[INFO] updating cached repository buntine/pfnp-course
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/buntine/pfnp-course
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/buntine/pfnp-course" "work/ex/beta-1.38-1/sources/1.37.0/gh/buntine/pfnp-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/buntine/pfnp-course'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/buntine/pfnp-course" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/buntine/pfnp-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/buntine/pfnp-course'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7cc87ac5307628e4f68dfe8d3a49e560bd248ed
[INFO] sha for GitHub repo buntine/pfnp-course: b7cc87ac5307628e4f68dfe8d3a49e560bd248ed
[INFO] validating manifest of buntine/pfnp-course 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 buntine/pfnp-course 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 buntine/pfnp-course
[INFO] finished frobbing buntine/pfnp-course
[INFO] frobbed toml for buntine/pfnp-course written to work/ex/beta-1.38-1/sources/1.37.0/gh/buntine/pfnp-course/Cargo.toml
[INFO] started frobbing buntine/pfnp-course
[INFO] finished frobbing buntine/pfnp-course
[INFO] frobbed toml for buntine/pfnp-course written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/buntine/pfnp-course/Cargo.toml
[INFO] crate buntine/pfnp-course 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/buntine/pfnp-course/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 buntine/pfnp-course 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/buntine/pfnp-course:/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] 91c3845836c8e3ff2c9f74215d9a73d95897b1c0cc50c036be7fe8abf4c9e9ac
[INFO] running `"docker" "start" "-a" "91c3845836c8e3ff2c9f74215d9a73d95897b1c0cc50c036be7fe8abf4c9e9ac"`
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling nickel v0.11.0
[INFO] [stderr]    Compiling pfnp-course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:11:35
[INFO] [stderr]    |
[INFO] [stderr] 11 |       router.get("/course/:course", middleware! { |req, res|
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 12 | |         let mut data = HashMap::new();
[INFO] [stderr] 13 | |         let course = req.param("course").unwrap();
[INFO] [stderr] 14 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |         return res.render(format!("views/{}.tpl", course), &data);
[INFO] [stderr] 18 | |     });
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     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 11.61s
[INFO] running `"docker" "inspect" "91c3845836c8e3ff2c9f74215d9a73d95897b1c0cc50c036be7fe8abf4c9e9ac"`
[INFO] running `"docker" "rm" "-f" "91c3845836c8e3ff2c9f74215d9a73d95897b1c0cc50c036be7fe8abf4c9e9ac"`
[INFO] [stdout] 91c3845836c8e3ff2c9f74215d9a73d95897b1c0cc50c036be7fe8abf4c9e9ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/buntine/pfnp-course:/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] 264c5429b2397b6389bec929ec910d2d727f07b09a4ab2b710208a56d74baf64
[INFO] running `"docker" "start" "-a" "264c5429b2397b6389bec929ec910d2d727f07b09a4ab2b710208a56d74baf64"`
[INFO] [stderr]    Compiling pfnp-course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:11:35
[INFO] [stderr]    |
[INFO] [stderr] 11 |       router.get("/course/:course", middleware! { |req, res|
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 12 | |         let mut data = HashMap::new();
[INFO] [stderr] 13 | |         let course = req.param("course").unwrap();
[INFO] [stderr] 14 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |         return res.render(format!("views/{}.tpl", course), &data);
[INFO] [stderr] 18 | |     });
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     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 1.48s
[INFO] running `"docker" "inspect" "264c5429b2397b6389bec929ec910d2d727f07b09a4ab2b710208a56d74baf64"`
[INFO] running `"docker" "rm" "-f" "264c5429b2397b6389bec929ec910d2d727f07b09a4ab2b710208a56d74baf64"`
[INFO] [stdout] 264c5429b2397b6389bec929ec910d2d727f07b09a4ab2b710208a56d74baf64
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/buntine/pfnp-course:/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] ff4e1e2f51b258af8644c2232664fa288935517021b9348222b148ef23caff39
[INFO] running `"docker" "start" "-a" "ff4e1e2f51b258af8644c2232664fa288935517021b9348222b148ef23caff39"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pfnp_course-c6c6c338730d3264
[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" "ff4e1e2f51b258af8644c2232664fa288935517021b9348222b148ef23caff39"`
[INFO] running `"docker" "rm" "-f" "ff4e1e2f51b258af8644c2232664fa288935517021b9348222b148ef23caff39"`
[INFO] [stdout] ff4e1e2f51b258af8644c2232664fa288935517021b9348222b148ef23caff39