[INFO] updating cached repository https://github.com/buntine/pfnp-course
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7cc87ac5307628e4f68dfe8d3a49e560bd248ed
[INFO] checking buntine/pfnp-course against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuntine%2Fpfnp-course" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  67% (55/82)   
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Checking out files: 100% (82/82), done.
[INFO] validating manifest of git repo https://github.com/buntine/pfnp-course on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/buntine/pfnp-course
[INFO] finished tweaking git repo https://github.com/buntine/pfnp-course
[INFO] tweaked toml for git repo https://github.com/buntine/pfnp-course written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/buntine/pfnp-course already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-10/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f1e602219948e22c2b34ce0343f86cae98e80ebcb4246b39b50cf329f44609ce
[INFO] running `"docker" "start" "-a" "f1e602219948e22c2b34ce0343f86cae98e80ebcb4246b39b50cf329f44609ce"`
[INFO] [stderr]     Checking nickel v0.11.0
[INFO] [stderr]     Checking pfnp-course v0.1.0 (/opt/rustwide/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]    | |_____^ unreachable expression
[INFO] [stderr]    | 
[INFO] [stderr]   ::: <::nickel::macros::middleware::as_block macros>:1:19
[INFO] [stderr]    |
[INFO] [stderr] 1  |   ($ b : block) => ($ b)
[INFO] [stderr]    |                     --- any code following this expression is unreachable
[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: 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]    | |_____^ unreachable expression
[INFO] [stderr]    | 
[INFO] [stderr]   ::: <::nickel::macros::middleware::as_block macros>:1:19
[INFO] [stderr]    |
[INFO] [stderr] 1  |   ($ b : block) => ($ b)
[INFO] [stderr]    |                     --- any code following this expression is unreachable
[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] 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 4.86s
[INFO] running `"docker" "inspect" "f1e602219948e22c2b34ce0343f86cae98e80ebcb4246b39b50cf329f44609ce"`
[INFO] running `"docker" "rm" "-f" "f1e602219948e22c2b34ce0343f86cae98e80ebcb4246b39b50cf329f44609ce"`
[INFO] [stdout] f1e602219948e22c2b34ce0343f86cae98e80ebcb4246b39b50cf329f44609ce