64ae64ae224ba1a31e236201165ef315bcbe393a5559615c60a2a3e936c", kill_on_drop: false }`
[INFO] [stdout] ae0dc64ae64ae224ba1a31e236201165ef315bcbe393a5559615c60a2a3e936c