[INFO] updating cached repository ieee0824/web-ex-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ieee0824/web-ex-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ieee0824/web-ex-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/ieee0824/web-ex-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ieee0824/web-ex-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ieee0824/web-ex-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ieee0824/web-ex-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ieee0824/web-ex-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58f64d8154b2c9949d134125d50c4b861ee6a5e0
[INFO] sha for GitHub repo ieee0824/web-ex-rust: 58f64d8154b2c9949d134125d50c4b861ee6a5e0
[INFO] validating manifest of ieee0824/web-ex-rust 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 ieee0824/web-ex-rust 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 ieee0824/web-ex-rust
[INFO] finished frobbing ieee0824/web-ex-rust
[INFO] frobbed toml for ieee0824/web-ex-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/ieee0824/web-ex-rust/Cargo.toml
[INFO] started frobbing ieee0824/web-ex-rust
[INFO] finished frobbing ieee0824/web-ex-rust
[INFO] frobbed toml for ieee0824/web-ex-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ieee0824/web-ex-rust/Cargo.toml
[INFO] crate ieee0824/web-ex-rust already has a lockfile, it will not be regenerated
[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 ieee0824/web-ex-rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ieee0824/web-ex-rust:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 28a3103a86672858ba1c14fc4cc96de7e10256b425f9d9a0ceb53c36b85e9e72
[INFO] running `"docker" "start" "-a" "28a3103a86672858ba1c14fc4cc96de7e10256b425f9d9a0ceb53c36b85e9e72"`
[INFO] [stderr]    Compiling mustache v0.8.2
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling nickel v0.10.1
[INFO] [stderr]    Compiling web-ex-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     server.listen("127.0.0.1:6767");
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.69s
[INFO] running `"docker" "inspect" "28a3103a86672858ba1c14fc4cc96de7e10256b425f9d9a0ceb53c36b85e9e72"`
[INFO] running `"docker" "rm" "-f" "28a3103a86672858ba1c14fc4cc96de7e10256b425f9d9a0ceb53c36b85e9e72"`
[INFO] [stdout] 28a3103a86672858ba1c14fc4cc96de7e10256b425f9d9a0ceb53c36b85e9e72
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ieee0824/web-ex-rust:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2e28c76ad2b16b296d51c4a04fbc0c577e2fab7467619dce271e4a2ceb7588a2
[INFO] running `"docker" "start" "-a" "2e28c76ad2b16b296d51c4a04fbc0c577e2fab7467619dce271e4a2ceb7588a2"`
[INFO] [stderr]    Compiling web-ex-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     server.listen("127.0.0.1:6767");
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "2e28c76ad2b16b296d51c4a04fbc0c577e2fab7467619dce271e4a2ceb7588a2"`
[INFO] running `"docker" "rm" "-f" "2e28c76ad2b16b296d51c4a04fbc0c577e2fab7467619dce271e4a2ceb7588a2"`
[INFO] [stdout] 2e28c76ad2b16b296d51c4a04fbc0c577e2fab7467619dce271e4a2ceb7588a2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ieee0824/web-ex-rust:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 197d7f994eb1474757d7a8808e738d6a080d52bd69c79cdca597b80afd675d27
[INFO] running `"docker" "start" "-a" "197d7f994eb1474757d7a8808e738d6a080d52bd69c79cdca597b80afd675d27"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/web_ex_rust-3fe09fa87858dd8e
[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" "197d7f994eb1474757d7a8808e738d6a080d52bd69c79cdca597b80afd675d27"`
[INFO] running `"docker" "rm" "-f" "197d7f994eb1474757d7a8808e738d6a080d52bd69c79cdca597b80afd675d27"`
[INFO] [stdout] 197d7f994eb1474757d7a8808e738d6a080d52bd69c79cdca597b80afd675d27