[INFO] updating cached repository rongfengliang/rustdemoapp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rongfengliang/rustdemoapp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rongfengliang/rustdemoapp" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rongfengliang/rustdemoapp"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rongfengliang/rustdemoapp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rongfengliang/rustdemoapp" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rongfengliang/rustdemoapp"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rongfengliang/rustdemoapp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0c3f2a9cb0a589928e1f68e074c690fb0815f81d
[INFO] sha for GitHub repo rongfengliang/rustdemoapp: 0c3f2a9cb0a589928e1f68e074c690fb0815f81d
[INFO] validating manifest of rongfengliang/rustdemoapp on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rongfengliang/rustdemoapp on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rongfengliang/rustdemoapp
[INFO] finished frobbing rongfengliang/rustdemoapp
[INFO] frobbed toml for rongfengliang/rustdemoapp written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rongfengliang/rustdemoapp/Cargo.toml
[INFO] started frobbing rongfengliang/rustdemoapp
[INFO] finished frobbing rongfengliang/rustdemoapp
[INFO] frobbed toml for rongfengliang/rustdemoapp written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/rongfengliang/rustdemoapp/Cargo.toml
[INFO] crate rongfengliang/rustdemoapp has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rongfengliang/rustdemoapp against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rongfengliang/rustdemoapp:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 5289b0555a0a3104f87a6d73e7f502c5f3e57528bf190d72672513f1f8cca5e6
[INFO] running `"docker" "start" "-a" "5289b0555a0a3104f87a6d73e7f502c5f3e57528bf190d72672513f1f8cca5e6"`
[INFO] [stderr]    Compiling pest v1.0.3
[INFO] [stderr]    Compiling pest_derive v1.0.3
[INFO] [stderr]    Compiling handlebars v0.32.0
[INFO] [stderr]    Compiling first v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/main.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn appdemo(name:&str)->&str{
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn f(n: T) {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn login(&self, name: &str) -> &str {
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `say_demo`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn say_demo(name: &str) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `second`
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn second(){
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.28s
[INFO] running `"docker" "inspect" "5289b0555a0a3104f87a6d73e7f502c5f3e57528bf190d72672513f1f8cca5e6"`
[INFO] running `"docker" "rm" "-f" "5289b0555a0a3104f87a6d73e7f502c5f3e57528bf190d72672513f1f8cca5e6"`
[INFO] [stdout] 5289b0555a0a3104f87a6d73e7f502c5f3e57528bf190d72672513f1f8cca5e6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rongfengliang/rustdemoapp:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] afce5875c28475c1b125aaee8c44dae3045c7358e7140b9726384eed2e3657f0
[INFO] running `"docker" "start" "-a" "afce5875c28475c1b125aaee8c44dae3045c7358e7140b9726384eed2e3657f0"`
[INFO] [stderr]    Compiling first v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/main.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn appdemo(name:&str)->&str{
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn f(n: T) {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn login(&self, name: &str) -> &str {
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `say_demo`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn say_demo(name: &str) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `second`
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn second(){
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "afce5875c28475c1b125aaee8c44dae3045c7358e7140b9726384eed2e3657f0"`
[INFO] running `"docker" "rm" "-f" "afce5875c28475c1b125aaee8c44dae3045c7358e7140b9726384eed2e3657f0"`
[INFO] [stdout] afce5875c28475c1b125aaee8c44dae3045c7358e7140b9726384eed2e3657f0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/rongfengliang/rustdemoapp:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] f39606613c8b6157e1f0e556008e8af1dae9920f9a91d163a5010499af4af0a5
[INFO] running `"docker" "start" "-a" "f39606613c8b6157e1f0e556008e8af1dae9920f9a91d163a5010499af4af0a5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/first-dfaff17a447b8f4b
[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" "f39606613c8b6157e1f0e556008e8af1dae9920f9a91d163a5010499af4af0a5"`
[INFO] running `"docker" "rm" "-f" "f39606613c8b6157e1f0e556008e8af1dae9920f9a91d163a5010499af4af0a5"`
[INFO] [stdout] f39606613c8b6157e1f0e556008e8af1dae9920f9a91d163a5010499af4af0a5