[INFO] fetching crate custom_error 1.9.2...
[INFO] testing custom_error-1.9.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate custom_error 1.9.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate custom_error 1.9.2
[INFO] finished tweaking crates.io crate custom_error 1.9.2
[INFO] tweaked toml for crates.io crate custom_error 1.9.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate custom_error 1.9.2 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] 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 09f062de6e7d5aed715d92b3d180048c85bcda97c209d99277e8e26c56d2a7b6
[INFO] running `Command { std: "docker" "start" "-a" "09f062de6e7d5aed715d92b3d180048c85bcda97c209d99277e8e26c56d2a7b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09f062de6e7d5aed715d92b3d180048c85bcda97c209d99277e8e26c56d2a7b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09f062de6e7d5aed715d92b3d180048c85bcda97c209d99277e8e26c56d2a7b6", kill_on_drop: false }`
[INFO] [stdout] 09f062de6e7d5aed715d92b3d180048c85bcda97c209d99277e8e26c56d2a7b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a94b65e460824dd41d90c69448191549facec5c14c0b6ba026d06a0fb391d667
[INFO] running `Command { std: "docker" "start" "-a" "a94b65e460824dd41d90c69448191549facec5c14c0b6ba026d06a0fb391d667", kill_on_drop: false }`
[INFO] [stderr]    Compiling custom_error v1.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "a94b65e460824dd41d90c69448191549facec5c14c0b6ba026d06a0fb391d667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94b65e460824dd41d90c69448191549facec5c14c0b6ba026d06a0fb391d667", kill_on_drop: false }`
[INFO] [stdout] a94b65e460824dd41d90c69448191549facec5c14c0b6ba026d06a0fb391d667
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b9e86edaef7c5a3b5b197c505bcb2e69fa4d50bbcefd8579628f851b7e754073
[INFO] running `Command { std: "docker" "start" "-a" "b9e86edaef7c5a3b5b197c505bcb2e69fa4d50bbcefd8579628f851b7e754073", kill_on_drop: false }`
[INFO] [stderr]    Compiling custom_error v1.9.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `description` is not used by name
[INFO] [stdout]    --> src/lib.rs:580:32
[INFO] [stdout]     |
[INFO] [stdout] 580 |         custom_error!(MyError {description: &'static str} = "{}");
[INFO] [stdout]     |                                ^^^^^^^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `x` is not used by name
[INFO] [stdout]    --> src/lib.rs:652:41
[INFO] [stdout]     |
[INFO] [stdout] 652 |             custom_error! {pub MyError {x: &'static str} = "{}"}
[INFO] [stdout]     |                                         ^ this named argument is referred to by position in formatting string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `x` is not used by name
[INFO] [stdout]    --> src/lib.rs:662:17
[INFO] [stdout]     |
[INFO] [stdout] 662 |                 x: &'static str
[INFO] [stdout]     |                 ^ this named argument is referred to by position in formatting string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "b9e86edaef7c5a3b5b197c505bcb2e69fa4d50bbcefd8579628f851b7e754073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9e86edaef7c5a3b5b197c505bcb2e69fa4d50bbcefd8579628f851b7e754073", kill_on_drop: false }`
[INFO] [stdout] b9e86edaef7c5a3b5b197c505bcb2e69fa4d50bbcefd8579628f851b7e754073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 692bff5ab6aa6695675c33068a030bcae3f41c6030502b8e8725ee220f9a7ec8
[INFO] running `Command { std: "docker" "start" "-a" "692bff5ab6aa6695675c33068a030bcae3f41c6030502b8e8725ee220f9a7ec8", kill_on_drop: false }`
[INFO] [stderr] warning: named argument `description` is not used by name
[INFO] [stderr]    --> src/lib.rs:580:32
[INFO] [stderr]     |
[INFO] [stderr] 580 |         custom_error!(MyError {description: &'static str} = "{}");
[INFO] [stderr]     |                                ^^^^^^^^^^^ this named argument is referred to by position in formatting string
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: named argument `x` is not used by name
[INFO] [stderr]    --> src/lib.rs:652:41
[INFO] [stderr]     |
[INFO] [stderr] 652 |             custom_error! {pub MyError {x: &'static str} = "{}"}
[INFO] [stderr]     |                                         ^ this named argument is referred to by position in formatting string
[INFO] [stderr] 
[INFO] [stderr] warning: named argument `x` is not used by name
[INFO] [stderr]    --> src/lib.rs:662:17
[INFO] [stderr]     |
[INFO] [stderr] 662 |                 x: &'static str
[INFO] [stderr]     |                 ^ this named argument is referred to by position in formatting string
[INFO] [stderr] 
[INFO] [stderr] warning: `custom_error` (lib test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/custom_error-3646d7a5894aa6fc)
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test tests::enum_with_field_lifetime ... ok
[INFO] [stdout] test tests::generic_error ... ok
[INFO] [stdout] test tests::custom_format_source ... ok
[INFO] [stdout] test tests::enum_with_box_dyn_source ... ok
[INFO] [stdout] test tests::from_source ... ok
[INFO] [stdout] test tests::generic_error_struct ... ok
[INFO] [stdout] test tests::enum_with_pub_derive_and_doc_comment ... ok
[INFO] [stdout] test tests::pub_error ... ok
[INFO] [stdout] test tests::pub_error_struct ... ok
[INFO] [stdout] test tests::lifetime_param_and_type_param ... ok
[INFO] [stdout] test tests::pub_error_struct_fields ... ok
[INFO] [stdout] test tests::enum_with_derive ... ok
[INFO] [stdout] test tests::single_error_case ... ok
[INFO] [stdout] test tests::single_error_case_with_braces ... ok
[INFO] [stdout] test tests::single_error_struct_case ... ok
[INFO] [stdout] test tests::struct_custom_format_source ... ok
[INFO] [stdout] test tests::struct_from_source ... ok
[INFO] [stdout] test tests::struct_lifetime_param_and_type_param ... ok
[INFO] [stdout] test tests::struct_source ... ok
[INFO] [stdout] test tests::struct_with_box_dyn_source ... ok
[INFO] [stdout] test tests::struct_with_custom_formatting ... ok
[INFO] [stdout] test tests::struct_with_error_data ... ok
[INFO] [stdout] test tests::struct_with_derive ... ok
[INFO] [stdout] test tests::struct_with_public_field ... ok
[INFO] [stdout] test tests::struct_with_source_and_others ... ok
[INFO] [stdout] test tests::three_error_cases ... ok
[INFO] [stdout] test tests::trailing_comma ... ok
[INFO] [stdout] test tests::with_doc_comments_for_fields ... ok
[INFO] [stdout] test tests::with_custom_formatting ... ok
[INFO] [stdout] test tests::lifetime_source_param ... ok
[INFO] [stdout] test tests::with_multiple_error_data ... ok
[INFO] [stdout] test tests::single_error_struct_case_with_braces ... ok
[INFO] [stdout] test tests::with_source_and_others ... ok
[INFO] [stdout] test tests::with_error_data ... ok
[INFO] [stdout] test tests::struct_with_field_documentation ... ok
[INFO] [stdout] test tests::struct_with_field_lifetime ... ok
[INFO] [stdout] test tests::struct_with_multiple_error_data ... ok
[INFO] [stdout] test tests::source ... ok
[INFO] [stdout] test tests::struct_lifetime_source_param ... ok
[INFO] [stdout] test tests::with_doc_comments_for_variants ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-e851b425c8e64b9a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests custom_error
[INFO] [stdout] test main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - custom_error (line 62) ... ok
[INFO] [stdout] test src/lib.rs - custom_error (line 47) ... ok
[INFO] [stdout] test src/lib.rs - custom_error (line 70) ... ok
[INFO] [stdout] test src/lib.rs - custom_error (line 118) ... ok
[INFO] [stdout] test src/lib.rs - custom_error (line 146) ... ok
[INFO] [stdout] test src/lib.rs - custom_error (line 190) ... ok
[INFO] [stdout] test src/lib.rs - custom_error (line 160) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "692bff5ab6aa6695675c33068a030bcae3f41c6030502b8e8725ee220f9a7ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "692bff5ab6aa6695675c33068a030bcae3f41c6030502b8e8725ee220f9a7ec8", kill_on_drop: false }`
[INFO] [stdout] 692bff5ab6aa6695675c33068a030bcae3f41c6030502b8e8725ee220f9a7ec8