[INFO] cloning repository https://github.com/mikasd/rustserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikasd/rustserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasd%2Frustserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasd%2Frustserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9af7cf60bd1b769bd4e54b4813a1c7b3de52bddf
[INFO] testing mikasd/rustserver against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasd%2Frustserver" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikasd/rustserver on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikasd/rustserver
[INFO] finished tweaking git repo https://github.com/mikasd/rustserver
[INFO] tweaked toml for git repo https://github.com/mikasd/rustserver written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mikasd/rustserver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d7ecd161bb9dfd683daea0f62f1ef443ae25008425fc08c2860266d6937124d
[INFO] running `Command { std: "docker" "start" "-a" "9d7ecd161bb9dfd683daea0f62f1ef443ae25008425fc08c2860266d6937124d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d7ecd161bb9dfd683daea0f62f1ef443ae25008425fc08c2860266d6937124d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d7ecd161bb9dfd683daea0f62f1ef443ae25008425fc08c2860266d6937124d", kill_on_drop: false }`
[INFO] [stdout] 9d7ecd161bb9dfd683daea0f62f1ef443ae25008425fc08c2860266d6937124d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf34b57e571da7e0778ebd88df33aa2bb1cdf578501a6458e5db525775861cf8
[INFO] running `Command { std: "docker" "start" "-a" "bf34b57e571da7e0778ebd88df33aa2bb1cdf578501a6458e5db525775861cf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:33:30
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn execute<F>(&self, f: F)
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     sender: mpsc::Sender<Job>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     id: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread`
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement drops value
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             reciever;
[INFO] [stdout]    |             ^^^^^^^^^ help: use `drop` to clarify the intent: `drop(reciever);`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "bf34b57e571da7e0778ebd88df33aa2bb1cdf578501a6458e5db525775861cf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf34b57e571da7e0778ebd88df33aa2bb1cdf578501a6458e5db525775861cf8", kill_on_drop: false }`
[INFO] [stdout] bf34b57e571da7e0778ebd88df33aa2bb1cdf578501a6458e5db525775861cf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6566ff594bb34a5b91bbc7ca2fdcad90f62df9d323fb6814b8b525b82788781
[INFO] running `Command { std: "docker" "start" "-a" "c6566ff594bb34a5b91bbc7ca2fdcad90f62df9d323fb6814b8b525b82788781", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:33:30
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn execute<F>(&self, f: F)
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     sender: mpsc::Sender<Job>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     id: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread`
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement drops value
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             reciever;
[INFO] [stdout]    |             ^^^^^^^^^ help: use `drop` to clarify the intent: `drop(reciever);`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:33:30
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn execute<F>(&self, f: F)
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     sender: mpsc::Sender<Job>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     id: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread`
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement drops value
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             reciever;
[INFO] [stdout]    |             ^^^^^^^^^ help: use `drop` to clarify the intent: `drop(reciever);`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "c6566ff594bb34a5b91bbc7ca2fdcad90f62df9d323fb6814b8b525b82788781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6566ff594bb34a5b91bbc7ca2fdcad90f62df9d323fb6814b8b525b82788781", kill_on_drop: false }`
[INFO] [stdout] c6566ff594bb34a5b91bbc7ca2fdcad90f62df9d323fb6814b8b525b82788781
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 49f4d2cc4cffd1bdd2967f0bfa736f4bcf44528903b6eabe28f1a96c463e0d2b
[INFO] running `Command { std: "docker" "start" "-a" "49f4d2cc4cffd1bdd2967f0bfa736f4bcf44528903b6eabe28f1a96c463e0d2b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/lib.rs:33:30
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn execute<F>(&self, f: F)
[INFO] [stderr]    |                              ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sender`
[INFO] [stderr]  --> src/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     sender: mpsc::Sender<Job>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/lib.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/lib.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: path statement drops value
[INFO] [stderr]   --> src/lib.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |             reciever;
[INFO] [stderr]    |             ^^^^^^^^^ help: use `drop` to clarify the intent: `drop(reciever);`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(path_statements)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `hello` (lib) generated 6 warnings
[INFO] [stderr] warning: `hello` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello-98db26e46295ab46)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/main-589bf3d10f486eb7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "49f4d2cc4cffd1bdd2967f0bfa736f4bcf44528903b6eabe28f1a96c463e0d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f4d2cc4cffd1bdd2967f0bfa736f4bcf44528903b6eabe28f1a96c463e0d2b", kill_on_drop: false }`
[INFO] [stdout] 49f4d2cc4cffd1bdd2967f0bfa736f4bcf44528903b6eabe28f1a96c463e0d2b