[INFO] cloning repository https://github.com/j-fro/rocket-todo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j-fro/rocket-todo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-fro%2Frocket-todo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-fro%2Frocket-todo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebba3a6bc3dca4b5c258b75b41807c6c659f2331
[INFO] documenting j-fro/rocket-todo 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%2Fj-fro%2Frocket-todo" "/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/j-fro/rocket-todo 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/j-fro/rocket-todo
[INFO] finished tweaking git repo https://github.com/j-fro/rocket-todo
[INFO] tweaked toml for git repo https://github.com/j-fro/rocket-todo written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/j-fro/rocket-todo 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] 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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41392c1ad53c9e7c548e78ce5a15f4d8d73582ddbc5ad97f3f68bc56ff82199c
[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" "41392c1ad53c9e7c548e78ce5a15f4d8d73582ddbc5ad97f3f68bc56ff82199c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41392c1ad53c9e7c548e78ce5a15f4d8d73582ddbc5ad97f3f68bc56ff82199c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41392c1ad53c9e7c548e78ce5a15f4d8d73582ddbc5ad97f3f68bc56ff82199c", kill_on_drop: false }`
[INFO] [stdout] 41392c1ad53c9e7c548e78ce5a15f4d8d73582ddbc5ad97f3f68bc56ff82199c
[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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9176e4238b07f0fad4628c84e3b2221cc0f0b48db2ad2001e4ac5b1b6513c09
[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" "d9176e4238b07f0fad4628c84e3b2221cc0f0b48db2ad2001e4ac5b1b6513c09", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling libc v0.2.19
[INFO] [stderr]    Compiling unicode-normalization v0.1.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling traitobject v0.0.1
[INFO] [stderr]     Checking serde v0.8.22
[INFO] [stderr]    Compiling httparse v1.2.1
[INFO] [stderr]     Checking md5 v0.2.1
[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking phf_shared v0.7.20
[INFO] [stderr]     Checking unicode-bidi v0.2.4
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking num_cpus v1.2.1
[INFO] [stderr]    Compiling hpack v0.2.0
[INFO] [stderr]    Compiling mime v0.2.2
[INFO] [stderr]    Compiling syn v0.10.6
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking phf v0.7.20
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking term v0.4.4
[INFO] [stderr]     Checking postgres-protocol v0.2.0
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]    Compiling term-painter v0.2.3
[INFO] [stderr]    Compiling rocket_codegen v0.1.4
[INFO] [stderr]    Compiling solicit v0.4.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket_codegen-0.1.4/build.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rocket_codegen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d9176e4238b07f0fad4628c84e3b2221cc0f0b48db2ad2001e4ac5b1b6513c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9176e4238b07f0fad4628c84e3b2221cc0f0b48db2ad2001e4ac5b1b6513c09", kill_on_drop: false }`
[INFO] [stdout] d9176e4238b07f0fad4628c84e3b2221cc0f0b48db2ad2001e4ac5b1b6513c09
