[INFO] crate express 0.0.2 is already in cache
[INFO] extracting crate express 0.0.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/express/0.0.2
[INFO] extracting crate express 0.0.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/express/0.0.2
[INFO] validating manifest of express-0.0.2 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of express-0.0.2 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/reg/express/0.0.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing express-0.0.2 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 91a5844b57fe0984b6ba9dba4e2e893aeb7bb9fb39bfc861efae4be1d2cdd28c
[INFO] running `"docker" "start" "-a" "91a5844b57fe0984b6ba9dba4e2e893aeb7bb9fb39bfc861efae4be1d2cdd28c"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `"docker" "inspect" "91a5844b57fe0984b6ba9dba4e2e893aeb7bb9fb39bfc861efae4be1d2cdd28c"`
[INFO] running `"docker" "rm" "-f" "91a5844b57fe0984b6ba9dba4e2e893aeb7bb9fb39bfc861efae4be1d2cdd28c"`
[INFO] [stdout] 91a5844b57fe0984b6ba9dba4e2e893aeb7bb9fb39bfc861efae4be1d2cdd28c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cd647f76c23d798835113757f88e4a33a89d5f9e65a1c7ab4345f35a374104a7
[INFO] running `"docker" "start" "-a" "cd647f76c23d798835113757f88e4a33a89d5f9e65a1c7ab4345f35a374104a7"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "cd647f76c23d798835113757f88e4a33a89d5f9e65a1c7ab4345f35a374104a7"`
[INFO] running `"docker" "rm" "-f" "cd647f76c23d798835113757f88e4a33a89d5f9e65a1c7ab4345f35a374104a7"`
[INFO] [stdout] cd647f76c23d798835113757f88e4a33a89d5f9e65a1c7ab4345f35a374104a7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d7e518c6f76c0bf8ee1434ebf5e79d76ab8a8203803cff60e44e820f7cabcb0e
[INFO] running `"docker" "start" "-a" "d7e518c6f76c0bf8ee1434ebf5e79d76ab8a8203803cff60e44e820f7cabcb0e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/express-9b7ca40fd371b6b4
[INFO] [stderr]    Doc-tests express
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d7e518c6f76c0bf8ee1434ebf5e79d76ab8a8203803cff60e44e820f7cabcb0e"`
[INFO] running `"docker" "rm" "-f" "d7e518c6f76c0bf8ee1434ebf5e79d76ab8a8203803cff60e44e820f7cabcb0e"`
[INFO] [stdout] d7e518c6f76c0bf8ee1434ebf5e79d76ab8a8203803cff60e44e820f7cabcb0e