[INFO] updating cached repository Lait-au-Cafe/change_rings
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Lait-au-Cafe/change_rings
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Lait-au-Cafe/change_rings" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/Lait-au-Cafe/change_rings"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/Lait-au-Cafe/change_rings'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Lait-au-Cafe/change_rings" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/Lait-au-Cafe/change_rings"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/Lait-au-Cafe/change_rings'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b1462181ccf067501d21522d55d772035d23379c
[INFO] sha for GitHub repo Lait-au-Cafe/change_rings: b1462181ccf067501d21522d55d772035d23379c
[INFO] validating manifest of Lait-au-Cafe/change_rings on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Lait-au-Cafe/change_rings on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Lait-au-Cafe/change_rings
[INFO] finished frobbing Lait-au-Cafe/change_rings
[INFO] frobbed toml for Lait-au-Cafe/change_rings written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/Lait-au-Cafe/change_rings/Cargo.toml
[INFO] started frobbing Lait-au-Cafe/change_rings
[INFO] finished frobbing Lait-au-Cafe/change_rings
[INFO] frobbed toml for Lait-au-Cafe/change_rings written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/Lait-au-Cafe/change_rings/Cargo.toml
[INFO] crate Lait-au-Cafe/change_rings has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Lait-au-Cafe/change_rings against master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-2/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/Lait-au-Cafe/change_rings:/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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0b26a6742894abbd039b30015f231a42a2020453978c3954073bff86b908a5ea
[INFO] running `"docker" "start" "-a" "0b26a6742894abbd039b30015f231a42a2020453978c3954073bff86b908a5ea"`
[INFO] [stderr]     Checking change_rings v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `display`
[INFO] [stderr]   --> src/node.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn display(node_list: NodeList) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `display2`
[INFO] [stderr]   --> src/node.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 | / pub fn display2(
[INFO] [stderr] 62 | |     node_list: &NodeList, 
[INFO] [stderr] 63 | |     n: usize
[INFO] [stderr] 64 | | ) {
[INFO] [stderr] ...  |
[INFO] [stderr] 84 | |     }
[INFO] [stderr] 85 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `display`
[INFO] [stderr]   --> src/node.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn display(node_list: NodeList) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `display2`
[INFO] [stderr]   --> src/node.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 | / pub fn display2(
[INFO] [stderr] 62 | |     node_list: &NodeList, 
[INFO] [stderr] 63 | |     n: usize
[INFO] [stderr] 64 | | ) {
[INFO] [stderr] ...  |
[INFO] [stderr] 84 | |     }
[INFO] [stderr] 85 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "0b26a6742894abbd039b30015f231a42a2020453978c3954073bff86b908a5ea"`
[INFO] running `"docker" "rm" "-f" "0b26a6742894abbd039b30015f231a42a2020453978c3954073bff86b908a5ea"`
[INFO] [stdout] 0b26a6742894abbd039b30015f231a42a2020453978c3954073bff86b908a5ea