[INFO] crate express 0.0.2 is already in cache
[INFO] extracting crate express 0.0.2 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/express/0.0.2
[INFO] extracting crate express 0.0.2 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/express/0.0.2
[INFO] validating manifest of express-0.0.2 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of express-0.0.2 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing express-0.0.2
[INFO] finished frobbing express-0.0.2
[INFO] frobbed toml for express-0.0.2 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/express/0.0.2/Cargo.toml
[INFO] started frobbing express-0.0.2
[INFO] finished frobbing express-0.0.2
[INFO] frobbed toml for express-0.0.2 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/express/0.0.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking express-0.0.2 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-2/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/express/0.0.2:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4c21d15c8304d0cb341f8c84edbe574d6743d7b5a177c11a202c7b7b68110b26
[INFO] running `"docker" "start" "-a" "4c21d15c8304d0cb341f8c84edbe574d6743d7b5a177c11a202c7b7b68110b26"`
[INFO] [stderr]     Checking express v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/express.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn listen(port: String) -> () {
[INFO] [stderr]    |                   ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/router/router.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/router/router.rs:18:28
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]    |                            ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `next`
[INFO] [stderr]   --> src/router/router.rs:18:41
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]    |                                         ^^^^ help: consider prefixing with an underscore: `_next`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]  --> src/middleware.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]   |               ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]  --> src/middleware.rs:4:28
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]   |                            ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `next`
[INFO] [stderr]  --> src/middleware.rs:4:41
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]   |                                         ^^^^ help: consider prefixing with an underscore: `_next`
[INFO] [stderr] 
[INFO] [stderr] warning: method `Use` should have a snake case name
[INFO] [stderr]   --> src/express.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn Use() -> () {}
[INFO] [stderr]    |            ^^^ help: convert the identifier to snake case: `use`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/express.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn listen(port: String) -> () {
[INFO] [stderr]    |                   ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/router/router.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/router/router.rs:18:28
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]    |                            ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `next`
[INFO] [stderr]   --> src/router/router.rs:18:41
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]    |                                         ^^^^ help: consider prefixing with an underscore: `_next`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]  --> src/middleware.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]   |               ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]  --> src/middleware.rs:4:28
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]   |                            ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `next`
[INFO] [stderr]  --> src/middleware.rs:4:41
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn invoke(res: String, req: String, next: String) {}
[INFO] [stderr]   |                                         ^^^^ help: consider prefixing with an underscore: `_next`
[INFO] [stderr] 
[INFO] [stderr] warning: method `Use` should have a snake case name
[INFO] [stderr]   --> src/express.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn Use() -> () {}
[INFO] [stderr]    |            ^^^ help: convert the identifier to snake case: `use`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "4c21d15c8304d0cb341f8c84edbe574d6743d7b5a177c11a202c7b7b68110b26"`
[INFO] running `"docker" "rm" "-f" "4c21d15c8304d0cb341f8c84edbe574d6743d7b5a177c11a202c7b7b68110b26"`
[INFO] [stdout] 4c21d15c8304d0cb341f8c84edbe574d6743d7b5a177c11a202c7b7b68110b26