[INFO] fetching crate twine-observers 0.6.0...
[INFO] testing twine-observers-0.6.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate twine-observers 0.6.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate twine-observers 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate twine-observers 0.6.0
[INFO] tweaked toml for crates.io crate twine-observers 0.6.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twine-observers 0.6.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate twine-observers 0.6.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 376fd1b30207a6ead35d61ccdfe8a012524db96da883c391be727e2a226173ba
[INFO] running `Command { std: "docker" "start" "-a" "376fd1b30207a6ead35d61ccdfe8a012524db96da883c391be727e2a226173ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "376fd1b30207a6ead35d61ccdfe8a012524db96da883c391be727e2a226173ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "376fd1b30207a6ead35d61ccdfe8a012524db96da883c391be727e2a226173ba", kill_on_drop: false }`
[INFO] [stdout] 376fd1b30207a6ead35d61ccdfe8a012524db96da883c391be727e2a226173ba
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 627af396dece4875ba342c2610c148995d758214bef6b162cf42d3448f479e2a
[INFO] running `Command { std: "docker" "start" "-a" "627af396dece4875ba342c2610c148995d758214bef6b162cf42d3448f479e2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling twine-core v0.6.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling twine-solvers v0.6.0
[INFO] [stderr]    Compiling twine-observers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.93s
[INFO] running `Command { std: "docker" "inspect" "627af396dece4875ba342c2610c148995d758214bef6b162cf42d3448f479e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "627af396dece4875ba342c2610c148995d758214bef6b162cf42d3448f479e2a", kill_on_drop: false }`
[INFO] [stdout] 627af396dece4875ba342c2610c148995d758214bef6b162cf42d3448f479e2a
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5978d281d106dcf74b722e4ed50bed64d74b9bd7a30e965072bab74bf721fdf1
[INFO] running `Command { std: "docker" "start" "-a" "5978d281d106dcf74b722e4ed50bed64d74b9bd7a30e965072bab74bf721fdf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling twine-observers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "5978d281d106dcf74b722e4ed50bed64d74b9bd7a30e965072bab74bf721fdf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5978d281d106dcf74b722e4ed50bed64d74b9bd7a30e965072bab74bf721fdf1", kill_on_drop: false }`
[INFO] [stdout] 5978d281d106dcf74b722e4ed50bed64d74b9bd7a30e965072bab74bf721fdf1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1594f69dc17bc371fb38b27ad7e3868a151950a037958c5c5c2af63870162eba
[INFO] running `Command { std: "docker" "start" "-a" "1594f69dc17bc371fb38b27ad7e3868a151950a037958c5c5c2af63870162eba", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twine_observers-1db96b402a4da78b)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test traits::tests::bisection_residual_evaluated ... ok
[INFO] [stdout] test traits::tests::bisection_residual_nan_on_model_failed ... ok
[INFO] [stdout] test traits::tests::golden_section_objective_evaluated ... ok
[INFO] [stdout] test traits::tests::golden_section_objective_nan_on_problem_failed ... ok
[INFO] [stdout] test traits::tests::bisection_residual_nan_on_problem_failed ... ok
[INFO] [stdout] test traits::tests::golden_section_objective_nan_on_model_failed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twine_observers
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/traits.rs - traits (line 18) ... 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] [stdout] all doctests ran in 0.41s; merged doctests compilation took 0.40s
[INFO] running `Command { std: "docker" "inspect" "1594f69dc17bc371fb38b27ad7e3868a151950a037958c5c5c2af63870162eba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1594f69dc17bc371fb38b27ad7e3868a151950a037958c5c5c2af63870162eba", kill_on_drop: false }`
[INFO] [stdout] 1594f69dc17bc371fb38b27ad7e3868a151950a037958c5c5c2af63870162eba