[INFO] updating cached repository https://github.com/mcannizz/spillway
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 42b7ea015fb0e9cac7103d063a0fa84758f7c57c
[INFO] checking mcannizz/spillway against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcannizz%2Fspillway" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcannizz/spillway on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mcannizz/spillway
[INFO] finished tweaking git repo https://github.com/mcannizz/spillway
[INFO] tweaked toml for git repo https://github.com/mcannizz/spillway written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mcannizz/spillway already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 808d7eef4265da4e244a01664b6804f225c6a476a324144f9174648cbb76d0c5
[INFO] running `"docker" "start" "-a" "808d7eef4265da4e244a01664b6804f225c6a476a324144f9174648cbb76d0c5"`
[INFO] [stderr]     Checking serde v0.9.6
[INFO] [stderr]     Checking itoa v0.3.0
[INFO] [stderr]     Checking dtoa v0.4.0
[INFO] [stderr]     Checking unsafe-any v0.4.1
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling serde_derive v0.9.6
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking hyper v0.10.4
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking router v0.5.1
[INFO] [stderr]     Checking logger v0.3.0
[INFO] [stderr]     Checking serde_json v0.9.5
[INFO] [stderr]     Checking spillway v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use] extern crate serde_json;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn stat_handler(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:85:17
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rate_handler(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:89:19
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn buffer_handler(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:93:15
[INFO] [stderr]    |
[INFO] [stderr] 93 | fn get_target(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:97:15
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn set_target(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `admin_server`
[INFO] [stderr]    --> src/main.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let admin_server = Iron::new(router).http("localhost:6667");
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_admin_server`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         req.body.read_to_end(&mut body);
[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 `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use] extern crate serde_json;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn stat_handler(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:85:17
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn rate_handler(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:89:19
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn buffer_handler(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:93:15
[INFO] [stderr]    |
[INFO] [stderr] 93 | fn get_target(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:97:15
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn set_target(req: &mut Request) -> IronResult<Response> {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `admin_server`
[INFO] [stderr]    --> src/main.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let admin_server = Iron::new(router).http("localhost:6667");
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_admin_server`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         req.body.read_to_end(&mut body);
[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 19.63s
[INFO] running `"docker" "inspect" "808d7eef4265da4e244a01664b6804f225c6a476a324144f9174648cbb76d0c5"`
[INFO] running `"docker" "rm" "-f" "808d7eef4265da4e244a01664b6804f225c6a476a324144f9174648cbb76d0c5"`
[INFO] [stdout] 808d7eef4265da4e244a01664b6804f225c6a476a324144f9174648cbb76d0c5