[INFO] fetching crate colsol 1.0.0...
[INFO] testing colsol-1.0.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate colsol 1.0.0 into /workspace/builds/worker-6-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate colsol 1.0.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04e29fbd8f488713bc2abf00a045c823fcffb8a3613f039f4af4c59304656d03
[INFO] running `Command { std: "docker" "start" "-a" "04e29fbd8f488713bc2abf00a045c823fcffb8a3613f039f4af4c59304656d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04e29fbd8f488713bc2abf00a045c823fcffb8a3613f039f4af4c59304656d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e29fbd8f488713bc2abf00a045c823fcffb8a3613f039f4af4c59304656d03", kill_on_drop: false }`
[INFO] [stdout] 04e29fbd8f488713bc2abf00a045c823fcffb8a3613f039f4af4c59304656d03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 924e2d8ad1f9d3c6253a75ee28614531e626caafd20ffa2318647fe91a6f16f6
[INFO] running `Command { std: "docker" "start" "-a" "924e2d8ad1f9d3c6253a75ee28614531e626caafd20ffa2318647fe91a6f16f6", 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 0.43s
[INFO] running `Command { std: "docker" "inspect" "924e2d8ad1f9d3c6253a75ee28614531e626caafd20ffa2318647fe91a6f16f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924e2d8ad1f9d3c6253a75ee28614531e626caafd20ffa2318647fe91a6f16f6", kill_on_drop: false }`
[INFO] [stdout] 924e2d8ad1f9d3c6253a75ee28614531e626caafd20ffa2318647fe91a6f16f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e28b55c1ec80f19ef8c0d2696b68f7fd7f464ffcdbe38699d9f2cc8cac9847a
[INFO] running `Command { std: "docker" "start" "-a" "2e28b55c1ec80f19ef8c0d2696b68f7fd7f464ffcdbe38699d9f2cc8cac9847a", 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 `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "2e28b55c1ec80f19ef8c0d2696b68f7fd7f464ffcdbe38699d9f2cc8cac9847a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e28b55c1ec80f19ef8c0d2696b68f7fd7f464ffcdbe38699d9f2cc8cac9847a", kill_on_drop: false }`
[INFO] [stdout] 2e28b55c1ec80f19ef8c0d2696b68f7fd7f464ffcdbe38699d9f2cc8cac9847a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b859d9fb7391e1ad5c676b66ad8220d4f0c6e759bb637055ffbd4dfa3f673288
[INFO] running `Command { std: "docker" "start" "-a" "b859d9fb7391e1ad5c676b66ad8220d4f0c6e759bb637055ffbd4dfa3f673288", kill_on_drop: false }`
[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 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/colsol-a705f8e08c4bd69f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_colsol::test_factorization ... ok
[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 0.00s
[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" "b859d9fb7391e1ad5c676b66ad8220d4f0c6e759bb637055ffbd4dfa3f673288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b859d9fb7391e1ad5c676b66ad8220d4f0c6e759bb637055ffbd4dfa3f673288", kill_on_drop: false }`
[INFO] [stdout] b859d9fb7391e1ad5c676b66ad8220d4f0c6e759bb637055ffbd4dfa3f673288