[INFO] updating cached repository devoidfury/rust-rserv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/devoidfury/rust-rserv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/devoidfury/rust-rserv" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/devoidfury/rust-rserv"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/devoidfury/rust-rserv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/devoidfury/rust-rserv" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/devoidfury/rust-rserv"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/devoidfury/rust-rserv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 791b15e3648b426d2c1886ec4be40c42ede587f5
[INFO] sha for GitHub repo devoidfury/rust-rserv: 791b15e3648b426d2c1886ec4be40c42ede587f5
[INFO] validating manifest of devoidfury/rust-rserv on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of devoidfury/rust-rserv on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing devoidfury/rust-rserv
[INFO] finished frobbing devoidfury/rust-rserv
[INFO] frobbed toml for devoidfury/rust-rserv written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/devoidfury/rust-rserv/Cargo.toml
[INFO] started frobbing devoidfury/rust-rserv
[INFO] finished frobbing devoidfury/rust-rserv
[INFO] frobbed toml for devoidfury/rust-rserv written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/devoidfury/rust-rserv/Cargo.toml
[INFO] crate devoidfury/rust-rserv already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/devoidfury/rust-rserv/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking devoidfury/rust-rserv against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-3/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/devoidfury/rust-rserv:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d937fbc09ca210bec055639c93a07b3ae4f9c24a46c5505431fb9ae444bae829
[INFO] running `"docker" "start" "-a" "d937fbc09ca210bec055639c93a07b3ae4f9c24a46c5505431fb9ae444bae829"`
[INFO] [stderr]     Checking websrv v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/server.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Shutdown`
[INFO] [stderr]  --> src/server.rs:4:40
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::net::{TcpListener, TcpStream, Shutdown};
[INFO] [stderr]   |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sync_channel`
[INFO] [stderr]   --> src/server.rs:11:32
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::mpsc::{channel, sync_channel, Sender};
[INFO] [stderr]    |                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/server.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Shutdown`
[INFO] [stderr]  --> src/server.rs:4:40
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::net::{TcpListener, TcpStream, Shutdown};
[INFO] [stderr]   |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sync_channel`
[INFO] [stderr]   --> src/server.rs:11:32
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::mpsc::{channel, sync_channel, Sender};
[INFO] [stderr]    |                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Next`
[INFO] [stderr]  --> src/middleware.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Next,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Err`
[INFO] [stderr]  --> src/middleware.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Err
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `jobs`
[INFO] [stderr]   --> src/server.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     jobs: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `idx`
[INFO] [stderr]   --> src/server.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     idx: usize
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Next`
[INFO] [stderr]  --> src/middleware.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Next,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Err`
[INFO] [stderr]  --> src/middleware.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Err
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `jobs`
[INFO] [stderr]   --> src/server.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     jobs: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `idx`
[INFO] [stderr]   --> src/server.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     idx: usize
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/server.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     done_tx.send(worker_idx);
[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/server.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     done_tx.send(worker_idx);
[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 0.60s
[INFO] running `"docker" "inspect" "d937fbc09ca210bec055639c93a07b3ae4f9c24a46c5505431fb9ae444bae829"`
[INFO] running `"docker" "rm" "-f" "d937fbc09ca210bec055639c93a07b3ae4f9c24a46c5505431fb9ae444bae829"`
[INFO] [stdout] d937fbc09ca210bec055639c93a07b3ae4f9c24a46c5505431fb9ae444bae829