[INFO] fetching crate test_pairs 0.1.0...
[INFO] testing test_pairs-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate test_pairs 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate test_pairs 0.1.0
[INFO] finished tweaking crates.io crate test_pairs 0.1.0
[INFO] tweaked toml for crates.io crate test_pairs 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate test_pairs 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3748e1b5db333bdbca91a7dae072a5528ea1448a49ec9dea133c05a710788353
[INFO] running `Command { std: "docker" "start" "-a" "3748e1b5db333bdbca91a7dae072a5528ea1448a49ec9dea133c05a710788353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3748e1b5db333bdbca91a7dae072a5528ea1448a49ec9dea133c05a710788353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3748e1b5db333bdbca91a7dae072a5528ea1448a49ec9dea133c05a710788353", kill_on_drop: false }`
[INFO] [stdout] 3748e1b5db333bdbca91a7dae072a5528ea1448a49ec9dea133c05a710788353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f07acf5ddf24ca0b674f3ebecf95a5595769894c03c3a81b5f21fcf074b8106
[INFO] running `Command { std: "docker" "start" "-a" "1f07acf5ddf24ca0b674f3ebecf95a5595769894c03c3a81b5f21fcf074b8106", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "1f07acf5ddf24ca0b674f3ebecf95a5595769894c03c3a81b5f21fcf074b8106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f07acf5ddf24ca0b674f3ebecf95a5595769894c03c3a81b5f21fcf074b8106", kill_on_drop: false }`
[INFO] [stdout] 1f07acf5ddf24ca0b674f3ebecf95a5595769894c03c3a81b5f21fcf074b8106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3d63531667bc97a183fe0255346f4b1070e6d38deb4d49b3c3213a88d70b558
[INFO] running `Command { std: "docker" "start" "-a" "c3d63531667bc97a183fe0255346f4b1070e6d38deb4d49b3c3213a88d70b558", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/lib.rs:23:46
[INFO] [stdout]    |
[INFO] [stdout] 23 |         test_pairs(&pairs, |a, b| a + 1, |b, a| b - 1);
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/lib.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |         test_pairs(&pairs, |a, b| a + 1, |b, a| b - 1);
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "c3d63531667bc97a183fe0255346f4b1070e6d38deb4d49b3c3213a88d70b558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d63531667bc97a183fe0255346f4b1070e6d38deb4d49b3c3213a88d70b558", kill_on_drop: false }`
[INFO] [stdout] c3d63531667bc97a183fe0255346f4b1070e6d38deb4d49b3c3213a88d70b558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d26af63fd243fda294db27e86b11601212b62b7bd48ae2462ee6bffa703e6842
[INFO] running `Command { std: "docker" "start" "-a" "d26af63fd243fda294db27e86b11601212b62b7bd48ae2462ee6bffa703e6842", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/lib.rs:23:46
[INFO] [stderr]    |
[INFO] [stderr] 23 |         test_pairs(&pairs, |a, b| a + 1, |b, a| b - 1);
[INFO] [stderr]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/lib.rs:23:32
[INFO] [stderr]    |
[INFO] [stderr] 23 |         test_pairs(&pairs, |a, b| a + 1, |b, a| b - 1);
[INFO] [stderr]    |                                ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: `test_pairs` (lib test) generated 2 warnings (run `cargo fix --lib -p test_pairs --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/test_pairs-c17d734e6dc218cc)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::adding ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests test_pairs
[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" "d26af63fd243fda294db27e86b11601212b62b7bd48ae2462ee6bffa703e6842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d26af63fd243fda294db27e86b11601212b62b7bd48ae2462ee6bffa703e6842", kill_on_drop: false }`
[INFO] [stdout] d26af63fd243fda294db27e86b11601212b62b7bd48ae2462ee6bffa703e6842