[INFO] updating cached repository Takamichi-tsutsumi/pong
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Takamichi-tsutsumi/pong
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Takamichi-tsutsumi/pong" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Takamichi-tsutsumi/pong"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Takamichi-tsutsumi/pong'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Takamichi-tsutsumi/pong" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Takamichi-tsutsumi/pong"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Takamichi-tsutsumi/pong'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2916eb982cbc13624f010d83588f026a36febd67
[INFO] sha for GitHub repo Takamichi-tsutsumi/pong: 2916eb982cbc13624f010d83588f026a36febd67
[INFO] validating manifest of Takamichi-tsutsumi/pong 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 Takamichi-tsutsumi/pong 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 Takamichi-tsutsumi/pong
[INFO] finished frobbing Takamichi-tsutsumi/pong
[INFO] frobbed toml for Takamichi-tsutsumi/pong written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Takamichi-tsutsumi/pong/Cargo.toml
[INFO] started frobbing Takamichi-tsutsumi/pong
[INFO] finished frobbing Takamichi-tsutsumi/pong
[INFO] frobbed toml for Takamichi-tsutsumi/pong written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Takamichi-tsutsumi/pong/Cargo.toml
[INFO] crate Takamichi-tsutsumi/pong 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 Takamichi-tsutsumi/pong against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Takamichi-tsutsumi/pong:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 3b0ecd1e091fc01a79ddca925dfc7971557069b89329b1fe1436f149ba69ce97
[INFO] running `"docker" "start" "-a" "3b0ecd1e091fc01a79ddca925dfc7971557069b89329b1fe1436f149ba69ce97"`
[INFO] [stderr]    Compiling pong v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/main.rs:25:14
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let (tx, rx) = channel();
[INFO] [stderr]    |              ^^ help: consider prefixing with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:13:22
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
[INFO] [stderr]    |                                    ----^^^
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `"docker" "inspect" "3b0ecd1e091fc01a79ddca925dfc7971557069b89329b1fe1436f149ba69ce97"`
[INFO] running `"docker" "rm" "-f" "3b0ecd1e091fc01a79ddca925dfc7971557069b89329b1fe1436f149ba69ce97"`
[INFO] [stdout] 3b0ecd1e091fc01a79ddca925dfc7971557069b89329b1fe1436f149ba69ce97
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Takamichi-tsutsumi/pong:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4087a13071f35d924c3c270f3427c2117f1f7d5ec65f5dff1767c0f2b6642228
[INFO] running `"docker" "start" "-a" "4087a13071f35d924c3c270f3427c2117f1f7d5ec65f5dff1767c0f2b6642228"`
[INFO] [stderr]    Compiling pong v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/main.rs:25:14
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let (tx, rx) = channel();
[INFO] [stderr]    |              ^^ help: consider prefixing with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:13:22
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn handle(&self, req: Request, mut res: Response) {
[INFO] [stderr]    |                                    ----^^^
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "4087a13071f35d924c3c270f3427c2117f1f7d5ec65f5dff1767c0f2b6642228"`
[INFO] running `"docker" "rm" "-f" "4087a13071f35d924c3c270f3427c2117f1f7d5ec65f5dff1767c0f2b6642228"`
[INFO] [stdout] 4087a13071f35d924c3c270f3427c2117f1f7d5ec65f5dff1767c0f2b6642228
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Takamichi-tsutsumi/pong:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] f53732277f92928d70bd5100600e7d63ff9a583d2e8864b8fb99ca5d0b35f506
[INFO] running `"docker" "start" "-a" "f53732277f92928d70bd5100600e7d63ff9a583d2e8864b8fb99ca5d0b35f506"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pong-d9a1c1bacd8d3a54
[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" "f53732277f92928d70bd5100600e7d63ff9a583d2e8864b8fb99ca5d0b35f506"`
[INFO] running `"docker" "rm" "-f" "f53732277f92928d70bd5100600e7d63ff9a583d2e8864b8fb99ca5d0b35f506"`
[INFO] [stdout] f53732277f92928d70bd5100600e7d63ff9a583d2e8864b8fb99ca5d0b35f506