[INFO] fetching crate lp-solvers 0.0.4...
[INFO] testing lp-solvers-0.0.4 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate lp-solvers 0.0.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate lp-solvers 0.0.4 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lp-solvers 0.0.4
[INFO] finished tweaking crates.io crate lp-solvers 0.0.4
[INFO] tweaked toml for crates.io crate lp-solvers 0.0.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c78b999e330a95f138607013bb9c7e7eb41b0a9e426f8013bb44168e7b23aeb
[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" "4c78b999e330a95f138607013bb9c7e7eb41b0a9e426f8013bb44168e7b23aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c78b999e330a95f138607013bb9c7e7eb41b0a9e426f8013bb44168e7b23aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c78b999e330a95f138607013bb9c7e7eb41b0a9e426f8013bb44168e7b23aeb", kill_on_drop: false }`
[INFO] [stdout] 4c78b999e330a95f138607013bb9c7e7eb41b0a9e426f8013bb44168e7b23aeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d93e9fc4ea7202798fd0d6007ad0aea3b5b7db3a9f6be5bd3998ef08478b062
[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" "3d93e9fc4ea7202798fd0d6007ad0aea3b5b7db3a9f6be5bd3998ef08478b062", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling lp-solvers v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "3d93e9fc4ea7202798fd0d6007ad0aea3b5b7db3a9f6be5bd3998ef08478b062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d93e9fc4ea7202798fd0d6007ad0aea3b5b7db3a9f6be5bd3998ef08478b062", kill_on_drop: false }`
[INFO] [stdout] 3d93e9fc4ea7202798fd0d6007ad0aea3b5b7db3a9f6be5bd3998ef08478b062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e28ea9465f43ce0977178fbfa7ec9ef5c8c552db354555197515a0bcf57a258
[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" "7e28ea9465f43ce0977178fbfa7ec9ef5c8c552db354555197515a0bcf57a258", kill_on_drop: false }`
[INFO] [stderr]    Compiling lp-solvers v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "7e28ea9465f43ce0977178fbfa7ec9ef5c8c552db354555197515a0bcf57a258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e28ea9465f43ce0977178fbfa7ec9ef5c8c552db354555197515a0bcf57a258", kill_on_drop: false }`
[INFO] [stdout] 7e28ea9465f43ce0977178fbfa7ec9ef5c8c552db354555197515a0bcf57a258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0708b968f0a657f8fedfac1f4da9be7e207621fe2a5e6eb045aaf9a0ac3385f9
[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" "0708b968f0a657f8fedfac1f4da9be7e207621fe2a5e6eb045aaf9a0ac3385f9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lp_solvers-ea72ae5598bd1c88)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/end_to_end.rs (/opt/rustwide/target/debug/deps/end_to_end-56b7a5e880f75733)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test solve_integer_problem_with_cbc ... FAILED
[INFO] [stdout] test solve_integer_problem_with_auto_solver ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- solve_integer_problem_with_cbc stdout ----
[INFO] [stdout] thread 'solve_integer_problem_with_cbc' panicked at 'Failed to run solver: "Error while running cbc: No such file or directory (os error 2)"', tests/end_to_end.rs:58:36
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5569fdaa0ca0 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5569fdaa0ca0 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5569fdaa0ca0 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5569fdaa0ca0 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5569fdac564c - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5569fda9da45 - <alloc[cda43b294bbfc5d0]::vec::Vec<u8> as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5569fdaa2eab - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5569fdaa2eab - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5569fdaa2eab - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5569fdaa29bc - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5569fdaa3551 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5569fdaa3057 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5569fdaa119c - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5569fdaa2fb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5569fd9d6921 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5569fd9d6a13 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x5569fd9ea3a6 - <core[ee1ca6415511a9c4]::result::Result<lp_solvers[4afe63edddcaa3f5]::solvers::Solution, alloc[cda43b294bbfc5d0]::string::String>>::expect
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:997:23
[INFO] [stdout]   17:     0x5569fd9f1ae9 - end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_solver::<lp_solvers[4afe63edddcaa3f5]::solvers::cbc::CbcSolver>
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/end_to_end.rs:58:20
[INFO] [stdout]   18:     0x5569fd9f27b5 - end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_cbc
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/end_to_end.rs:12:5
[INFO] [stdout]   19:     0x5569fd9f278a - end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_cbc::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/end_to_end.rs:10:1
[INFO] [stdout]   20:     0x5569fd9f099e - <end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_cbc::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x5569fda25c13 - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5569fda25c13 - test[eeb9024d9ac7bc83]::__rust_begin_short_backtrace::<fn()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:577:5
[INFO] [stdout]   23:     0x5569fda246dc - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   24:     0x5569fda246dc - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   25:     0x5569fda246dc - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   26:     0x5569fda246dc - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   27:     0x5569fda246dc - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   28:     0x5569fda246dc - test[eeb9024d9ac7bc83]::run_test_in_process
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:600:18
[INFO] [stdout]   29:     0x5569fda246dc - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:492:39
[INFO] [stdout]   30:     0x5569fda043a2 - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:519:37
[INFO] [stdout]   31:     0x5569fda043a2 - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   32:     0x5569fda04c88 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   33:     0x5569fda04c88 - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   34:     0x5569fda04c88 - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   35:     0x5569fda04c88 - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   36:     0x5569fda04c88 - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   37:     0x5569fda04c88 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   38:     0x5569fda04c88 - <<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   39:     0x5569fdaa82d7 - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x5569fdaa82d7 - <alloc[cda43b294bbfc5d0]::boxed::Box<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5569fdaa82d7 - <std[77c0456e0eb29f0c]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   42:     0x7f5e8073e609 - start_thread
[INFO] [stdout]   43:     0x7f5e80510293 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- solve_integer_problem_with_auto_solver stdout ----
[INFO] [stdout] thread 'solve_integer_problem_with_auto_solver' panicked at 'Failed to run solver: "No solver available"', tests/end_to_end.rs:58:36
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5569fdaa0ca0 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5569fdaa0ca0 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5569fdaa0ca0 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5569fdaa0ca0 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5569fdac564c - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5569fda9da45 - <alloc[cda43b294bbfc5d0]::vec::Vec<u8> as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5569fdaa2eab - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5569fdaa2eab - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5569fdaa2eab - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5569fdaa29bc - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5569fdaa3551 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5569fdaa3057 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5569fdaa119c - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5569fdaa2fb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5569fd9d6921 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5569fd9d6a13 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x5569fd9ea3a6 - <core[ee1ca6415511a9c4]::result::Result<lp_solvers[4afe63edddcaa3f5]::solvers::Solution, alloc[cda43b294bbfc5d0]::string::String>>::expect
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:997:23
[INFO] [stdout]   17:     0x5569fd9f1339 - end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_solver::<lp_solvers[4afe63edddcaa3f5]::solvers::auto::AutoSolver<lp_solvers[4afe63edddcaa3f5]::solvers::gurobi::GurobiSolver, lp_solvers[4afe63edddcaa3f5]::solvers::auto::AutoSolver<lp_solvers[4afe63edddcaa3f5]::solvers::auto::NoSolver, lp_solvers[4afe63edddcaa3f5]::solvers::auto::AutoSolver<lp_solvers[4afe63edddcaa3f5]::solvers::cbc::CbcSolver, lp_solvers[4afe63edddcaa3f5]::solvers::auto::AutoSolver<lp_solvers[4afe63edddcaa3f5]::solvers::glpk::GlpkSolver, lp_solvers[4afe63edddcaa3f5]::solvers::auto::NoSolver>>>>>
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/end_to_end.rs:58:20
[INFO] [stdout]   18:     0x5569fd9f2837 - end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_auto_solver
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/end_to_end.rs:19:5
[INFO] [stdout]   19:     0x5569fd9f280a - end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_auto_solver::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/end_to_end.rs:17:1
[INFO] [stdout]   20:     0x5569fd9f09de - <end_to_end[e3aa83b9036b9076]::solve_integer_problem_with_auto_solver::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x5569fda25c13 - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5569fda25c13 - test[eeb9024d9ac7bc83]::__rust_begin_short_backtrace::<fn()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:577:5
[INFO] [stdout]   23:     0x5569fda246dc - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   24:     0x5569fda246dc - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   25:     0x5569fda246dc - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   26:     0x5569fda246dc - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   27:     0x5569fda246dc - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   28:     0x5569fda246dc - test[eeb9024d9ac7bc83]::run_test_in_process
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:600:18
[INFO] [stdout]   29:     0x5569fda246dc - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:492:39
[INFO] [stdout]   30:     0x5569fda043a2 - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:519:37
[INFO] [stdout]   31:     0x5569fda043a2 - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   32:     0x5569fda04c88 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   33:     0x5569fda04c88 - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   34:     0x5569fda04c88 - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   35:     0x5569fda04c88 - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   36:     0x5569fda04c88 - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   37:     0x5569fda04c88 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   38:     0x5569fda04c88 - <<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   39:     0x5569fdaa82d7 - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x5569fdaa82d7 - <alloc[cda43b294bbfc5d0]::boxed::Box<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5569fdaa82d7 - <std[77c0456e0eb29f0c]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   42:     0x7f5e8073e609 - start_thread
[INFO] [stdout]   43:     0x7f5e80510293 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     solve_integer_problem_with_auto_solver
[INFO] [stdout]     solve_integer_problem_with_cbc
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--test end_to_end'
[INFO] running `Command { std: "docker" "inspect" "0708b968f0a657f8fedfac1f4da9be7e207621fe2a5e6eb045aaf9a0ac3385f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0708b968f0a657f8fedfac1f4da9be7e207621fe2a5e6eb045aaf9a0ac3385f9", kill_on_drop: false }`
[INFO] [stdout] 0708b968f0a657f8fedfac1f4da9be7e207621fe2a5e6eb045aaf9a0ac3385f9