[INFO] cloning repository https://github.com/vlbezak/rust-async-router
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vlbezak/rust-async-router" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlbezak%2Frust-async-router", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlbezak%2Frust-async-router'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f8fdf4370d7baba67741faad4b2bc0da007a49a
[INFO] checking vlbezak/rust-async-router against master#eb10639928a2781cf0a12440007fbcc1e3a6888f for pr-127827-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlbezak%2Frust-async-router" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vlbezak/rust-async-router on toolchain eb10639928a2781cf0a12440007fbcc1e3a6888f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vlbezak/rust-async-router
[INFO] finished tweaking git repo https://github.com/vlbezak/rust-async-router
[INFO] tweaked toml for git repo https://github.com/vlbezak/rust-async-router written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vlbezak/rust-async-router 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" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d938d7044513537e7cb30b16e9290cf986eee49f99047aab97542454207e4769
[INFO] running `Command { std: "docker" "start" "-a" "d938d7044513537e7cb30b16e9290cf986eee49f99047aab97542454207e4769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d938d7044513537e7cb30b16e9290cf986eee49f99047aab97542454207e4769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d938d7044513537e7cb30b16e9290cf986eee49f99047aab97542454207e4769", kill_on_drop: false }`
[INFO] [stdout] d938d7044513537e7cb30b16e9290cf986eee49f99047aab97542454207e4769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 777c29929b3f36ed942592927d58e496c09d88f62395d59e28d7bc9d0d4bbbd9
[INFO] running `Command { std: "docker" "start" "-a" "777c29929b3f36ed942592927d58e496c09d88f62395d59e28d7bc9d0d4bbbd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking tokio v1.38.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rust-async-router v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ex`
[INFO] [stdout]   --> src/fs/mod.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |         .map_err(|ex| "error while reading dir")?
[INFO] [stdout]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_ex`
[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/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut router = Router::new()
[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: function `list_files_with_str_error` is never used
[INFO] [stdout]   --> src/fs/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn list_files_with_str_error(path: &str) -> Result<Vec<String>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_files_with_custom_error` is never used
[INFO] [stdout]   --> src/fs/mod.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn list_files_with_custom_error(path: &str) -> Result<Vec<String>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `key_num` is never used
[INFO] [stdout]  --> src/newfeatures/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn key_num(item: &str) -> Result<(&str, i32)> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ex`
[INFO] [stdout]   --> src/fs/mod.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |         .map_err(|ex| "error while reading dir")?
[INFO] [stdout]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_ex`
[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/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut router = Router::new()
[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: function `list_files_with_str_error` is never used
[INFO] [stdout]   --> src/fs/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn list_files_with_str_error(path: &str) -> Result<Vec<String>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_files_with_custom_error` is never used
[INFO] [stdout]   --> src/fs/mod.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn list_files_with_custom_error(path: &str) -> Result<Vec<String>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `key_num` is never used
[INFO] [stdout]  --> src/newfeatures/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn key_num(item: &str) -> Result<(&str, i32)> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.76s
[INFO] running `Command { std: "docker" "inspect" "777c29929b3f36ed942592927d58e496c09d88f62395d59e28d7bc9d0d4bbbd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "777c29929b3f36ed942592927d58e496c09d88f62395d59e28d7bc9d0d4bbbd9", kill_on_drop: false }`
[INFO] [stdout] 777c29929b3f36ed942592927d58e496c09d88f62395d59e28d7bc9d0d4bbbd9