[INFO] updating cached repository zhenhuanlee/simple_server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zhenhuanlee/simple_server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zhenhuanlee/simple_server" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zhenhuanlee/simple_server"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zhenhuanlee/simple_server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zhenhuanlee/simple_server" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/zhenhuanlee/simple_server"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/zhenhuanlee/simple_server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20cdf7da76639cd291c2c6a8d9863754973598f4
[INFO] sha for GitHub repo zhenhuanlee/simple_server: 20cdf7da76639cd291c2c6a8d9863754973598f4
[INFO] validating manifest of zhenhuanlee/simple_server 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 zhenhuanlee/simple_server 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 zhenhuanlee/simple_server
[INFO] finished frobbing zhenhuanlee/simple_server
[INFO] frobbed toml for zhenhuanlee/simple_server written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zhenhuanlee/simple_server/Cargo.toml
[INFO] started frobbing zhenhuanlee/simple_server
[INFO] finished frobbing zhenhuanlee/simple_server
[INFO] frobbed toml for zhenhuanlee/simple_server written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/zhenhuanlee/simple_server/Cargo.toml
[INFO] crate zhenhuanlee/simple_server 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 zhenhuanlee/simple_server against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zhenhuanlee/simple_server:/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] b200d5a9a95e07e26d3394911dbd4a314a63a3c060ca6c7dda4f07f2e19cf9a7
[INFO] running `"docker" "start" "-a" "b200d5a9a95e07e26d3394911dbd4a314a63a3c060ca6c7dda4f07f2e19cf9a7"`
[INFO] [stderr]    Compiling simple_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `workers`
[INFO] [stderr]  --> src/hello/lib.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   workers: Vec<Worker>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/hello/lib.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   id: usize,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread`
[INFO] [stderr]   --> src/hello/lib.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   thread: thread::JoinHandle<()>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "b200d5a9a95e07e26d3394911dbd4a314a63a3c060ca6c7dda4f07f2e19cf9a7"`
[INFO] running `"docker" "rm" "-f" "b200d5a9a95e07e26d3394911dbd4a314a63a3c060ca6c7dda4f07f2e19cf9a7"`
[INFO] [stdout] b200d5a9a95e07e26d3394911dbd4a314a63a3c060ca6c7dda4f07f2e19cf9a7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zhenhuanlee/simple_server:/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] 68ac9845ac258a1b45c74c4ae901ad540a559ad99212ff806bcb9470226643f1
[INFO] running `"docker" "start" "-a" "68ac9845ac258a1b45c74c4ae901ad540a559ad99212ff806bcb9470226643f1"`
[INFO] [stderr]    Compiling simple_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `workers`
[INFO] [stderr]  --> src/hello/lib.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   workers: Vec<Worker>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/hello/lib.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   id: usize,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread`
[INFO] [stderr]   --> src/hello/lib.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   thread: thread::JoinHandle<()>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "68ac9845ac258a1b45c74c4ae901ad540a559ad99212ff806bcb9470226643f1"`
[INFO] running `"docker" "rm" "-f" "68ac9845ac258a1b45c74c4ae901ad540a559ad99212ff806bcb9470226643f1"`
[INFO] [stdout] 68ac9845ac258a1b45c74c4ae901ad540a559ad99212ff806bcb9470226643f1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zhenhuanlee/simple_server:/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] fffe01b6ce5e218213a00797eb516c60ea68a43c456b6d6941d76add534a449e
[INFO] running `"docker" "start" "-a" "fffe01b6ce5e218213a00797eb516c60ea68a43c456b6d6941d76add534a449e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello-80476162f6c559bd
[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] [stderr]      Running /opt/crater/target/debug/deps/simple_server-52a758d6e11ea172
[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] [stderr]    Doc-tests hello
[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" "fffe01b6ce5e218213a00797eb516c60ea68a43c456b6d6941d76add534a449e"`
[INFO] running `"docker" "rm" "-f" "fffe01b6ce5e218213a00797eb516c60ea68a43c456b6d6941d76add534a449e"`
[INFO] [stdout] fffe01b6ce5e218213a00797eb516c60ea68a43c456b6d6941d76add534a449e