[INFO] fetching crate expression_simplify 1.0.1...
[INFO] testing expression_simplify-1.0.1 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate expression_simplify 1.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate expression_simplify 1.0.1
[INFO] finished tweaking crates.io crate expression_simplify 1.0.1
[INFO] tweaked toml for crates.io crate expression_simplify 1.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate expression_simplify 1.0.1 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate expression_simplify 1.0.1 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" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14dbbabca801aa2c0171ab0083bef2b50741f4a05fb4db528846bae3a42384d6
[INFO] running `Command { std: "docker" "start" "-a" "14dbbabca801aa2c0171ab0083bef2b50741f4a05fb4db528846bae3a42384d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14dbbabca801aa2c0171ab0083bef2b50741f4a05fb4db528846bae3a42384d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14dbbabca801aa2c0171ab0083bef2b50741f4a05fb4db528846bae3a42384d6", kill_on_drop: false }`
[INFO] [stdout] 14dbbabca801aa2c0171ab0083bef2b50741f4a05fb4db528846bae3a42384d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d18142653fe92c88e8aa59cc24843548d9bf9e01e86cc0b6d5427cd60f50039e
[INFO] running `Command { std: "docker" "start" "-a" "d18142653fe92c88e8aa59cc24843548d9bf9e01e86cc0b6d5427cd60f50039e", kill_on_drop: false }`
[INFO] [stderr]    Compiling expression_simplify v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "d18142653fe92c88e8aa59cc24843548d9bf9e01e86cc0b6d5427cd60f50039e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18142653fe92c88e8aa59cc24843548d9bf9e01e86cc0b6d5427cd60f50039e", kill_on_drop: false }`
[INFO] [stdout] d18142653fe92c88e8aa59cc24843548d9bf9e01e86cc0b6d5427cd60f50039e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eeb4d7b4c32d5ba711e1eb9031252a1ac47044184bcf95c2f2adc27b4f9db5c
[INFO] running `Command { std: "docker" "start" "-a" "3eeb4d7b4c32d5ba711e1eb9031252a1ac47044184bcf95c2f2adc27b4f9db5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling expression_simplify v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "3eeb4d7b4c32d5ba711e1eb9031252a1ac47044184bcf95c2f2adc27b4f9db5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eeb4d7b4c32d5ba711e1eb9031252a1ac47044184bcf95c2f2adc27b4f9db5c", kill_on_drop: false }`
[INFO] [stdout] 3eeb4d7b4c32d5ba711e1eb9031252a1ac47044184bcf95c2f2adc27b4f9db5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1529a6aedcb8cffdac83c78a5e8a7583c317f27fcd472f54662b7d2fe5167b22
[INFO] running `Command { std: "docker" "start" "-a" "1529a6aedcb8cffdac83c78a5e8a7583c317f27fcd472f54662b7d2fe5167b22", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/expression_simplify-817c792a45fd02bf)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test simplifier::parse::lexer::lexer_module::lexer_test::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/expression_simplify-f830885d8de86517)
[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 expression_simplify
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 7) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stdout:
[INFO] [stdout] Enter the expression you want to simplify: 
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (57) panicked at src/simplifier/simplify/mod.rs:52:21:
[INFO] [stdout] attempt to subtract with overflow
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56c09ca160d2 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x56c09ca160d2 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x56c09ca160d2 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x56c09ca160d2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x56c09ca255ca - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x56c09ca255ca - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x56c09c9f3e16 - std::io::default_write_fmt::h72db0b4dbd5dcfa2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x56c09c9f3e16 - std::io::Write::write_fmt::hb496f2b9b027aa16
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x56c09c9fb626 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x56c09c9fb626 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x56c09c9fb486 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x56c09c9fb86b - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x56c09c9fb71a - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:691:13
[INFO] [stdout]   13:     0x56c09c9f9af9 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x56c09c9e8afd - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x56c09ca2876c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x56c09ca284d9 - core::panicking::panic_const::panic_const_sub_overflow::h65ab8bb9d5c6a2db
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:175:17
[INFO] [stdout]   17:     0x56c09c9dd60b - expression_simplify::simplifier::simplify::simplifier_module::delete_pre_add::h7158c36976d82f4e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/simplifier/simplify/mod.rs:52:21
[INFO] [stdout]   18:     0x56c09c9dd4f7 - expression_simplify::simplifier::simplify::simplifier_module::presimplify::ha34eab4fbb8e3a29
[INFO] [stdout]                                at /opt/rustwide/workdir/src/simplifier/simplify/mod.rs:6:9
[INFO] [stdout]   19:     0x56c09c9d4862 - expression_simplify::simplifier::inputhandler::input_handler::read_input::h5fa1a60c688affeb
[INFO] [stdout]                                at /opt/rustwide/workdir/src/simplifier/inputhandler/mod.rs:12:9
[INFO] [stdout]   20:     0x56c09c9d42b7 - rust_out::main::hfd6f621749dac69f
[INFO] [stdout]   21:     0x56c09c9d4293 - core::ops::function::FnOnce::call_once::hb1397b18da3aaedb
[INFO] [stdout]   22:     0x56c09c9d4236 - std::sys::backtrace::__rust_begin_short_backtrace::h8c9a816bbcffd5a8
[INFO] [stdout]   23:     0x56c09c9d4219 - std::rt::lang_start::{{closure}}::he61f35d05d768b48
[INFO] [stdout]   24:     0x56c09c9f55f6 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd1cc8864ab2ce613
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   25:     0x56c09c9f55f6 - std::panicking::catch_unwind::do_call::h761b8a8d54647a61
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   26:     0x56c09c9f55f6 - std::panicking::catch_unwind::hb78a0edcad597ebc
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   27:     0x56c09c9f55f6 - std::panic::catch_unwind::hf40177800cac754b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   28:     0x56c09c9f55f6 - std::rt::lang_start_internal::{{closure}}::ha1b3ca2f45db2265
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:175:24
[INFO] [stdout]   29:     0x56c09c9f55f6 - std::panicking::catch_unwind::do_call::hca68f60e509d57f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x56c09c9f55f6 - std::panicking::catch_unwind::h75a65b4419799b0f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x56c09c9f55f6 - std::panic::catch_unwind::h56fc4c7ccdf741b6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x56c09c9f55f6 - std::rt::lang_start_internal::h267ec6e0203f10ab
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:171:5
[INFO] [stdout]   33:     0x56c09c9d4201 - std::rt::lang_start::h9890a617c1815e16
[INFO] [stdout]   34:     0x56c09c9d42d5 - main
[INFO] [stdout]   35:     0x7a095ea5b1ca - <unknown>
[INFO] [stdout]   36:     0x7a095ea5b28b - __libc_start_main
[INFO] [stdout]   37:     0x56c09c9d4115 - _start
[INFO] [stdout]   38:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 7)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "1529a6aedcb8cffdac83c78a5e8a7583c317f27fcd472f54662b7d2fe5167b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1529a6aedcb8cffdac83c78a5e8a7583c317f27fcd472f54662b7d2fe5167b22", kill_on_drop: false }`
[INFO] [stdout] 1529a6aedcb8cffdac83c78a5e8a7583c317f27fcd472f54662b7d2fe5167b22
