[INFO] crate rootfind 0.7.0 is already in cache
[INFO] testing rootfind-0.7.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate rootfind 0.7.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rootfind 0.7.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rootfind 0.7.0
[INFO] finished tweaking crates.io crate rootfind 0.7.0
[INFO] tweaked toml for crates.io crate rootfind 0.7.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df855e99f8918d8a434b03363340cb15886e9ffaadfb27ab116dec296eaf61e9
[INFO] running `"docker" "start" "-a" "df855e99f8918d8a434b03363340cb15886e9ffaadfb27ab116dec296eaf61e9"`
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "df855e99f8918d8a434b03363340cb15886e9ffaadfb27ab116dec296eaf61e9"`
[INFO] running `"docker" "rm" "-f" "df855e99f8918d8a434b03363340cb15886e9ffaadfb27ab116dec296eaf61e9"`
[INFO] [stdout] df855e99f8918d8a434b03363340cb15886e9ffaadfb27ab116dec296eaf61e9
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a826eaff70b337c65f193899c9ec6a2a9740c0e38fc15d7502ec6ac713970b9e
[INFO] running `"docker" "start" "-a" "a826eaff70b337c65f193899c9ec6a2a9740c0e38fc15d7502ec6ac713970b9e"`
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:326:16
[INFO] [stderr]     |
[INFO] [stderr] 326 |         f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |         df: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:328:18
[INFO] [stderr]     |
[INFO] [stderr] 328 |         d2f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `"docker" "inspect" "a826eaff70b337c65f193899c9ec6a2a9740c0e38fc15d7502ec6ac713970b9e"`
[INFO] running `"docker" "rm" "-f" "a826eaff70b337c65f193899c9ec6a2a9740c0e38fc15d7502ec6ac713970b9e"`
[INFO] [stdout] a826eaff70b337c65f193899c9ec6a2a9740c0e38fc15d7502ec6ac713970b9e
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 336be058f1a5bd091f617a8ae65c57759c6c4b2d8ec1658d36b4add4b6271c8d
[INFO] running `"docker" "start" "-a" "336be058f1a5bd091f617a8ae65c57759c6c4b2d8ec1658d36b4add4b6271c8d"`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:326:16
[INFO] [stderr]     |
[INFO] [stderr] 326 |         f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |         df: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:328:18
[INFO] [stderr]     |
[INFO] [stderr] 328 |         d2f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rootfind-c38137a8c061ba9a
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test bracket::tests::test_bounds_middle_symmetric ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_degenerate ... ok
[INFO] [stdout] test bracket::tests::test_bounds_contains ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_offset ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_signed_zeros ... ok
[INFO] [stdout] test bracket::tests::test_bounds_size ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_valid ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_hit ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_empty ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_even_degree ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_hits ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_miss ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_convergence ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_underflow ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_overflow ... ok
[INFO] [stdout] test convergence::tests::test_dual_convergence ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_convergence ... ok
[INFO] [stdout] test solver::tests::test_bisection_centered_root ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_flipped_extents ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_nan ... ok
[INFO] [stdout] test solver::tests::test_newton_zero_derivative ... ok
[INFO] [stdout] test solver::tests::test_pathology_flatlining ... ok
[INFO] [stdout] test solver::tests::test_pathology_microstep ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_infinite ... ok
[INFO] [stdout] test solver::tests::test_table_halley ... ok
[INFO] [stdout] test solver::tests::test_table_illinois ... ok
[INFO] [stdout] test solver::tests::test_table_bisection ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_negative_window ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_window_negative ... ok
[INFO] [stdout] test solver::tests::test_table_newton ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_zero_window ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_nan_rhs ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_nan_lhs ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_nan ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_epsabs_nan ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_zero ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_epsabs_negative ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_negative ... ok
[INFO] [stdout] test solver::tests::test_halley_nonfinite_start ... ok
[INFO] [stdout] test solver::tests::test_bisection_no_straddle ... ok
[INFO] [stdout] test solver::tests::test_newton_nonfinite_start ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration-ca0b482722a2ed8c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_end_to_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rootfind
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/wrap.rs - wrap (line 36) ... ok
[INFO] [stdout] test src/wrap.rs - wrap (line 22) ... ok
[INFO] [stdout] test src/convergence.rs - convergence (line 16) ... ok
[INFO] [stdout] test src/solver.rs - solver (line 35) ... ok
[INFO] [stdout] test src/solver.rs - solver (line 12) ... ok
[INFO] [stdout] test src/bracket.rs - bracket (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "336be058f1a5bd091f617a8ae65c57759c6c4b2d8ec1658d36b4add4b6271c8d"`
[INFO] running `"docker" "rm" "-f" "336be058f1a5bd091f617a8ae65c57759c6c4b2d8ec1658d36b4add4b6271c8d"`
[INFO] [stdout] 336be058f1a5bd091f617a8ae65c57759c6c4b2d8ec1658d36b4add4b6271c8d