[INFO] fetching crate rootfind 0.7.0...
[INFO] testing rootfind-0.7.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rootfind 0.7.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rootfind 0.7.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6daa25f3cd2316cc940543bbff79ac4567f81b5ead80f50b810087848cbe06c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e6daa25f3cd2316cc940543bbff79ac4567f81b5ead80f50b810087848cbe06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6daa25f3cd2316cc940543bbff79ac4567f81b5ead80f50b810087848cbe06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6daa25f3cd2316cc940543bbff79ac4567f81b5ead80f50b810087848cbe06c", kill_on_drop: false }`
[INFO] [stdout] e6daa25f3cd2316cc940543bbff79ac4567f81b5ead80f50b810087848cbe06c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b815bb30b98ceffb6bee93c4ec531d98f560674ac3816cc59fe917b64563f97
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3b815bb30b98ceffb6bee93c4ec531d98f560674ac3816cc59fe917b64563f97", kill_on_drop: false }`
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "3b815bb30b98ceffb6bee93c4ec531d98f560674ac3816cc59fe917b64563f97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b815bb30b98ceffb6bee93c4ec531d98f560674ac3816cc59fe917b64563f97", kill_on_drop: false }`
[INFO] [stdout] 3b815bb30b98ceffb6bee93c4ec531d98f560674ac3816cc59fe917b64563f97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01211c81f8b2ae37d194dc63dc08bd665c278841af271965fc4598391044b7d7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "01211c81f8b2ae37d194dc63dc08bd665c278841af271965fc4598391044b7d7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/solver.rs:326:16
[INFO] [stdout]     |
[INFO] [stdout] 326 |         f: Box<Fn(f64) -> f64>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/solver.rs:327:17
[INFO] [stdout]     |
[INFO] [stdout] 327 |         df: Box<Fn(f64) -> f64>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/solver.rs:328:18
[INFO] [stdout]     |
[INFO] [stdout] 328 |         d2f: Box<Fn(f64) -> f64>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "01211c81f8b2ae37d194dc63dc08bd665c278841af271965fc4598391044b7d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01211c81f8b2ae37d194dc63dc08bd665c278841af271965fc4598391044b7d7", kill_on_drop: false }`
[INFO] [stdout] 01211c81f8b2ae37d194dc63dc08bd665c278841af271965fc4598391044b7d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ee77efccab5f6a6a91cc26428d3d719fff426bcf3803ce7d24d0b6be55cedb60
[INFO] running `Command { std: "docker" "start" "-a" "ee77efccab5f6a6a91cc26428d3d719fff426bcf3803ce7d24d0b6be55cedb60", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[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 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rootfind-1f8ba73c94ab0c7c
[INFO] [stdout] test bracket::tests::test_bounds_contains ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_degenerate ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_symmetric ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_valid ... 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_bracket_generator_empty ... ok
[INFO] [stdout] test bracket::tests::test_bounds_size ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_hits ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_even_degree ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_hit ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_overflow ... 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 ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_convergence ... ok
[INFO] [stdout] test convergence::tests::test_dual_convergence ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_flipped_extents ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_window_negative ... ok
[INFO] [stdout] test solver::tests::test_bisection_centered_root ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_infinite ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_zero_window ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_nan_lhs ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_negative_window ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_nan_rhs ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_epsabs_negative ... ok
[INFO] [stdout] test solver::tests::test_newton_zero_derivative ... ok
[INFO] [stdout] test solver::tests::test_pathology_flatlining ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_nan ... ok
[INFO] [stdout] test solver::tests::test_pathology_microstep ... ok
[INFO] [stdout] test solver::tests::test_table_halley ... ok
[INFO] [stdout] test solver::tests::test_table_newton ... ok
[INFO] [stdout] test solver::tests::test_table_bisection ... ok
[INFO] [stdout] test solver::tests::test_table_illinois ... ok
[INFO] [stdout] test solver::tests::test_bisection_no_straddle ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_negative ... 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 solver::tests::test_halley_nonfinite_start ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration-2e162cda722ed1c7
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_nan ... 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; finished in 0.09s
[INFO] [stdout] 
[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; finished in 0.00s
[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/convergence.rs - convergence (line 16) ... ok
[INFO] [stdout] test src/wrap.rs - wrap (line 22) ... ok
[INFO] [stdout] test src/solver.rs - solver (line 12) ... ok
[INFO] [stdout] test src/solver.rs - solver (line 35) ... 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; finished in 1.78s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee77efccab5f6a6a91cc26428d3d719fff426bcf3803ce7d24d0b6be55cedb60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee77efccab5f6a6a91cc26428d3d719fff426bcf3803ce7d24d0b6be55cedb60", kill_on_drop: false }`
[INFO] [stdout] ee77efccab5f6a6a91cc26428d3d719fff426bcf3803ce7d24d0b6be55cedb60