[INFO] updating cached repository Noah2610/rust-book-webserver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Noah2610/rust-book-webserver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Noah2610/rust-book-webserver" "work/ex/beta-1.37-6/sources/1.36.0/gh/Noah2610/rust-book-webserver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Noah2610/rust-book-webserver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Noah2610/rust-book-webserver" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Noah2610/rust-book-webserver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Noah2610/rust-book-webserver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 75cb49873c688c3e610cf8173817e01b0af0eb48
[INFO] sha for GitHub repo Noah2610/rust-book-webserver: 75cb49873c688c3e610cf8173817e01b0af0eb48
[INFO] validating manifest of Noah2610/rust-book-webserver on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Noah2610/rust-book-webserver on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Noah2610/rust-book-webserver
[INFO] finished frobbing Noah2610/rust-book-webserver
[INFO] frobbed toml for Noah2610/rust-book-webserver written to work/ex/beta-1.37-6/sources/1.36.0/gh/Noah2610/rust-book-webserver/Cargo.toml
[INFO] started frobbing Noah2610/rust-book-webserver
[INFO] finished frobbing Noah2610/rust-book-webserver
[INFO] frobbed toml for Noah2610/rust-book-webserver written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Noah2610/rust-book-webserver/Cargo.toml
[INFO] crate Noah2610/rust-book-webserver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Noah2610/rust-book-webserver against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Noah2610/rust-book-webserver:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 20d603557a3a0e9282bf5950cbf7d82a70710a9ef5deae2636b5c9c655e2b082
[INFO] running `"docker" "start" "-a" "20d603557a3a0e9282bf5950cbf7d82a70710a9ef5deae2636b5c9c655e2b082"`
[INFO] [stderr]    Compiling book-webserver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `threads`
[INFO] [stderr]  --> src/thread_pool.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     threads: 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/thread_pool.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     id:     usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread`
[INFO] [stderr]   --> src/thread_pool.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "20d603557a3a0e9282bf5950cbf7d82a70710a9ef5deae2636b5c9c655e2b082"`
[INFO] running `"docker" "rm" "-f" "20d603557a3a0e9282bf5950cbf7d82a70710a9ef5deae2636b5c9c655e2b082"`
[INFO] [stdout] 20d603557a3a0e9282bf5950cbf7d82a70710a9ef5deae2636b5c9c655e2b082
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Noah2610/rust-book-webserver:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] fc2b3ace7b03f49e41cca6ca1551829ec2743263bf1f3c0751775d78c7c79ab0
[INFO] running `"docker" "start" "-a" "fc2b3ace7b03f49e41cca6ca1551829ec2743263bf1f3c0751775d78c7c79ab0"`
[INFO] [stderr]    Compiling book-webserver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `threads`
[INFO] [stderr]  --> src/thread_pool.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     threads: 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/thread_pool.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     id:     usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread`
[INFO] [stderr]   --> src/thread_pool.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "fc2b3ace7b03f49e41cca6ca1551829ec2743263bf1f3c0751775d78c7c79ab0"`
[INFO] running `"docker" "rm" "-f" "fc2b3ace7b03f49e41cca6ca1551829ec2743263bf1f3c0751775d78c7c79ab0"`
[INFO] [stdout] fc2b3ace7b03f49e41cca6ca1551829ec2743263bf1f3c0751775d78c7c79ab0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Noah2610/rust-book-webserver:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 8d488e4eba7eb91dbc4953a296cc783001650638e688c01d45b3485749cd00a1
[INFO] running `"docker" "start" "-a" "8d488e4eba7eb91dbc4953a296cc783001650638e688c01d45b3485749cd00a1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/book_webserver-d5f64ff1c98ba84d
[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" "8d488e4eba7eb91dbc4953a296cc783001650638e688c01d45b3485749cd00a1"`
[INFO] running `"docker" "rm" "-f" "8d488e4eba7eb91dbc4953a296cc783001650638e688c01d45b3485749cd00a1"`
[INFO] [stdout] 8d488e4eba7eb91dbc4953a296cc783001650638e688c01d45b3485749cd00a1