[INFO] fetching crate mathcalculate 0.1.2... [INFO] testing mathcalculate-0.1.2 against 1.91.0 for beta-1.92-2 [INFO] extracting crate mathcalculate 0.1.2 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate mathcalculate 0.1.2 [INFO] finished tweaking crates.io crate mathcalculate 0.1.2 [INFO] tweaked toml for crates.io crate mathcalculate 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate mathcalculate 0.1.2 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5bb75ffbead779856fd1e62913f0f2fc9d003a9a7b775c5578e850b3df6df402 [INFO] running `Command { std: "docker" "start" "-a" "5bb75ffbead779856fd1e62913f0f2fc9d003a9a7b775c5578e850b3df6df402", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5bb75ffbead779856fd1e62913f0f2fc9d003a9a7b775c5578e850b3df6df402", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bb75ffbead779856fd1e62913f0f2fc9d003a9a7b775c5578e850b3df6df402", kill_on_drop: false }` [INFO] [stdout] 5bb75ffbead779856fd1e62913f0f2fc9d003a9a7b775c5578e850b3df6df402 [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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 78a63711f34fba7d3ad9a9159ff70d3040547d5ba81c72cde00b088ba1e17eea [INFO] running `Command { std: "docker" "start" "-a" "78a63711f34fba7d3ad9a9159ff70d3040547d5ba81c72cde00b088ba1e17eea", kill_on_drop: false }` [INFO] [stderr] Compiling mathcalculate v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "78a63711f34fba7d3ad9a9159ff70d3040547d5ba81c72cde00b088ba1e17eea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78a63711f34fba7d3ad9a9159ff70d3040547d5ba81c72cde00b088ba1e17eea", kill_on_drop: false }` [INFO] [stdout] 78a63711f34fba7d3ad9a9159ff70d3040547d5ba81c72cde00b088ba1e17eea [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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e778269bbd19a44aad726a4c5dbe4b2565d42e8c6d3d3746840ab8a32f1d5089 [INFO] running `Command { std: "docker" "start" "-a" "e778269bbd19a44aad726a4c5dbe4b2565d42e8c6d3d3746840ab8a32f1d5089", kill_on_drop: false }` [INFO] [stderr] Compiling mathcalculate v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `Command { std: "docker" "inspect" "e778269bbd19a44aad726a4c5dbe4b2565d42e8c6d3d3746840ab8a32f1d5089", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e778269bbd19a44aad726a4c5dbe4b2565d42e8c6d3d3746840ab8a32f1d5089", kill_on_drop: false }` [INFO] [stdout] e778269bbd19a44aad726a4c5dbe4b2565d42e8c6d3d3746840ab8a32f1d5089 [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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 42bd35a6fb1d970db7e0c229b33461df93b55c7c0e1ca8ff7a4aec897d4b9db4 [INFO] running `Command { std: "docker" "start" "-a" "42bd35a6fb1d970db7e0c229b33461df93b55c7c0e1ca8ff7a4aec897d4b9db4", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mathcalculate-f7f64c6d07104126) [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 mathcalculate [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - add (line 7) ... ok [INFO] [stdout] test src/lib.rs - divide (line 49) ... ok [INFO] [stdout] test src/lib.rs - remove (line 21) ... FAILED [INFO] [stdout] test src/lib.rs - multiply (line 35) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - remove (line 21) stdout ---- [INFO] [stdout] Test executable failed (exit status: 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] [INFO] [stdout] thread 'main' (137) panicked at src/lib.rs:29:5: [INFO] [stdout] attempt to subtract with overflow [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5628fe1d9102 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5628fe1d9102 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5628fe1d9102 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5628fe1d9102 - ::fmt::h4e0a3aeea0f9c085 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5628fe1e7daf - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5628fe1e7daf - core::fmt::write::hecf68a131630c74d [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5628fe1b6d81 - std::io::default_write_fmt::haf8355dc2afbec95 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5628fe1b6d81 - std::io::Write::write_fmt::h93c9a261259c931a [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5628fe1bc262 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5628fe1bdb9c - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5628fe1bd9f6 - std::panicking::default_hook::h63f9bf8161c5d325 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:328:9 [INFO] [stdout] 11: 0x5628fe1be225 - std::panicking::panic_with_hook::h3173740e06bd0752 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:834:13 [INFO] [stdout] 12: 0x5628fe1be086 - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:700:13 [INFO] [stdout] 13: 0x5628fe1bc399 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 14: 0x5628fe1ab8bd - __rustc[de0091b922c53d7e]::rust_begin_unwind [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5 [INFO] [stdout] 15: 0x5628fe1eae40 - core::panicking::panic_fmt::h5138da2ef87be35b [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:75:14 [INFO] [stdout] 16: 0x5628fe1eaaf7 - core::panicking::panic_const::panic_const_sub_overflow::hf512496786ed9e49 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:175:17 [INFO] [stdout] 17: 0x5628fe1ab623 - mathcalculate::remove::h26b7202b4d4a1b98 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:29:5 [INFO] [stdout] 18: 0x5628fe1ab514 - rust_out::main::hcbdc0960c876f2af [INFO] [stdout] 19: 0x5628fe1ab4e3 - core::ops::function::FnOnce::call_once::hfb4119cacd246208 [INFO] [stdout] 20: 0x5628fe1ab416 - std::sys::backtrace::__rust_begin_short_backtrace::h410c329a888fe2f7 [INFO] [stdout] 21: 0x5628fe1ab3f9 - std::rt::lang_start::{{closure}}::h39fc2126d871a896 [INFO] [stdout] 22: 0x5628fe1b82e0 - core::ops::function::impls:: for &F>::call_once::hc7ed5622678f5124 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:287:21 [INFO] [stdout] 23: 0x5628fe1b82e0 - std::panicking::catch_unwind::do_call::hc59414a11cf2a25a [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40 [INFO] [stdout] 24: 0x5628fe1b82e0 - std::panicking::catch_unwind::hff67b45e0819a036 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19 [INFO] [stdout] 25: 0x5628fe1b82e0 - std::panic::catch_unwind::hec0fb0db85f7fd60 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14 [INFO] [stdout] 26: 0x5628fe1b82e0 - std::rt::lang_start_internal::{{closure}}::h74bea026352620a3 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:175:24 [INFO] [stdout] 27: 0x5628fe1b82e0 - std::panicking::catch_unwind::do_call::h931ef1bf7bdfcae2 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40 [INFO] [stdout] 28: 0x5628fe1b82e0 - std::panicking::catch_unwind::h3816830c825cbe04 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19 [INFO] [stdout] 29: 0x5628fe1b82e0 - std::panic::catch_unwind::h408406c8f02ebb9d [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x5628fe1b82e0 - std::rt::lang_start_internal::hce2b8b328837374b [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:171:5 [INFO] [stdout] 31: 0x5628fe1ab3e1 - std::rt::lang_start::h866de1957bb2b812 [INFO] [stdout] 32: 0x5628fe1ab575 - main [INFO] [stdout] 33: 0x79964ed651ca - [INFO] [stdout] 34: 0x79964ed6528b - __libc_start_main [INFO] [stdout] 35: 0x5628fe1ab2f5 - _start [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - remove (line 21) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "42bd35a6fb1d970db7e0c229b33461df93b55c7c0e1ca8ff7a4aec897d4b9db4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42bd35a6fb1d970db7e0c229b33461df93b55c7c0e1ca8ff7a4aec897d4b9db4", kill_on_drop: false }` [INFO] [stdout] 42bd35a6fb1d970db7e0c229b33461df93b55c7c0e1ca8ff7a4aec897d4b9db4