[INFO] fetching crate colsol 1.0.0...
[INFO] testing colsol-1.0.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate colsol 1.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate colsol 1.0.0
[INFO] finished tweaking crates.io crate colsol 1.0.0
[INFO] tweaked toml for crates.io crate colsol 1.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate colsol 1.0.0 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] crate crates.io crate colsol 1.0.0 already has a lockfile, it will not be regenerated
[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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f22d0d15d6f70defb4e95b524e34c1d6f5457895f62011953ae2a6393a20b45e
[INFO] running `Command { std: "docker" "start" "-a" "f22d0d15d6f70defb4e95b524e34c1d6f5457895f62011953ae2a6393a20b45e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f22d0d15d6f70defb4e95b524e34c1d6f5457895f62011953ae2a6393a20b45e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22d0d15d6f70defb4e95b524e34c1d6f5457895f62011953ae2a6393a20b45e", kill_on_drop: false }`
[INFO] [stdout] f22d0d15d6f70defb4e95b524e34c1d6f5457895f62011953ae2a6393a20b45e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 46a7af3ea8efeb636c4a3ac23488dfc674b7d775627c3bca9890387c2c0a732d
[INFO] running `Command { std: "docker" "start" "-a" "46a7af3ea8efeb636c4a3ac23488dfc674b7d775627c3bca9890387c2c0a732d", kill_on_drop: false }`
[INFO] [stderr]    Compiling colsol v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `factorization` and `find_unknown`
[INFO] [stdout]  --> src/tests/test_colsol.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{factorization, find_unknown};
[INFO] [stdout]   |             ^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "46a7af3ea8efeb636c4a3ac23488dfc674b7d775627c3bca9890387c2c0a732d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a7af3ea8efeb636c4a3ac23488dfc674b7d775627c3bca9890387c2c0a732d", kill_on_drop: false }`
[INFO] [stdout] 46a7af3ea8efeb636c4a3ac23488dfc674b7d775627c3bca9890387c2c0a732d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a04418e7776177cd758ba13a42af57d1cc2d3ff3505fdae0fa07a778aa6a622b
[INFO] running `Command { std: "docker" "start" "-a" "a04418e7776177cd758ba13a42af57d1cc2d3ff3505fdae0fa07a778aa6a622b", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `factorization` and `find_unknown`
[INFO] [stdout]  --> src/tests/test_colsol.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{factorization, find_unknown};
[INFO] [stdout]   |             ^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling colsol v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "a04418e7776177cd758ba13a42af57d1cc2d3ff3505fdae0fa07a778aa6a622b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a04418e7776177cd758ba13a42af57d1cc2d3ff3505fdae0fa07a778aa6a622b", kill_on_drop: false }`
[INFO] [stdout] a04418e7776177cd758ba13a42af57d1cc2d3ff3505fdae0fa07a778aa6a622b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c33319aaf5bebf4e59ecdae5f0ba01c9669b827a29667281ed7932bc6f64f428
[INFO] running `Command { std: "docker" "start" "-a" "c33319aaf5bebf4e59ecdae5f0ba01c9669b827a29667281ed7932bc6f64f428", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_colsol::test_factorization ... ok
[INFO] [stderr] warning: unused imports: `factorization` and `find_unknown`
[INFO] [stderr]  --> src/tests/test_colsol.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{factorization, find_unknown};
[INFO] [stderr]   |             ^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `colsol` (lib) generated 1 warning (run `cargo fix --lib -p colsol` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/colsol-a705f8e08c4bd69f)
[INFO] [stdout] test tests::test_colsol::test_find_unknown ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/colsol-35e35ca31e3619a5)
[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 colsol
[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" "c33319aaf5bebf4e59ecdae5f0ba01c9669b827a29667281ed7932bc6f64f428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c33319aaf5bebf4e59ecdae5f0ba01c9669b827a29667281ed7932bc6f64f428", kill_on_drop: false }`
[INFO] [stdout] c33319aaf5bebf4e59ecdae5f0ba01c9669b827a29667281ed7932bc6f64f428