[INFO] fetching crate match_err 0.1.9...
[INFO] testing match_err-0.1.9 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate match_err 0.1.9 into /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate match_err 0.1.9 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0958ff3fde36b8afa68198917d94bacefc47459fa0d234d6201b3a82f15a23b
[INFO] running `Command { std: "docker" "start" "-a" "f0958ff3fde36b8afa68198917d94bacefc47459fa0d234d6201b3a82f15a23b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0958ff3fde36b8afa68198917d94bacefc47459fa0d234d6201b3a82f15a23b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0958ff3fde36b8afa68198917d94bacefc47459fa0d234d6201b3a82f15a23b", kill_on_drop: false }`
[INFO] [stdout] f0958ff3fde36b8afa68198917d94bacefc47459fa0d234d6201b3a82f15a23b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 170c96a3a6e3c650e6db8da370dd038cbbc69d14304889af19e57cf26b03c389
[INFO] running `Command { std: "docker" "start" "-a" "170c96a3a6e3c650e6db8da370dd038cbbc69d14304889af19e57cf26b03c389", 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 0.12s
[INFO] running `Command { std: "docker" "inspect" "170c96a3a6e3c650e6db8da370dd038cbbc69d14304889af19e57cf26b03c389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "170c96a3a6e3c650e6db8da370dd038cbbc69d14304889af19e57cf26b03c389", kill_on_drop: false }`
[INFO] [stdout] 170c96a3a6e3c650e6db8da370dd038cbbc69d14304889af19e57cf26b03c389
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6a4d725e00f0ef0dbd1480ff4dfad21bc89ecd82c79a41068b19affbc397f82
[INFO] running `Command { std: "docker" "start" "-a" "a6a4d725e00f0ef0dbd1480ff4dfad21bc89ecd82c79a41068b19affbc397f82", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling match_err v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "a6a4d725e00f0ef0dbd1480ff4dfad21bc89ecd82c79a41068b19affbc397f82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a4d725e00f0ef0dbd1480ff4dfad21bc89ecd82c79a41068b19affbc397f82", kill_on_drop: false }`
[INFO] [stdout] a6a4d725e00f0ef0dbd1480ff4dfad21bc89ecd82c79a41068b19affbc397f82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c823ce5e017e9550aa188a50cd4d8a1488be5812e7857ae578a87906d0ef5d7d
[INFO] running `Command { std: "docker" "start" "-a" "c823ce5e017e9550aa188a50cd4d8a1488be5812e7857ae578a87906d0ef5d7d", 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-e22eca7982547296)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests match_err
[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 6 tests
[INFO] [stdout] test src/lib.rs - (line 6) ... FAILED
[INFO] [stdout] test src/lib.rs - assert_if_error (line 143) ... 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 - assert_error (line 178) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... 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/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:559:5
[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: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[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 0.72s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "c823ce5e017e9550aa188a50cd4d8a1488be5812e7857ae578a87906d0ef5d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c823ce5e017e9550aa188a50cd4d8a1488be5812e7857ae578a87906d0ef5d7d", kill_on_drop: false }`
[INFO] [stdout] c823ce5e017e9550aa188a50cd4d8a1488be5812e7857ae578a87906d0ef5d7d
