[INFO] cloning repository https://github.com/cutsea110/closure-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cutsea110/closure-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcutsea110%2Fclosure-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcutsea110%2Fclosure-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53ab55f087c9436e199c590977a8c1607c0d0c28
[INFO] testing cutsea110/closure-test against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcutsea110%2Fclosure-test" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cutsea110/closure-test 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/cutsea110/closure-test
[INFO] finished tweaking git repo https://github.com/cutsea110/closure-test
[INFO] tweaked toml for git repo https://github.com/cutsea110/closure-test written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/cutsea110/closure-test 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8074c894a3e22017661ca9d7390b8e0c368c037a643d6db3b50bd104f598891a
[INFO] running `Command { std: "docker" "start" "-a" "8074c894a3e22017661ca9d7390b8e0c368c037a643d6db3b50bd104f598891a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8074c894a3e22017661ca9d7390b8e0c368c037a643d6db3b50bd104f598891a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8074c894a3e22017661ca9d7390b8e0c368c037a643d6db3b50bd104f598891a", kill_on_drop: false }`
[INFO] [stdout] 8074c894a3e22017661ca9d7390b8e0c368c037a643d6db3b50bd104f598891a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] fcc71f24fedda1b087cd3db20daaec76718daaac5727e136fb4f13922025ede5
[INFO] running `Command { std: "docker" "start" "-a" "fcc71f24fedda1b087cd3db20daaec76718daaac5727e136fb4f13922025ede5", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `async_add_n`
[INFO] [stdout]   --> src/main.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | async fn async_add_n(n: u32) -> impl Fn(u32) -> u32 {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `async_add1`
[INFO] [stdout]   --> src/main.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | async fn async_add1(x: u32) -> Result<u32, Error> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "fcc71f24fedda1b087cd3db20daaec76718daaac5727e136fb4f13922025ede5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc71f24fedda1b087cd3db20daaec76718daaac5727e136fb4f13922025ede5", kill_on_drop: false }`
[INFO] [stdout] fcc71f24fedda1b087cd3db20daaec76718daaac5727e136fb4f13922025ede5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] dcab116b74f6629076a0b82129f980e39278022ada3594e4e2b4215f721894b0
[INFO] running `Command { std: "docker" "start" "-a" "dcab116b74f6629076a0b82129f980e39278022ada3594e4e2b4215f721894b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `async_add_n`
[INFO] [stdout]   --> src/main.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | async fn async_add_n(n: u32) -> impl Fn(u32) -> u32 {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `async_add1`
[INFO] [stdout]   --> src/main.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | async fn async_add1(x: u32) -> Result<u32, Error> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "dcab116b74f6629076a0b82129f980e39278022ada3594e4e2b4215f721894b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcab116b74f6629076a0b82129f980e39278022ada3594e4e2b4215f721894b0", kill_on_drop: false }`
[INFO] [stdout] dcab116b74f6629076a0b82129f980e39278022ada3594e4e2b4215f721894b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] e7a2864021b54ecc6ab724db5ce4a471fd6cd3a272e79b695a7875a4510f49c4
[INFO] running `Command { std: "docker" "start" "-a" "e7a2864021b54ecc6ab724db5ce4a471fd6cd3a272e79b695a7875a4510f49c4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function is never used: `async_add_n`
[INFO] [stderr]   --> src/main.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | async fn async_add_n(n: u32) -> impl Fn(u32) -> u32 {
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `async_add1`
[INFO] [stderr]   --> src/main.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 | async fn async_add1(x: u32) -> Result<u32, Error> {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `closure-test` (bin "closure-test" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/closure_test-3ced7d44a7614446)
[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" "e7a2864021b54ecc6ab724db5ce4a471fd6cd3a272e79b695a7875a4510f49c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a2864021b54ecc6ab724db5ce4a471fd6cd3a272e79b695a7875a4510f49c4", kill_on_drop: false }`
[INFO] [stdout] e7a2864021b54ecc6ab724db5ce4a471fd6cd3a272e79b695a7875a4510f49c4