[INFO] fetching crate polyerror 0.0.2...
[INFO] testing polyerror-0.0.2 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate polyerror 0.0.2 into /workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polyerror 0.0.2 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdc9e2576d69d3cc134f050bfc0b6db8f1faf70cb4e53f1add4fe2fb9db9233e
[INFO] running `Command { std: "docker" "start" "-a" "bdc9e2576d69d3cc134f050bfc0b6db8f1faf70cb4e53f1add4fe2fb9db9233e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdc9e2576d69d3cc134f050bfc0b6db8f1faf70cb4e53f1add4fe2fb9db9233e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdc9e2576d69d3cc134f050bfc0b6db8f1faf70cb4e53f1add4fe2fb9db9233e", kill_on_drop: false }`
[INFO] [stdout] bdc9e2576d69d3cc134f050bfc0b6db8f1faf70cb4e53f1add4fe2fb9db9233e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d23f7615aa19b7ea1a3cd9fb4e16a29dce6159f995e2963f9809f5ec6b902347
[INFO] running `Command { std: "docker" "start" "-a" "d23f7615aa19b7ea1a3cd9fb4e16a29dce6159f995e2963f9809f5ec6b902347", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.5.0
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "d23f7615aa19b7ea1a3cd9fb4e16a29dce6159f995e2963f9809f5ec6b902347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d23f7615aa19b7ea1a3cd9fb4e16a29dce6159f995e2963f9809f5ec6b902347", kill_on_drop: false }`
[INFO] [stdout] d23f7615aa19b7ea1a3cd9fb4e16a29dce6159f995e2963f9809f5ec6b902347
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3778f7bee741a33126f8c40eac9521b6bbda99c4aead3bf130a7cda4bbc22bcd
[INFO] running `Command { std: "docker" "start" "-a" "3778f7bee741a33126f8c40eac9521b6bbda99c4aead3bf130a7cda4bbc22bcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling regex v1.11.3
[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 5.71s
[INFO] running `Command { std: "docker" "inspect" "3778f7bee741a33126f8c40eac9521b6bbda99c4aead3bf130a7cda4bbc22bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3778f7bee741a33126f8c40eac9521b6bbda99c4aead3bf130a7cda4bbc22bcd", kill_on_drop: false }`
[INFO] [stdout] 3778f7bee741a33126f8c40eac9521b6bbda99c4aead3bf130a7cda4bbc22bcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0430be322c8f4fe862135460eb934704275f72a97b163c1f09bc114dec5edf2
[INFO] running `Command { std: "docker" "start" "-a" "f0430be322c8f4fe862135460eb934704275f72a97b163c1f09bc114dec5edf2", 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 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/polyerror-4dce0790527fa58d)
[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-26ec572290aea568)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_malformed_bool ... ok
[INFO] [stdout] test test_succeeds ... ok
[INFO] [stdout] test test_malformed_int ... 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 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f0430be322c8f4fe862135460eb934704275f72a97b163c1f09bc114dec5edf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0430be322c8f4fe862135460eb934704275f72a97b163c1f09bc114dec5edf2", kill_on_drop: false }`
[INFO] [stdout] f0430be322c8f4fe862135460eb934704275f72a97b163c1f09bc114dec5edf2