[INFO] fetching crate tintify 1.0.1...
[INFO] testing tintify-1.0.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate tintify 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tintify 1.0.1
[INFO] finished tweaking crates.io crate tintify 1.0.1
[INFO] tweaked toml for crates.io crate tintify 1.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tintify 1.0.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tintify 1.0.1 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d84165008c855da80366e58a77c931c60a98d5c98eb2fb27edb18c61301fe1b3
[INFO] running `Command { std: "docker" "start" "-a" "d84165008c855da80366e58a77c931c60a98d5c98eb2fb27edb18c61301fe1b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d84165008c855da80366e58a77c931c60a98d5c98eb2fb27edb18c61301fe1b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d84165008c855da80366e58a77c931c60a98d5c98eb2fb27edb18c61301fe1b3", kill_on_drop: false }`
[INFO] [stdout] d84165008c855da80366e58a77c931c60a98d5c98eb2fb27edb18c61301fe1b3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b78e09c9767d6179dd8edae42c7e7312657450aa7d617db7cf7b4cda366e8f7
[INFO] running `Command { std: "docker" "start" "-a" "0b78e09c9767d6179dd8edae42c7e7312657450aa7d617db7cf7b4cda366e8f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling tintify v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "0b78e09c9767d6179dd8edae42c7e7312657450aa7d617db7cf7b4cda366e8f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b78e09c9767d6179dd8edae42c7e7312657450aa7d617db7cf7b4cda366e8f7", kill_on_drop: false }`
[INFO] [stdout] 0b78e09c9767d6179dd8edae42c7e7312657450aa7d617db7cf7b4cda366e8f7
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4586da9b71fddffa13eadad55f90e48f61706024987385a3fa7f50dfd115964f
[INFO] running `Command { std: "docker" "start" "-a" "4586da9b71fddffa13eadad55f90e48f61706024987385a3fa7f50dfd115964f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tintify v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "4586da9b71fddffa13eadad55f90e48f61706024987385a3fa7f50dfd115964f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4586da9b71fddffa13eadad55f90e48f61706024987385a3fa7f50dfd115964f", kill_on_drop: false }`
[INFO] [stdout] 4586da9b71fddffa13eadad55f90e48f61706024987385a3fa7f50dfd115964f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dbed1763e231b4fdb835aba1da9c83fda37e89d9912f2baa765b3ae0c278fd97
[INFO] running `Command { std: "docker" "start" "-a" "dbed1763e231b4fdb835aba1da9c83fda37e89d9912f2baa765b3ae0c278fd97", kill_on_drop: false }`
[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]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tintify-0db13bdde6c4f752)
[INFO] [stderr]    Doc-tests tintify
[INFO] [stdout] 
[INFO] [stdout] running 62 tests
[INFO] [stdout] test src/combo.rs - combo::ComboColorDisplay<'a,Fg,Bg,T>::bg (line 535) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgColorDisplay<'a,Bg,T>::fg (line 535) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgColorDisplay<'a,Bg,T>::into_styled (line 542) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboColorDisplay<'a,Fg,Bg,T>::color (line 537) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgColorDisplay<'a,Bg,T>::into_styled (line 563) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgDynColorDisplay<'a,Bg,T>::new (line 710) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgDynColorDisplay<'a,Bg,T>::on_color (line 764) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboColorDisplay<'a,Fg,Bg,T>::into_styled (line 563) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgColorDisplay<'a,Bg,T>::new (line 543) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgColorDisplay<'a,Bg,T>::bg (line 535) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgColorDisplay<'a,Bg,T>::on_color (line 537) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboColorDisplay<'a,Fg,Bg,T>::into_styled (line 542) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgDynColorDisplay<'a,Bg,T>::color (line 779) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboColorDisplay<'a,Fg,Bg,T>::on_color (line 537) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgColorDisplay<'a,Bg,T>::color (line 537) ... ok
[INFO] [stdout] test src/combo.rs - combo::BgDynColorDisplay<'a,Bg,T>::into_styled (line 730) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboColorDisplay<'a,Fg,Bg,T>::fg (line 535) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboColorDisplay<'a,Fg,Bg,T>::new (line 543) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboDynColorDisplay<'a,Fg,Bg,T>::color (line 872) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboDynColorDisplay<'a,Fg,Bg,T>::new (line 801) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgColorDisplay<'a,Fg,T>::bg (line 535) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgDynColorDisplay<'a,Fg,T>::color (line 687) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgColorDisplay<'a,Fg,T>::color (line 537) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboDynColorDisplay<'a,Fg,Bg,T>::into_styled (line 823) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgColorDisplay<'a,Fg,T>::on_color (line 537) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgColorDisplay<'a,Fg,T>::fg (line 535) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgDynColorDisplay<'a,Fg,T>::into_styled (line 638) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgDynColorDisplay<'a,Fg,T>::on_color (line 672) ... ok
[INFO] [stdout] test src/dyn_styles.rs - dyn_styles::Style::bg (line 200) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgColorDisplay<'a,Fg,T>::into_styled (line 542) ... ok
[INFO] [stdout] test src/combo.rs - combo::ComboDynColorDisplay<'a,Fg,Bg,T>::on_color (line 857) ... ok
[INFO] [stdout] test src/dyn_styles.rs - dyn_styles::Style::prefix_formatter (line 512) ... FAILED
[INFO] [stdout] test src/combo.rs - combo::FgDynColorDisplay<'a,Fg,T>::new (line 618) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgColorDisplay<'a,Fg,T>::new (line 543) ... ok
[INFO] [stdout] test src/dyn_styles.rs - dyn_styles::Style (line 73) ... ok
[INFO] [stdout] test src/dyn_styles.rs - dyn_styles::Style::fg (line 186) ... ok
[INFO] [stdout] test src/dyn_styles.rs - dyn_styles::Style::color (line 440) ... ok
[INFO] [stdout] test src/combo.rs - combo::FgColorDisplay<'a,Fg,T>::into_styled (line 563) ... ok
[INFO] [stdout] test src/lib.rs - colored (line 527) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 61) ... ok
[INFO] [stdout] test src/dyn_styles.rs - dyn_styles::Style::style (line 167) ... ok
[INFO] [stdout] test src/dyn_styles.rs - dyn_styles::Style::on_color (line 457) ... ok
[INFO] [stdout] test src/lib.rs - TintColorize::on_color (line 425) ... ok
[INFO] [stdout] test src/lib.rs - TintColorize::fg (line 272) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - (line 43) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] test src/lib.rs - TintColorize::color (line 409) ... ok
[INFO] [stdout] test src/styled_list.rs - styled_list::StyledList (line 54) ... ok
[INFO] [stdout] test src/lib.rs - TintColorize::bg (line 286) ... ok
[INFO] [stdout] test src/lib.rs - colored (line 537) ... ok
[INFO] [stdout] test src/lib.rs - TintColorize (line 214) ... ok
[INFO] [stdout] test src/styles.rs - styles::StrikeThroughDisplay<'a,T>::into_styled (line 368) ... ok
[INFO] [stdout] test src/styles.rs - styles::BoldDisplay<'a,T>::into_styled (line 35) ... ok
[INFO] [stdout] test src/styles.rs - styles::BlinkDisplay<'a,T>::into_styled (line 203) ... ok
[INFO] [stdout] test src/styles.rs - styles::ReversedDisplay<'a,T>::into_styled (line 285) ... ok
[INFO] [stdout] test src/styles.rs - styles::DimDisplay<'a,T>::into_styled (line 77) ... ok
[INFO] [stdout] test src/styles.rs - styles::ItalicDisplay<'a,T>::into_styled (line 119) ... ok
[INFO] [stdout] test src/styles.rs - styles::UnderlineDisplay<'a,T>::into_styled (line 161) ... ok
[INFO] [stdout] test src/styles.rs - styles::HiddenDisplay<'a,T>::into_styled (line 326) ... ok
[INFO] [stdout] test src/styles.rs - styles::BlinkFastDisplay<'a,T>::into_styled (line 244) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/dyn_styles.rs - dyn_styles::Style::prefix_formatter (line 512) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/dyn_styles.rs:526:29
[INFO] [stdout]    |
[INFO] [stdout]  4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_dyn_styles_rs_512_0() {
[INFO] [stdout]    |                                      ------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 17 | write!(output, "{}", prefix)?;
[INFO] [stdout]    |                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout]  4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_dyn_styles_rs_512_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]  5 | use std::fmt::Write;
[INFO] [stdout] ...
[INFO] [stdout] 22 | assert_eq!(output, "\x1b[31;44mHello\x1b[0m");
[INFO] [stdout] 23 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/dyn_styles.rs:529:29
[INFO] [stdout]    |
[INFO] [stdout]  4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_dyn_styles_rs_512_0() {
[INFO] [stdout]    |                                      ------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 20 | write!(output, "{}", suffix)?;
[INFO] [stdout]    |                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout]  4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_dyn_styles_rs_512_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]  5 | use std::fmt::Write;
[INFO] [stdout] ...
[INFO] [stdout] 22 | assert_eq!(output, "\x1b[31;44mHello\x1b[0m");
[INFO] [stdout] 23 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/dyn_styles.rs - dyn_styles::Style::prefix_formatter (line 512)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 61 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.53s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "dbed1763e231b4fdb835aba1da9c83fda37e89d9912f2baa765b3ae0c278fd97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbed1763e231b4fdb835aba1da9c83fda37e89d9912f2baa765b3ae0c278fd97", kill_on_drop: false }`
[INFO] [stdout] dbed1763e231b4fdb835aba1da9c83fda37e89d9912f2baa765b3ae0c278fd97