[INFO] cloning repository https://github.com/cbhuber17/rust-quadratic-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cbhuber17/rust-quadratic-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbhuber17%2Frust-quadratic-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbhuber17%2Frust-quadratic-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc8ee68299ba249552966e65174270d5062beecd
[INFO] testing cbhuber17/rust-quadratic-solver against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbhuber17%2Frust-quadratic-solver" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cbhuber17/rust-quadratic-solver on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cbhuber17/rust-quadratic-solver
[INFO] finished tweaking git repo https://github.com/cbhuber17/rust-quadratic-solver
[INFO] tweaked toml for git repo https://github.com/cbhuber17/rust-quadratic-solver written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cbhuber17/rust-quadratic-solver 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", 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] 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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9930aa8e5226b5b1aa31c983c6d950b698d06d85b90bdd01a843b9296ea8c0a2
[INFO] running `Command { std: "docker" "start" "-a" "9930aa8e5226b5b1aa31c983c6d950b698d06d85b90bdd01a843b9296ea8c0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9930aa8e5226b5b1aa31c983c6d950b698d06d85b90bdd01a843b9296ea8c0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9930aa8e5226b5b1aa31c983c6d950b698d06d85b90bdd01a843b9296ea8c0a2", kill_on_drop: false }`
[INFO] [stdout] 9930aa8e5226b5b1aa31c983c6d950b698d06d85b90bdd01a843b9296ea8c0a2
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0556194976cf2b200b81f6af962ec2ed1b7d71f187468f55783a9a2469dbc3a3
[INFO] running `Command { std: "docker" "start" "-a" "0556194976cf2b200b81f6af962ec2ed1b7d71f187468f55783a9a2469dbc3a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
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[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-ident v1.0.12
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[INFO] [stderr]    Compiling textwrap v0.11.0
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[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
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[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling num-integer v0.1.46
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[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling rust-quadratic-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.35s
[INFO] running `Command { std: "docker" "inspect" "0556194976cf2b200b81f6af962ec2ed1b7d71f187468f55783a9a2469dbc3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0556194976cf2b200b81f6af962ec2ed1b7d71f187468f55783a9a2469dbc3a3", kill_on_drop: false }`
[INFO] [stdout] 0556194976cf2b200b81f6af962ec2ed1b7d71f187468f55783a9a2469dbc3a3
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5c33e2b83edf982590d12b3938f6b8a076d3f3956caf4fc9cc644cb6752c734
[INFO] running `Command { std: "docker" "start" "-a" "e5c33e2b83edf982590d12b3938f6b8a076d3f3956caf4fc9cc644cb6752c734", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling plotters-backend v0.3.5
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling syn v2.0.51
[INFO] [stderr]    Compiling plotters-svg v0.3.5
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling cast v0.3.0
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[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling rayon v1.9.0
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling plotters v0.3.5
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling rust-quadratic-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 24.77s
[INFO] running `Command { std: "docker" "inspect" "e5c33e2b83edf982590d12b3938f6b8a076d3f3956caf4fc9cc644cb6752c734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5c33e2b83edf982590d12b3938f6b8a076d3f3956caf4fc9cc644cb6752c734", kill_on_drop: false }`
[INFO] [stdout] e5c33e2b83edf982590d12b3938f6b8a076d3f3956caf4fc9cc644cb6752c734
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 46a1b0cc464d50db117fd3e7e3a0bd20ca5e9d06dfe10a45bc75b0cefacb8187
[INFO] running `Command { std: "docker" "start" "-a" "46a1b0cc464d50db117fd3e7e3a0bd20ca5e9d06dfe10a45bc75b0cefacb8187", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_quadratic_solver-0f12568f168f15a1)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_complex_quadratic ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_quadratic_solver-97b82118c177019f)
[INFO] [stdout] test test::test_real_quadratic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_quadratic_solver
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[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 4 tests
[INFO] [stdout] test src/lib.rs - quadratic::solve_quadratic (line 28) ... ok
[INFO] [stdout] test src/lib.rs - utils::print_results (line 121) ... ok
[INFO] [stdout] test src/lib.rs - utils::create_file (line 83) ... FAILED
[INFO] [stdout] test src/lib.rs - utils::write_results_to_file (line 163) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - utils::create_file (line 83) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:104:25:
[INFO] [stdout] ERROR: Could not create file: example.csv due to: Read-only file system (os error 30)
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56403d0a4ef5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x56403d0a4ef5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x56403d0a4ef5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x56403d0a4ef5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x56403d0c273b - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x56403d0c273b - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x56403d0a309f - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x56403d0a4cce - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x56403d0a4cce - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x56403d0a6039 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x56403d0a5d7d - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x56403d0a64d3 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x56403d0a63b4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x56403d0a53b9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x56403d0a60e7 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x56403d077e73 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x56403d07aa13 - rust_quadratic_solver::utils::create_file::hbb192e125509a352
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:104:25
[INFO] [stdout]   17:     0x56403d07910d - rust_out::main::_doctest_main_src_lib_rs_83_0::haf4a0c991eca0613
[INFO] [stdout]   18:     0x56403d0790d6 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   19:     0x56403d078ba3 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   20:     0x56403d0785b6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   21:     0x56403d078919 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   22:     0x56403d0a0c7d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x56403d0a0c7d - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x56403d0a0c7d - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x56403d0a0c7d - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x56403d0a0c7d - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x56403d0a0c7d - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x56403d0a0c7d - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x56403d0a0c7d - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x56403d0a0c7d - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x56403d0788f7 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   32:     0x56403d079135 - main
[INFO] [stdout]   33:     0x7f7c95556d90 - <unknown>
[INFO] [stdout]   34:     0x7f7c95556e40 - __libc_start_main
[INFO] [stdout]   35:     0x56403d0784e5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - utils::write_results_to_file (line 163) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:11:43:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5562afc01fe5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x5562afc01fe5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5562afc01fe5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x5562afc01fe5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x5562afc230fb - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x5562afc230fb - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x5562afc001ff - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x5562afc01dbe - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5562afc01dbe - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x5562afc03129 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x5562afc02e6d - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x5562afc035c3 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x5562afc034a4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x5562afc024a9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x5562afc031d7 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x5562afbcfef3 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x5562afbd0346 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x5562afbd130a - rust_out::main::_doctest_main_src_lib_rs_163_0::h6d637c2a3f286a50
[INFO] [stdout]   18:     0x5562afbd1286 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   19:     0x5562afbd0d33 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   20:     0x5562afbd0676 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   21:     0x5562afbd0a99 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   22:     0x5562afbfd5bd - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x5562afbfd5bd - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x5562afbfd5bd - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x5562afbfd5bd - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x5562afbfd5bd - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x5562afbfd5bd - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x5562afbfd5bd - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x5562afbfd5bd - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x5562afbfd5bd - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x5562afbd0a77 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   32:     0x5562afbd1405 - main
[INFO] [stdout]   33:     0x7f514f844d90 - <unknown>
[INFO] [stdout]   34:     0x7f514f844e40 - __libc_start_main
[INFO] [stdout]   35:     0x5562afbd05a5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - utils::create_file (line 83)
[INFO] [stdout]     src/lib.rs - utils::write_results_to_file (line 163)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.86s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "46a1b0cc464d50db117fd3e7e3a0bd20ca5e9d06dfe10a45bc75b0cefacb8187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a1b0cc464d50db117fd3e7e3a0bd20ca5e9d06dfe10a45bc75b0cefacb8187", kill_on_drop: false }`
[INFO] [stdout] 46a1b0cc464d50db117fd3e7e3a0bd20ca5e9d06dfe10a45bc75b0cefacb8187
[INFO] testing cbhuber17/rust-quadratic-solver against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbhuber17%2Frust-quadratic-solver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cbhuber17/rust-quadratic-solver on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cbhuber17/rust-quadratic-solver
[INFO] finished tweaking git repo https://github.com/cbhuber17/rust-quadratic-solver
[INFO] tweaked toml for git repo https://github.com/cbhuber17/rust-quadratic-solver written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cbhuber17/rust-quadratic-solver 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59d3e0ebad104cab26adacbeb189687b9d6e466efc27d6c8337e50310341cb36
[INFO] running `Command { std: "docker" "start" "-a" "59d3e0ebad104cab26adacbeb189687b9d6e466efc27d6c8337e50310341cb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59d3e0ebad104cab26adacbeb189687b9d6e466efc27d6c8337e50310341cb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d3e0ebad104cab26adacbeb189687b9d6e466efc27d6c8337e50310341cb36", kill_on_drop: false }`
[INFO] [stdout] 59d3e0ebad104cab26adacbeb189687b9d6e466efc27d6c8337e50310341cb36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d2f74489bb27eea3d630121d74a22c7f05ce055e87497fa8459af3fc3f1763c
[INFO] running `Command { std: "docker" "start" "-a" "8d2f74489bb27eea3d630121d74a22c7f05ce055e87497fa8459af3fc3f1763c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling rust-quadratic-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.54s
[INFO] running `Command { std: "docker" "inspect" "8d2f74489bb27eea3d630121d74a22c7f05ce055e87497fa8459af3fc3f1763c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d2f74489bb27eea3d630121d74a22c7f05ce055e87497fa8459af3fc3f1763c", kill_on_drop: false }`
[INFO] [stdout] 8d2f74489bb27eea3d630121d74a22c7f05ce055e87497fa8459af3fc3f1763c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2419d4aff025b20a1db1ad2d39ce054e1890a08bc4e6edf61ae632690bfeb246
[INFO] running `Command { std: "docker" "start" "-a" "2419d4aff025b20a1db1ad2d39ce054e1890a08bc4e6edf61ae632690bfeb246", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling plotters-backend v0.3.5
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling syn v2.0.51
[INFO] [stderr]    Compiling plotters-svg v0.3.5
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling rayon v1.9.0
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling plotters v0.3.5
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling rust-quadratic-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 31.54s
[INFO] running `Command { std: "docker" "inspect" "2419d4aff025b20a1db1ad2d39ce054e1890a08bc4e6edf61ae632690bfeb246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2419d4aff025b20a1db1ad2d39ce054e1890a08bc4e6edf61ae632690bfeb246", kill_on_drop: false }`
[INFO] [stdout] 2419d4aff025b20a1db1ad2d39ce054e1890a08bc4e6edf61ae632690bfeb246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f6a3e80a817a064ab85b9ea934709d87849da064ace36325c4d8337763f90aa4
[INFO] running `Command { std: "docker" "start" "-a" "f6a3e80a817a064ab85b9ea934709d87849da064ace36325c4d8337763f90aa4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_quadratic_solver-0f12568f168f15a1)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_complex_quadratic ... ok
[INFO] [stdout] test test::test_real_quadratic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_quadratic_solver-97b82118c177019f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_quadratic_solver
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - utils::print_results (line 121) ... ok
[INFO] [stdout] test src/lib.rs - quadratic::solve_quadratic (line 28) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - utils::write_results_to_file (line 163) ... FAILED
[INFO] [stdout] test src/lib.rs - utils::create_file (line 83) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - utils::write_results_to_file (line 163) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:11:43:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55cc17feeeb5 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x55cc17feeeb5 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55cc17feeeb5 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55cc17feeeb5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55cc1800ff7b - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x55cc1800ff7b - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x55cc17fed01f - std::io::Write::write_fmt::h456b7988df61daf3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x55cc17feec8e - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55cc17feec8e - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55cc17feff39 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x55cc17fefd08 - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x55cc17ff03d3 - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x55cc17ff02b4 - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x55cc17fef379 - std::sys_common::backtrace::__rust_end_short_backtrace::h19508a8f8ae71dc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x55cc17feffe7 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x55cc17fbded3 - core::panicking::panic_fmt::h2ba8af99174d83ea
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x55cc17fbe326 - core::result::unwrap_failed::h52f3bbb78b59f71d
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x55cc17fbf2ea - rust_out::main::_doctest_main_src_lib_rs_163_0::h08f6d36cfe56a38f
[INFO] [stdout]   18:     0x55cc17fbf266 - rust_out::main::h90fc46ea9798ded1
[INFO] [stdout]   19:     0x55cc17fbed13 - core::ops::function::FnOnce::call_once::h48eb9b1eb2de063c
[INFO] [stdout]   20:     0x55cc17fbe656 - std::sys_common::backtrace::__rust_begin_short_backtrace::h747a6d1e1b11dda9
[INFO] [stdout]   21:     0x55cc17fbea79 - std::rt::lang_start::{{closure}}::hc32502aff423e72f
[INFO] [stdout]   22:     0x55cc17fea48d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hac8b4a62b6f52371
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x55cc17fea48d - std::panicking::try::do_call::h6fc24bc97db29d34
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x55cc17fea48d - std::panicking::try::hc544b64aa2eea933
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x55cc17fea48d - std::panic::catch_unwind::hefb17e81fb559b9c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x55cc17fea48d - std::rt::lang_start_internal::{{closure}}::h834103e2d23d958b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x55cc17fea48d - std::panicking::try::do_call::he39c25d597788515
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x55cc17fea48d - std::panicking::try::hf4ef8dd97697f2c7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x55cc17fea48d - std::panic::catch_unwind::haa22d191a5c8abfb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x55cc17fea48d - std::rt::lang_start_internal::h8104aca277c551bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x55cc17fbea57 - std::rt::lang_start::h363611def46ee6df
[INFO] [stdout]   32:     0x55cc17fbf3e5 - main
[INFO] [stdout]   33:     0x7f9966b93d90 - <unknown>
[INFO] [stdout]   34:     0x7f9966b93e40 - __libc_start_main
[INFO] [stdout]   35:     0x55cc17fbe585 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - utils::create_file (line 83) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:104:25:
[INFO] [stdout] ERROR: Could not create file: example.csv due to: Read-only file system (os error 30)
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x560dc7ab0dc5 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x560dc7ab0dc5 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x560dc7ab0dc5 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x560dc7ab0dc5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x560dc7ace5bb - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x560dc7ace5bb - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x560dc7aaeebf - std::io::Write::write_fmt::h456b7988df61daf3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x560dc7ab0b9e - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x560dc7ab0b9e - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x560dc7ab1e49 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x560dc7ab1c18 - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x560dc7ab22e3 - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x560dc7ab21c4 - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x560dc7ab1289 - std::sys_common::backtrace::__rust_end_short_backtrace::h19508a8f8ae71dc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x560dc7ab1ef7 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x560dc7a84e53 - core::panicking::panic_fmt::h2ba8af99174d83ea
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x560dc7a879f3 - rust_quadratic_solver::utils::create_file::h30171c39ebd93eec
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:104:25
[INFO] [stdout]   17:     0x560dc7a860ed - rust_out::main::_doctest_main_src_lib_rs_83_0::h254a2a145eeac911
[INFO] [stdout]   18:     0x560dc7a860b6 - rust_out::main::h90fc46ea9798ded1
[INFO] [stdout]   19:     0x560dc7a85b83 - core::ops::function::FnOnce::call_once::h48eb9b1eb2de063c
[INFO] [stdout]   20:     0x560dc7a85596 - std::sys_common::backtrace::__rust_begin_short_backtrace::h747a6d1e1b11dda9
[INFO] [stdout]   21:     0x560dc7a858f9 - std::rt::lang_start::{{closure}}::hc32502aff423e72f
[INFO] [stdout]   22:     0x560dc7aacb4d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hac8b4a62b6f52371
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x560dc7aacb4d - std::panicking::try::do_call::h6fc24bc97db29d34
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x560dc7aacb4d - std::panicking::try::hc544b64aa2eea933
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x560dc7aacb4d - std::panic::catch_unwind::hefb17e81fb559b9c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x560dc7aacb4d - std::rt::lang_start_internal::{{closure}}::h834103e2d23d958b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x560dc7aacb4d - std::panicking::try::do_call::he39c25d597788515
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x560dc7aacb4d - std::panicking::try::hf4ef8dd97697f2c7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x560dc7aacb4d - std::panic::catch_unwind::haa22d191a5c8abfb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x560dc7aacb4d - std::rt::lang_start_internal::h8104aca277c551bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x560dc7a858d7 - std::rt::lang_start::h363611def46ee6df
[INFO] [stdout]   32:     0x560dc7a86115 - main
[INFO] [stdout]   33:     0x7fd6ba199d90 - <unknown>
[INFO] [stdout]   34:     0x7fd6ba199e40 - __libc_start_main
[INFO] [stdout]   35:     0x560dc7a854c5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - utils::create_file (line 83)
[INFO] [stdout]     src/lib.rs - utils::write_results_to_file (line 163)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f6a3e80a817a064ab85b9ea934709d87849da064ace36325c4d8337763f90aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a3e80a817a064ab85b9ea934709d87849da064ace36325c4d8337763f90aa4", kill_on_drop: false }`
[INFO] [stdout] f6a3e80a817a064ab85b9ea934709d87849da064ace36325c4d8337763f90aa4
