[INFO] cloning repository https://github.com/blkmlk/match_err
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blkmlk/match_err" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblkmlk%2Fmatch_err", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblkmlk%2Fmatch_err'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0131cb1541a9783d2c042811caa2190442ca0bb3
[INFO] testing blkmlk/match_err against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblkmlk%2Fmatch_err" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/blkmlk/match_err
[INFO] finished tweaking git repo https://github.com/blkmlk/match_err
[INFO] tweaked toml for git repo https://github.com/blkmlk/match_err written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/blkmlk/match_err on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/blkmlk/match_err 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 393f68c1ea8222a8e99f3f7439e8f8e6bd2747a87f3bf1a81b8c460362d00879
[INFO] running `Command { std: "docker" "start" "-a" "393f68c1ea8222a8e99f3f7439e8f8e6bd2747a87f3bf1a81b8c460362d00879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "393f68c1ea8222a8e99f3f7439e8f8e6bd2747a87f3bf1a81b8c460362d00879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393f68c1ea8222a8e99f3f7439e8f8e6bd2747a87f3bf1a81b8c460362d00879", kill_on_drop: false }`
[INFO] [stdout] 393f68c1ea8222a8e99f3f7439e8f8e6bd2747a87f3bf1a81b8c460362d00879
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1b765bdfd2d7652642aca5689b8c3303d2c28408a5b775603ffff932e40ff26
[INFO] running `Command { std: "docker" "start" "-a" "d1b765bdfd2d7652642aca5689b8c3303d2c28408a5b775603ffff932e40ff26", 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 0.14s
[INFO] running `Command { std: "docker" "inspect" "d1b765bdfd2d7652642aca5689b8c3303d2c28408a5b775603ffff932e40ff26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b765bdfd2d7652642aca5689b8c3303d2c28408a5b775603ffff932e40ff26", kill_on_drop: false }`
[INFO] [stdout] d1b765bdfd2d7652642aca5689b8c3303d2c28408a5b775603ffff932e40ff26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f977883f146c02e4a4bf19e5910def08614f146552672966e2116b52dcf3527b
[INFO] running `Command { std: "docker" "start" "-a" "f977883f146c02e4a4bf19e5910def08614f146552672966e2116b52dcf3527b", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling match_err v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "f977883f146c02e4a4bf19e5910def08614f146552672966e2116b52dcf3527b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f977883f146c02e4a4bf19e5910def08614f146552672966e2116b52dcf3527b", kill_on_drop: false }`
[INFO] [stdout] f977883f146c02e4a4bf19e5910def08614f146552672966e2116b52dcf3527b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0d12ed66a104d7e8425c29686e8467a9dfe58edaa941f02a9d4f788aa097795f
[INFO] running `Command { std: "docker" "start" "-a" "0d12ed66a104d7e8425c29686e8467a9dfe58edaa941f02a9d4f788aa097795f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/match_err-ce9a0e8567f78515)
[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 - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - assert_error (line 178) ... ok
[INFO] [stdout] test src/lib.rs - assert_if_error (line 143) ... ok
[INFO] [stdout] test src/lib.rs - match_err (line 43) ... ok
[INFO] [stdout] test src/lib.rs - match_if_err (line 95) ... 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] 10 |             ...
[INFO] [stdout]    |             ^^^ not a valid pattern
[INFO] [stdout]    |
[INFO] [stdout] help: for a rest pattern, use `..` instead of `...`
[INFO] [stdout]    |
[INFO] [stdout] 10 -             ...
[INFO] [stdout] 10 +             ..
[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] 7 | if let Err(e) = err {
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]  --> /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/result.rs:566:4
[INFO] [stdout]   |
[INFO] [stdout]   = note: similarly named tuple variant `Err` defined here
[INFO] [stdout] help: a tuple variant with a similar name exists
[INFO] [stdout]   |
[INFO] [stdout] 7 - if let Err(e) = err {
[INFO] [stdout] 7 + if let Err(e) = Err {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Error` in this scope
[INFO] [stdout]  --> src/lib.rs:8:39
[INFO] [stdout]   |
[INFO] [stdout] 8 |     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] 6 + use std::error::Error;
[INFO] [stdout]   |
[INFO] [stdout] 6 + use std::fmt::Error;
[INFO] [stdout]   |
[INFO] [stdout] 6 + use std::io::Error;
[INFO] [stdout]   |
[INFO] [stdout] 6 + use core::error::Error;
[INFO] [stdout]   |
[INFO] [stdout]   = and 1 other candidate
[INFO] [stdout] 
[INFO] [stdout] error: `match` arm with no body
[INFO] [stdout]   --> src/lib.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |             ...
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: add a body after the pattern
[INFO] [stdout]    |
[INFO] [stdout] 10 |             ... => { todo!() }
[INFO] [stdout]    |                 ++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: `..` patterns are not allowed here
[INFO] [stdout]   --> src/lib.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |             ...
[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] For more information about this error, try `rustc --explain E0425`.
[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 0.51s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "0d12ed66a104d7e8425c29686e8467a9dfe58edaa941f02a9d4f788aa097795f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d12ed66a104d7e8425c29686e8467a9dfe58edaa941f02a9d4f788aa097795f", kill_on_drop: false }`
[INFO] [stdout] 0d12ed66a104d7e8425c29686e8467a9dfe58edaa941f02a9d4f788aa097795f
