[INFO] updating cached repository saem/rncc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/saem/rncc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/saem/rncc" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/saem/rncc"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/saem/rncc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/saem/rncc" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/saem/rncc"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/saem/rncc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d2e8b0baa55d73594b8063d64bed23bfb0fe23ad
[INFO] sha for GitHub repo saem/rncc: d2e8b0baa55d73594b8063d64bed23bfb0fe23ad
[INFO] validating manifest of saem/rncc on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of saem/rncc on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing saem/rncc
[INFO] finished frobbing saem/rncc
[INFO] frobbed toml for saem/rncc written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/saem/rncc/Cargo.toml
[INFO] started frobbing saem/rncc
[INFO] finished frobbing saem/rncc
[INFO] frobbed toml for saem/rncc written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/saem/rncc/Cargo.toml
[INFO] crate saem/rncc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking saem/rncc against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-2/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/saem/rncc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a3b858a4222990e4c85b4055e6891587f95eba6924faf346334f6668d0078649
[INFO] running `"docker" "start" "-a" "a3b858a4222990e4c85b4055e6891587f95eba6924faf346334f6668d0078649"`
[INFO] [stderr]     Checking rncc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Operation`
[INFO] [stderr]   --> src/network.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | enum Operation {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Operation`
[INFO] [stderr]   --> src/network.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | enum Operation {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "a3b858a4222990e4c85b4055e6891587f95eba6924faf346334f6668d0078649"`
[INFO] running `"docker" "rm" "-f" "a3b858a4222990e4c85b4055e6891587f95eba6924faf346334f6668d0078649"`
[INFO] [stdout] a3b858a4222990e4c85b4055e6891587f95eba6924faf346334f6668d0078649