[INFO] cloning repository https://github.com/fedemagnani/optimization-solvers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fedemagnani/optimization-solvers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffedemagnani%2Foptimization-solvers", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0399afe8ce45d44d349ed4e44d8b43c42cb842a
[INFO] testing fedemagnani/optimization-solvers against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffedemagnani%2Foptimization-solvers" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fedemagnani/optimization-solvers
[INFO] finished tweaking git repo https://github.com/fedemagnani/optimization-solvers
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[INFO] validating manifest of git repo https://github.com/fedemagnani/optimization-solvers on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fedemagnani/optimization-solvers 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "7caba2a87e5da8fb6f6f19dc972d129c0e4200e9a824889f98fb5829522e53f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7caba2a87e5da8fb6f6f19dc972d129c0e4200e9a824889f98fb5829522e53f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7caba2a87e5da8fb6f6f19dc972d129c0e4200e9a824889f98fb5829522e53f3", kill_on_drop: false }`
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[INFO] [stderr]    Compiling optimization-solvers v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.27s
[INFO] running `Command { std: "docker" "inspect" "c7fd09807fa5cf73a5bf9fd79b85b1c024791e75aadd761fff738767ad41c7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7fd09807fa5cf73a5bf9fd79b85b1c024791e75aadd761fff738767ad41c7a3", kill_on_drop: false }`
[INFO] [stdout] c7fd09807fa5cf73a5bf9fd79b85b1c024791e75aadd761fff738767ad41c7a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 680a2a228e61ef389798c6e0e9c63740b9716dfda9d38fd349de250caf124ffd
[INFO] running `Command { std: "docker" "start" "-a" "680a2a228e61ef389798c6e0e9c63740b9716dfda9d38fd349de250caf124ffd", kill_on_drop: false }`
[INFO] [stderr]    Compiling optimization-solvers v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `Command { std: "docker" "inspect" "680a2a228e61ef389798c6e0e9c63740b9716dfda9d38fd349de250caf124ffd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "680a2a228e61ef389798c6e0e9c63740b9716dfda9d38fd349de250caf124ffd", kill_on_drop: false }`
[INFO] [stdout] 680a2a228e61ef389798c6e0e9c63740b9716dfda9d38fd349de250caf124ffd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d869b0bcd246257e68700e2fe482feae818f428a762abdfe3a5ac1beee5a6e09
[INFO] running `Command { std: "docker" "start" "-a" "d869b0bcd246257e68700e2fe482feae818f428a762abdfe3a5ac1beee5a6e09", 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/optimization_solvers-07d7a79e7c5499ff)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test quasi_newton::bfgs::test_bfgs::test_outer ... ok
[INFO] [stdout] test quasi_newton::broyden::test_broyden::test_outer ... ok
[INFO] [stdout] test quasi_newton::broyden_b::test_broyden_b::test_outer ... ok
[INFO] [stdout] test quasi_newton::dfp::test_dfp::test_outer ... ok
[INFO] [stdout] test quasi_newton::broyden::test_broyden::broyden_backtracking ... ok
[INFO] [stdout] test quasi_newton::dfp_b::test_dfpb::test_outer ... ok
[INFO] [stdout] test quasi_newton::broyden_b::test_broyden_b::broyden_b_backtracking ... ok
[INFO] [stdout] test newton::newton_test::newton_backtracking ... ok
[INFO] [stdout] test quasi_newton::dfp::test_dfp::dfp_morethuente ... ok
[INFO] [stdout] test line_search::morethuente::morethuente_test::test_phi ... ok
[INFO] [stdout] test newton::projected_newton::projected_newton_tests::constrained_grad_desc_backtracking ... ok
[INFO] [stdout] test newton::newton_test::newton_morethuente ... ok
[INFO] [stdout] test quasi_newton::bfgs::test_bfgs::bfgs_backtracking ... ok
[INFO] [stdout] test quasi_newton::broyden::test_broyden::broyden_morethuente ... ok
[INFO] [stdout] test quasi_newton::bfgs::test_bfgs::bfgs_morethuente ... ok
[INFO] [stdout] test quasi_newton::bfgs_b::bfgsb_test::constrained_grad_desc_backtracking ... ok
[INFO] [stdout] test line_search::morethuente_b::morethuente_test::test_phi ... ok
[INFO] [stdout] test steepest_descent::coordinate_descent::steepest_descent_l1_test::coordinate_descent_morethuente ... ok
[INFO] [stdout] test steepest_descent::gradient_descent::gradient_descent_test::grad_descent_more_thuente ... ok
[INFO] [stdout] test quasi_newton::dfp::test_dfp::dfp_backtracking ... ok
[INFO] [stdout] test steepest_descent::coordinate_descent::steepest_descent_l1_test::coordinate_descent_backtracking ... ok
[INFO] [stdout] test steepest_descent::pnorm_descent::gpnorm_descent_test::pnorm_morethuente ... ok
[INFO] [stdout] test newton::spn::spg_test::constrained_spg_backtracking ... ok
[INFO] [stdout] test steepest_descent::spg::spg_test::constrained_spg_backtracking ... ok
[INFO] [stdout] test steepest_descent::pnorm_descent::gpnorm_descent_test::pnorm_backtracking ... ok
[INFO] [stdout] test line_search::backtracking::backtracking_tests::test_backtracking ... ok
[INFO] [stdout] test quasi_newton::sr1_b::test_sr1_b::test_outer ... ok
[INFO] [stdout] test quasi_newton::dfp_b::test_dfpb::dfpb_backtracking ... ok
[INFO] [stdout] test steepest_descent::gradient_descent::gradient_descent_test::grad_desc_backtracking ... FAILED
[INFO] [stdout] test quasi_newton::sr1_b::test_sr1_b::sr1_b_backtracking ... ok
[INFO] [stdout] test steepest_descent::projected_gradient_descent::projected_gradient_test::constrained_grad_desc_backtracking ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- steepest_descent::gradient_descent::gradient_descent_test::grad_desc_backtracking stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'steepest_descent::gradient_descent::gradient_descent_test::grad_desc_backtracking' (52) panicked at src/steepest_descent/gradient_descent.rs:166:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: MaxIterReached
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x641a8e4fdf2a - std[f92b4c606f291077]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x641a8e4fdf2a - std[f92b4c606f291077]::backtrace_rs::backtrace::trace_unsynchronized::<std[f92b4c606f291077]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x641a8e4fdf2a - std[f92b4c606f291077]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x641a8e4fdf2a - <<std[f92b4c606f291077]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[786f478f706679df]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x641a8e5149ca - <core[786f478f706679df]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x641a8e5149ca - core[786f478f706679df]::fmt::write
[INFO] [stdout]    6:     0x641a8e502862 - std[f92b4c606f291077]::io::default_write_fmt::<alloc[64763625b5a07cdb]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x641a8e502862 - <alloc[64763625b5a07cdb]::vec::Vec<u8> as std[f92b4c606f291077]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x641a8e4dcbaf - <std[f92b4c606f291077]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x641a8e4dcbaf - std[f92b4c606f291077]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x641a8e4f6029 - std[f92b4c606f291077]::panicking::default_hook
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x641a8e1e997c - <alloc[64763625b5a07cdb]::boxed::Box<dyn for<'a, 'b> core[786f478f706679df]::ops::function::Fn<(&'a std[f92b4c606f291077]::panic::PanicHookInfo<'b>,), Output = ()> + core[786f478f706679df]::marker::Sync + core[786f478f706679df]::marker::Send> as core[786f478f706679df]::ops::function::Fn<(&std[f92b4c606f291077]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   12:     0x641a8e1e997c - test[20e1f0ae6cad7a17]::test_main_with_exit_callback::<test[20e1f0ae6cad7a17]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x641a8e4f61e2 - <alloc[64763625b5a07cdb]::boxed::Box<dyn for<'a, 'b> core[786f478f706679df]::ops::function::Fn<(&'a std[f92b4c606f291077]::panic::PanicHookInfo<'b>,), Output = ()> + core[786f478f706679df]::marker::Sync + core[786f478f706679df]::marker::Send> as core[786f478f706679df]::ops::function::Fn<(&std[f92b4c606f291077]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   14:     0x641a8e4f61e2 - std[f92b4c606f291077]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x641a8e4dcc68 - std[f92b4c606f291077]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x641a8e4d43f9 - std[f92b4c606f291077]::sys::backtrace::__rust_end_short_backtrace::<std[f92b4c606f291077]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x641a8e4dda1d - __rustc[8241495c18a89d70]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x641a8e51520c - core[786f478f706679df]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x641a8e514f82 - core[786f478f706679df]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x641a8e14b682 - <core[786f478f706679df]::result::Result<(), optimization_solvers[5ae581faec0041f]::ls_solver::SolverError>>::unwrap
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x641a8e14b682 - optimization_solvers[5ae581faec0041f]::steepest_descent::gradient_descent::gradient_descent_test::grad_desc_backtracking
[INFO] [stdout]                                at /opt/rustwide/workdir/src/steepest_descent/gradient_descent.rs:166:10
[INFO] [stdout]   22:     0x641a8e145f57 - optimization_solvers[5ae581faec0041f]::steepest_descent::gradient_descent::gradient_descent_test::grad_desc_backtracking::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/steepest_descent/gradient_descent.rs:133:36
[INFO] [stdout]   23:     0x641a8e11cac6 - <optimization_solvers[5ae581faec0041f]::steepest_descent::gradient_descent::gradient_descent_test::grad_desc_backtracking::{closure#0} as core[786f478f706679df]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x641a8e1dda5b - <fn() -> core[786f478f706679df]::result::Result<(), alloc[64763625b5a07cdb]::string::String> as core[786f478f706679df]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x641a8e1dda5b - test[20e1f0ae6cad7a17]::__rust_begin_short_backtrace::<core[786f478f706679df]::result::Result<(), alloc[64763625b5a07cdb]::string::String>, fn() -> core[786f478f706679df]::result::Result<(), alloc[64763625b5a07cdb]::string::String>>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x641a8e1ea44b - test[20e1f0ae6cad7a17]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x641a8e1ea44b - <core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<test[20e1f0ae6cad7a17]::run_test_in_process::{closure#0}> as core[786f478f706679df]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x641a8e1ea44b - std[f92b4c606f291077]::panicking::catch_unwind::do_call::<core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<test[20e1f0ae6cad7a17]::run_test_in_process::{closure#0}>, core[786f478f706679df]::result::Result<(), alloc[64763625b5a07cdb]::string::String>>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x641a8e1ea44b - std[f92b4c606f291077]::panicking::catch_unwind::<core[786f478f706679df]::result::Result<(), alloc[64763625b5a07cdb]::string::String>, core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<test[20e1f0ae6cad7a17]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x641a8e1ea44b - std[f92b4c606f291077]::panic::catch_unwind::<core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<test[20e1f0ae6cad7a17]::run_test_in_process::{closure#0}>, core[786f478f706679df]::result::Result<(), alloc[64763625b5a07cdb]::string::String>>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x641a8e1ea44b - test[20e1f0ae6cad7a17]::run_test_in_process
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x641a8e1ea44b - test[20e1f0ae6cad7a17]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x641a8e1e5b64 - test[20e1f0ae6cad7a17]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x641a8e1e5b64 - std[f92b4c606f291077]::sys::backtrace::__rust_begin_short_backtrace::<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x641a8e1ed052 - std[f92b4c606f291077]::thread::lifecycle::spawn_unchecked::<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x641a8e1ed052 - <core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<std[f92b4c606f291077]::thread::lifecycle::spawn_unchecked<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[786f478f706679df]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x641a8e1ed052 - std[f92b4c606f291077]::panicking::catch_unwind::do_call::<core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<std[f92b4c606f291077]::thread::lifecycle::spawn_unchecked<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x641a8e1ed052 - std[f92b4c606f291077]::panicking::catch_unwind::<(), core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<std[f92b4c606f291077]::thread::lifecycle::spawn_unchecked<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x641a8e1ed052 - std[f92b4c606f291077]::panic::catch_unwind::<core[786f478f706679df]::panic::unwind_safe::AssertUnwindSafe<std[f92b4c606f291077]::thread::lifecycle::spawn_unchecked<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x641a8e1ed052 - std[f92b4c606f291077]::thread::lifecycle::spawn_unchecked::<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x641a8e1ed052 - <std[f92b4c606f291077]::thread::lifecycle::spawn_unchecked<test[20e1f0ae6cad7a17]::run_test::{closure#1}, ()>::{closure#1} as core[786f478f706679df]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x641a8e4fd80f - <alloc[64763625b5a07cdb]::boxed::Box<dyn core[786f478f706679df]::ops::function::FnOnce<(), Output = ()> + core[786f478f706679df]::marker::Send> as core[786f478f706679df]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/alloc/src/boxed.rs:2240:9
[INFO] [stdout]   43:     0x641a8e4fd80f - <std[f92b4c606f291077]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x7cae798bbaa4 - <unknown>
[INFO] [stdout]   45:     0x7cae79948a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     steepest_descent::gradient_descent::gradient_descent_test::grad_desc_backtracking
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 30 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "d869b0bcd246257e68700e2fe482feae818f428a762abdfe3a5ac1beee5a6e09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d869b0bcd246257e68700e2fe482feae818f428a762abdfe3a5ac1beee5a6e09", kill_on_drop: false }`
[INFO] [stdout] d869b0bcd246257e68700e2fe482feae818f428a762abdfe3a5ac1beee5a6e09
