[INFO] updating cached repository AlexanderElias/rust-nickel-mustache
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AlexanderElias/rust-nickel-mustache
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AlexanderElias/rust-nickel-mustache" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/AlexanderElias/rust-nickel-mustache"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/AlexanderElias/rust-nickel-mustache'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AlexanderElias/rust-nickel-mustache" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/AlexanderElias/rust-nickel-mustache"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/AlexanderElias/rust-nickel-mustache'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2735d081a4134d775e4e87e57b481adcf11dcac3
[INFO] sha for GitHub repo AlexanderElias/rust-nickel-mustache: 2735d081a4134d775e4e87e57b481adcf11dcac3
[INFO] validating manifest of AlexanderElias/rust-nickel-mustache on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AlexanderElias/rust-nickel-mustache on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AlexanderElias/rust-nickel-mustache
[INFO] finished frobbing AlexanderElias/rust-nickel-mustache
[INFO] frobbed toml for AlexanderElias/rust-nickel-mustache written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/AlexanderElias/rust-nickel-mustache/Cargo.toml
[INFO] started frobbing AlexanderElias/rust-nickel-mustache
[INFO] finished frobbing AlexanderElias/rust-nickel-mustache
[INFO] frobbed toml for AlexanderElias/rust-nickel-mustache written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/AlexanderElias/rust-nickel-mustache/Cargo.toml
[INFO] crate AlexanderElias/rust-nickel-mustache already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/AlexanderElias/rust-nickel-mustache/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking AlexanderElias/rust-nickel-mustache against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/AlexanderElias/rust-nickel-mustache:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7060929a0aedc549aec8ad477f6f54b61e23c2f934ad274a9c5de5877635394d
[INFO] running `"docker" "start" "-a" "7060929a0aedc549aec8ad477f6f54b61e23c2f934ad274a9c5de5877635394d"`
[INFO] [stderr]     Checking nickel-template v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0277]: `std::option::Option<&str>` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> src/main.rs:22:34
[INFO] [stderr]    |
[INFO] [stderr] 22 |             format!("Hello : {}",req.param("name"))
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^ `std::option::Option<&str>` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<&str>`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |       server.get("/", middleware! { |req, res|
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 29 | |
[INFO] [stderr] 30 | |         let mut data = HashMap::<&str, &str>::new();
[INFO] [stderr] 31 | |         data.insert("title","Index");
[INFO] [stderr] 32 | |
[INFO] [stderr] 33 | |         return res.render("views/index.html", &data);
[INFO] [stderr] 34 | |     });
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this error 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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `nickel-template`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: `std::option::Option<&str>` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> src/main.rs:22:34
[INFO] [stderr]    |
[INFO] [stderr] 22 |             format!("Hello : {}",req.param("name"))
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^ `std::option::Option<&str>` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<&str>`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr]    = note: required by `std::fmt::Display::fmt`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |       server.get("/", middleware! { |req, res|
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 29 | |
[INFO] [stderr] 30 | |         let mut data = HashMap::<&str, &str>::new();
[INFO] [stderr] 31 | |         data.insert("title","Index");
[INFO] [stderr] 32 | |
[INFO] [stderr] 33 | |         return res.render("views/index.html", &data);
[INFO] [stderr] 34 | |     });
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this error 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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `nickel-template`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7060929a0aedc549aec8ad477f6f54b61e23c2f934ad274a9c5de5877635394d"`
[INFO] running `"docker" "rm" "-f" "7060929a0aedc549aec8ad477f6f54b61e23c2f934ad274a9c5de5877635394d"`
[INFO] [stdout] 7060929a0aedc549aec8ad477f6f54b61e23c2f934ad274a9c5de5877635394d