[INFO] crate rootfind 0.7.0 is already in cache
[INFO] extracting crate rootfind 0.7.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rootfind/0.7.0
[INFO] extracting crate rootfind 0.7.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rootfind/0.7.0
[INFO] validating manifest of rootfind-0.7.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rootfind-0.7.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rootfind-0.7.0
[INFO] finished frobbing rootfind-0.7.0
[INFO] frobbed toml for rootfind-0.7.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rootfind/0.7.0/Cargo.toml
[INFO] started frobbing rootfind-0.7.0
[INFO] finished frobbing rootfind-0.7.0
[INFO] frobbed toml for rootfind-0.7.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rootfind/0.7.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rootfind-0.7.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rootfind/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5c3cbc15b79171aa687d36921aa41261eb4ec18b4eaf73a59713d20540ebbaac
[INFO] running `"docker" "start" "-a" "5c3cbc15b79171aa687d36921aa41261eb4ec18b4eaf73a59713d20540ebbaac"`
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "5c3cbc15b79171aa687d36921aa41261eb4ec18b4eaf73a59713d20540ebbaac"`
[INFO] running `"docker" "rm" "-f" "5c3cbc15b79171aa687d36921aa41261eb4ec18b4eaf73a59713d20540ebbaac"`
[INFO] [stdout] 5c3cbc15b79171aa687d36921aa41261eb4ec18b4eaf73a59713d20540ebbaac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rootfind/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 19e33b3c67f2a7827b45ab8060f1817b2f20acf14b533031ec074f49cbdd6432
[INFO] running `"docker" "start" "-a" "19e33b3c67f2a7827b45ab8060f1817b2f20acf14b533031ec074f49cbdd6432"`
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `"docker" "inspect" "19e33b3c67f2a7827b45ab8060f1817b2f20acf14b533031ec074f49cbdd6432"`
[INFO] running `"docker" "rm" "-f" "19e33b3c67f2a7827b45ab8060f1817b2f20acf14b533031ec074f49cbdd6432"`
[INFO] [stdout] 19e33b3c67f2a7827b45ab8060f1817b2f20acf14b533031ec074f49cbdd6432
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rootfind/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] cc39f9a80498578383c432b26bc77efda3047d32762ff2fe8445408a983dacc1
[INFO] running `"docker" "start" "-a" "cc39f9a80498578383c432b26bc77efda3047d32762ff2fe8445408a983dacc1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rootfind-9ecd28c412d31213
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test bracket::tests::test_bounds_middle_offset ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_degenerate ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_signed_zeros ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_symmetric ... ok
[INFO] [stdout] test bracket::tests::test_bounds_contains ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_valid ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_hits ... 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_first_bracket_miss ... ok
[INFO] [stdout] test bracket::tests::test_bounds_size ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_hit ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_infinite ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_overflow ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_underflow ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_nan ... 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 convergence::tests::test_delta_x_convergence ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_nan ... ok
[INFO] [stdout] test convergence::tests::test_dual_convergence ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_zero ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_zero_window ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_negative ... 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 solver::tests::test_bisection_no_straddle ... ok
[INFO] [stdout] test solver::tests::test_newton_zero_derivative ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_convergence ... ok
[INFO] [stdout] test solver::tests::test_halley_nonfinite_start ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_epsabs_negative ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_epsabs_nan ... ok
[INFO] [stdout] test solver::tests::test_newton_nonfinite_start ... ok
[INFO] [stdout] test solver::tests::test_bisection_centered_root ... ok
[INFO] [stdout] test solver::tests::test_pathology_microstep ... ok
[INFO] [stdout] test solver::tests::test_pathology_flatlining ... ok
[INFO] [stdout] test solver::tests::test_table_halley ... ok
[INFO] [stdout] test solver::tests::test_table_bisection ... ok
[INFO] [stdout] test solver::tests::test_table_newton ... ok
[INFO] [stdout] test solver::tests::test_table_illinois ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/crater/target/debug/deps/integration-5a7226d4c771651e
[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 22) ... ok
[INFO] [stdout] test src/wrap.rs - wrap (line 36) ... ok
[INFO] [stdout] test src/solver.rs - solver (line 12) ... ok
[INFO] [stdout] test src/convergence.rs - convergence (line 16) ... ok
[INFO] [stdout] test src/bracket.rs - bracket (line 25) ... ok
[INFO] [stdout] test src/solver.rs - solver (line 35) ... 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" "cc39f9a80498578383c432b26bc77efda3047d32762ff2fe8445408a983dacc1"`
[INFO] running `"docker" "rm" "-f" "cc39f9a80498578383c432b26bc77efda3047d32762ff2fe8445408a983dacc1"`
[INFO] [stdout] cc39f9a80498578383c432b26bc77efda3047d32762ff2fe8445408a983dacc1