[INFO] updating cached repository lukeKonopka/rust-ws-chat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lukeKonopka/rust-ws-chat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lukeKonopka/rust-ws-chat" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/lukeKonopka/rust-ws-chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/lukeKonopka/rust-ws-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lukeKonopka/rust-ws-chat" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/lukeKonopka/rust-ws-chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/lukeKonopka/rust-ws-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 06138137e53f6b70755e98477486fb12274a3f56
[INFO] sha for GitHub repo lukeKonopka/rust-ws-chat: 06138137e53f6b70755e98477486fb12274a3f56
[INFO] validating manifest of lukeKonopka/rust-ws-chat on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lukeKonopka/rust-ws-chat on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lukeKonopka/rust-ws-chat
[INFO] finished frobbing lukeKonopka/rust-ws-chat
[INFO] frobbed toml for lukeKonopka/rust-ws-chat written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/lukeKonopka/rust-ws-chat/Cargo.toml
[INFO] started frobbing lukeKonopka/rust-ws-chat
[INFO] finished frobbing lukeKonopka/rust-ws-chat
[INFO] frobbed toml for lukeKonopka/rust-ws-chat written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/lukeKonopka/rust-ws-chat/Cargo.toml
[INFO] crate lukeKonopka/rust-ws-chat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lukeKonopka/rust-ws-chat against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-0/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/lukeKonopka/rust-ws-chat:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bffb60700f4c5622d00ee634774504f2eb52b1a0dc1ce3eb5f73f6a509bd272e
[INFO] running `"docker" "start" "-a" "bffb60700f4c5622d00ee634774504f2eb52b1a0dc1ce3eb5f73f6a509bd272e"`
[INFO] [stderr]     Checking ws v0.8.0
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking rust-ws-chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/message.rs:65:11
[INFO] [stderr]    |
[INFO] [stderr] 65 |   fn from(err: ws::Error) -> Self {
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/message.rs:73:11
[INFO] [stderr]    |
[INFO] [stderr] 73 |   fn from(err: serde_json::error::Error) -> Self {
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `message`
[INFO] [stderr]   --> src/message.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   fn message(from: &str, to: &str, content: &str) -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `error`
[INFO] [stderr]   --> src/message.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   pub fn error(msg: &str) -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/message.rs:65:11
[INFO] [stderr]    |
[INFO] [stderr] 65 |   fn from(err: ws::Error) -> Self {
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/message.rs:73:11
[INFO] [stderr]    |
[INFO] [stderr] 73 |   fn from(err: serde_json::error::Error) -> Self {
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `message`
[INFO] [stderr]   --> src/message.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   fn message(from: &str, to: &str, content: &str) -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `error`
[INFO] [stderr]   --> src/message.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   pub fn error(msg: &str) -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `"docker" "inspect" "bffb60700f4c5622d00ee634774504f2eb52b1a0dc1ce3eb5f73f6a509bd272e"`
[INFO] running `"docker" "rm" "-f" "bffb60700f4c5622d00ee634774504f2eb52b1a0dc1ce3eb5f73f6a509bd272e"`
[INFO] [stdout] bffb60700f4c5622d00ee634774504f2eb52b1a0dc1ce3eb5f73f6a509bd272e