[INFO] fetching crate match_err 0.1.9...
[INFO] testing match_err-0.1.9 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate match_err 0.1.9 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate match_err 0.1.9
[INFO] finished tweaking crates.io crate match_err 0.1.9
[INFO] tweaked toml for crates.io crate match_err 0.1.9 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate match_err 0.1.9 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34d24dd0756c250479547cdbc13ca900965407e34e3ead169b9f6560c41a5280
[INFO] running `Command { std: "docker" "start" "-a" "34d24dd0756c250479547cdbc13ca900965407e34e3ead169b9f6560c41a5280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34d24dd0756c250479547cdbc13ca900965407e34e3ead169b9f6560c41a5280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d24dd0756c250479547cdbc13ca900965407e34e3ead169b9f6560c41a5280", kill_on_drop: false }`
[INFO] [stdout] 34d24dd0756c250479547cdbc13ca900965407e34e3ead169b9f6560c41a5280
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3dae62cdcff72b1a85aef83f3d3e43cbac968efb10e4022e88467feece2e324
[INFO] running `Command { std: "docker" "start" "-a" "e3dae62cdcff72b1a85aef83f3d3e43cbac968efb10e4022e88467feece2e324", kill_on_drop: false }`
[INFO] [stderr]    Compiling match_err v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "e3dae62cdcff72b1a85aef83f3d3e43cbac968efb10e4022e88467feece2e324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3dae62cdcff72b1a85aef83f3d3e43cbac968efb10e4022e88467feece2e324", kill_on_drop: false }`
[INFO] [stdout] e3dae62cdcff72b1a85aef83f3d3e43cbac968efb10e4022e88467feece2e324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38608bae7e9cedbb78ad33f1de7eb9735a680a245dae313d317ad02017593ccd
[INFO] running `Command { std: "docker" "start" "-a" "38608bae7e9cedbb78ad33f1de7eb9735a680a245dae313d317ad02017593ccd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling match_err v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.86s
[INFO] running `Command { std: "docker" "inspect" "38608bae7e9cedbb78ad33f1de7eb9735a680a245dae313d317ad02017593ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38608bae7e9cedbb78ad33f1de7eb9735a680a245dae313d317ad02017593ccd", kill_on_drop: false }`
[INFO] [stdout] 38608bae7e9cedbb78ad33f1de7eb9735a680a245dae313d317ad02017593ccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77c37cc830f307462acad1c2d927b5d04cc294128795fe3076723d6c83c92799
[INFO] running `Command { std: "docker" "start" "-a" "77c37cc830f307462acad1c2d927b5d04cc294128795fe3076723d6c83c92799", 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/match_err-49622bd5099e0318)
[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 match_err
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 6) ... FAILED
[INFO] [stdout] test src/lib.rs - assert_error (line 178) ... ok
[INFO] [stdout] test src/lib.rs - match_if_err (line 95) ... ok
[INFO] [stdout] test src/lib.rs - match_err (line 43) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - assert_if_error (line 143) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 6) stdout ----
[INFO] [stdout] error: unexpected `...`
[INFO] [stdout]  --> src/lib.rs:10:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |             ...
[INFO] [stdout]   |             ^^^ not a valid pattern
[INFO] [stdout]   |
[INFO] [stdout] help: for a rest pattern, use `..` instead of `...`
[INFO] [stdout]   |
[INFO] [stdout] 6 -             ...
[INFO] [stdout] 6 +             ..
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `err` in this scope
[INFO] [stdout]  --> src/lib.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | if let Err(e) = err {
[INFO] [stdout]   |                 ^^^ help: a tuple variant with a similar name exists: `Err`
[INFO] [stdout]   |
[INFO] [stdout]  --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:566:5
[INFO] [stdout]   |
[INFO] [stdout]   = note: similarly named tuple variant `Err` defined here
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Error` in this scope
[INFO] [stdout]  --> src/lib.rs:8:39
[INFO] [stdout]   |
[INFO] [stdout] 4 |     if let Some(e) = e.downcast_ref::<Error>() {
[INFO] [stdout]   |                                       ^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::error::Error;
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fmt::Error;
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::io::Error;
[INFO] [stdout]   |
[INFO] [stdout] 2 + use core::error::Error;
[INFO] [stdout]   |
[INFO] [stdout]   = and 2 other candidates
[INFO] [stdout] 
[INFO] [stdout] error: `match` arm with no body
[INFO] [stdout]  --> src/lib.rs:10:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |             ...
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: add a body after the pattern
[INFO] [stdout]   |
[INFO] [stdout] 6 |             ... => { todo!() }
[INFO] [stdout]   |                 ++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: `..` patterns are not allowed here
[INFO] [stdout]  --> src/lib.rs:10:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |             ...
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: only allowed in tuple, tuple struct, and slice patterns
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]  --> src/lib.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     if let Some(e) = e.downcast_ref::<Error>() {
[INFO] [stdout]   |                      ^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0412, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 6)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "77c37cc830f307462acad1c2d927b5d04cc294128795fe3076723d6c83c92799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77c37cc830f307462acad1c2d927b5d04cc294128795fe3076723d6c83c92799", kill_on_drop: false }`
[INFO] [stdout] 77c37cc830f307462acad1c2d927b5d04cc294128795fe3076723d6c83c92799
