[INFO] cloning repository https://github.com/werdl/servt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/werdl/servt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwerdl%2Fservt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwerdl%2Fservt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b4047d64b6e8600fcfae6575bc75caddeaa0ac7
[INFO] checking werdl/servt against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwerdl%2Fservt" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/werdl/servt on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/werdl/servt
[INFO] finished tweaking git repo https://github.com/werdl/servt
[INFO] tweaked toml for git repo https://github.com/werdl/servt written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/werdl/servt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-process v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea1ca554afb0c38cb6e57e89dd1ccef0d0cecfc08c5312aa5fd3c45eb1b5e871
[INFO] running `Command { std: "docker" "start" "-a" "ea1ca554afb0c38cb6e57e89dd1ccef0d0cecfc08c5312aa5fd3c45eb1b5e871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea1ca554afb0c38cb6e57e89dd1ccef0d0cecfc08c5312aa5fd3c45eb1b5e871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea1ca554afb0c38cb6e57e89dd1ccef0d0cecfc08c5312aa5fd3c45eb1b5e871", kill_on_drop: false }`
[INFO] [stdout] ea1ca554afb0c38cb6e57e89dd1ccef0d0cecfc08c5312aa5fd3c45eb1b5e871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96006a1b3af8cfd235f6c944b765563cb0c3ed74b12f6761221afe417543c5e8
[INFO] running `Command { std: "docker" "start" "-a" "96006a1b3af8cfd235f6c944b765563cb0c3ed74b12f6761221afe417543c5e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking futures-lite v2.2.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.0.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking chrono v0.4.34
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]     Checking async-fs v2.1.1
[INFO] [stderr]     Checking polling v3.4.0
[INFO] [stderr]     Checking async-io v2.3.1
[INFO] [stderr]     Checking async-signal v0.2.5
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking async-process v2.0.1
[INFO] [stderr]     Checking smol v2.0.0
[INFO] [stderr]     Checking servt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `server`
[INFO] [stdout]    --> src/lib.rs:508:17
[INFO] [stdout]     |
[INFO] [stdout] 508 |         let mut server = Server::new(8080, "localhost".to_string());
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:508:13
[INFO] [stdout]     |
[INFO] [stdout] 508 |         let mut server = Server::new(8080, "localhost".to_string());
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `lookup_code` and `is_valid` are never used
[INFO] [stdout]   --> src/status_code.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(crate) trait CodeLookup {
[INFO] [stdout]    |                  ---------- methods in this trait
[INFO] [stdout] 67 |     fn lookup(&self, code: u16) -> Option<&'static str>;
[INFO] [stdout] 68 |     fn lookup_code(&self, code: &'static str) -> Option<u16>;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 69 |
[INFO] [stdout] 70 |     fn is_valid(&self, code: u16) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `lookup_code` and `is_valid` are never used
[INFO] [stdout]   --> src/status_code.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(crate) trait CodeLookup {
[INFO] [stdout]    |                  ---------- methods in this trait
[INFO] [stdout] 67 |     fn lookup(&self, code: u16) -> Option<&'static str>;
[INFO] [stdout] 68 |     fn lookup_code(&self, code: &'static str) -> Option<u16>;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 69 |
[INFO] [stdout] 70 |     fn is_valid(&self, code: u16) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.77s
[INFO] running `Command { std: "docker" "inspect" "96006a1b3af8cfd235f6c944b765563cb0c3ed74b12f6761221afe417543c5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96006a1b3af8cfd235f6c944b765563cb0c3ed74b12f6761221afe417543c5e8", kill_on_drop: false }`
[INFO] [stdout] 96006a1b3af8cfd235f6c944b765563cb0c3ed74b12f6761221afe417543c5e8