[INFO] fetching crate polyerror 0.0.2...
[INFO] testing polyerror-0.0.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate polyerror 0.0.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate polyerror 0.0.2
[INFO] finished tweaking crates.io crate polyerror 0.0.2
[INFO] tweaked toml for crates.io crate polyerror 0.0.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polyerror 0.0.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.110)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99ccabca31f7e266d7d390a78d9b1eaa92c6fc44a6c6dceef5a034c0cc21ee72
[INFO] running `Command { std: "docker" "start" "-a" "99ccabca31f7e266d7d390a78d9b1eaa92c6fc44a6c6dceef5a034c0cc21ee72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99ccabca31f7e266d7d390a78d9b1eaa92c6fc44a6c6dceef5a034c0cc21ee72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99ccabca31f7e266d7d390a78d9b1eaa92c6fc44a6c6dceef5a034c0cc21ee72", kill_on_drop: false }`
[INFO] [stdout] 99ccabca31f7e266d7d390a78d9b1eaa92c6fc44a6c6dceef5a034c0cc21ee72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33c3e00e40c9616fd868558f934e909cf3fc8c49c1c794bd8dce48ed3ffaf4a5
[INFO] running `Command { std: "docker" "start" "-a" "33c3e00e40c9616fd868558f934e909cf3fc8c49c1c794bd8dce48ed3ffaf4a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling polyerror v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.58s
[INFO] running `Command { std: "docker" "inspect" "33c3e00e40c9616fd868558f934e909cf3fc8c49c1c794bd8dce48ed3ffaf4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c3e00e40c9616fd868558f934e909cf3fc8c49c1c794bd8dce48ed3ffaf4a5", kill_on_drop: false }`
[INFO] [stdout] 33c3e00e40c9616fd868558f934e909cf3fc8c49c1c794bd8dce48ed3ffaf4a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcc27da337b5a3d409afd7b2e1020cd24aba1a906659dcdd9d8ac80a2ec36cda
[INFO] running `Command { std: "docker" "start" "-a" "fcc27da337b5a3d409afd7b2e1020cd24aba1a906659dcdd9d8ac80a2ec36cda", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling polyerror v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/basic_use.rs:10:62
[INFO] [stdout]    |
[INFO] [stdout] 10 |     create_error!(pub ParseThenCombineError: ParseBoolError, ParseIntError);
[INFO] [stdout]    |     ---------------------------------------------------------^^^^^^^^^^^^^- field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseThenCombineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     create_error!(pub ParseThenCombineError: ParseBoolError, ParseIntError);
[INFO] [stdout] 10 +     create_error!(pub ParseThenCombineError: ParseBoolError, ());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "fcc27da337b5a3d409afd7b2e1020cd24aba1a906659dcdd9d8ac80a2ec36cda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc27da337b5a3d409afd7b2e1020cd24aba1a906659dcdd9d8ac80a2ec36cda", kill_on_drop: false }`
[INFO] [stdout] fcc27da337b5a3d409afd7b2e1020cd24aba1a906659dcdd9d8ac80a2ec36cda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60ce444c6c773bb9d93840c1412cd34ef0b64e6b74842c0f20229662ee97e3af
[INFO] running `Command { std: "docker" "start" "-a" "60ce444c6c773bb9d93840c1412cd34ef0b64e6b74842c0f20229662ee97e3af", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> tests/basic_use.rs:10:62
[INFO] [stderr]    |
[INFO] [stderr] 10 |     create_error!(pub ParseThenCombineError: ParseBoolError, ParseIntError);
[INFO] [stderr]    |     ---------------------------------------------------------^^^^^^^^^^^^^- field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseThenCombineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 10 -     create_error!(pub ParseThenCombineError: ParseBoolError, ParseIntError);
[INFO] [stderr] 10 +     create_error!(pub ParseThenCombineError: ParseBoolError, ());
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `polyerror` (test "basic_use") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/polyerror-c1f9f1ba1e6ccf81)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parser::test_parse_of_error_specification ... 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 tests/basic_use.rs (/opt/rustwide/target/debug/deps/basic_use-615c09fcd495c6cb)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_malformed_int ... ok
[INFO] [stdout] test test_succeeds ... ok
[INFO] [stdout] test test_malformed_bool ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests polyerror
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 43) ... ignored
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60ce444c6c773bb9d93840c1412cd34ef0b64e6b74842c0f20229662ee97e3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60ce444c6c773bb9d93840c1412cd34ef0b64e6b74842c0f20229662ee97e3af", kill_on_drop: false }`
[INFO] [stdout] 60ce444c6c773bb9d93840c1412cd34ef0b64e6b74842c0f20229662ee97e3af