[INFO] fetching crate wrap-match 1.0.7... [INFO] checking wrap-match-1.0.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate wrap-match 1.0.7 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate wrap-match 1.0.7 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate wrap-match 1.0.7 [INFO] finished tweaking crates.io crate wrap-match 1.0.7 [INFO] tweaked toml for crates.io crate wrap-match 1.0.7 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 45 packages [INFO] [stderr] Adding nu-ansi-term v0.46.0 (latest: v0.50.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded wrap-match-impl v1.0.7 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 45611ba7c27384bd4481ab00477ba67ef2a8b60dfd6ba5c60ebd01c289f7301e [INFO] running `Command { std: "docker" "start" "-a" "45611ba7c27384bd4481ab00477ba67ef2a8b60dfd6ba5c60ebd01c289f7301e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "45611ba7c27384bd4481ab00477ba67ef2a8b60dfd6ba5c60ebd01c289f7301e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45611ba7c27384bd4481ab00477ba67ef2a8b60dfd6ba5c60ebd01c289f7301e", kill_on_drop: false }` [INFO] [stdout] 45611ba7c27384bd4481ab00477ba67ef2a8b60dfd6ba5c60ebd01c289f7301e [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8cfd8ce3269a01eeb31fdfb93220f48ce9eb335983bfd2a4272e0549b153b808 [INFO] running `Command { std: "docker" "start" "-a" "8cfd8ce3269a01eeb31fdfb93220f48ce9eb335983bfd2a4272e0549b153b808", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling prettyplease v0.2.17 [INFO] [stderr] Checking winnow v0.6.5 [INFO] [stderr] Compiling trybuild v1.0.91 [INFO] [stderr] Checking overload v0.1.1 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking thread_local v1.1.8 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Checking pollster v0.3.0 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking nu-ansi-term v0.46.0 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Checking serde_spanned v0.6.5 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking toml_edit v0.22.9 [INFO] [stderr] Compiling wrap-match-impl v1.0.7 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Checking toml v0.8.12 [INFO] [stderr] Checking wrap-match v1.0.7 (/opt/rustwide/workdir) [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.48s [INFO] running `Command { std: "docker" "inspect" "8cfd8ce3269a01eeb31fdfb93220f48ce9eb335983bfd2a4272e0549b153b808", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8cfd8ce3269a01eeb31fdfb93220f48ce9eb335983bfd2a4272e0549b153b808", kill_on_drop: false }` [INFO] [stdout] 8cfd8ce3269a01eeb31fdfb93220f48ce9eb335983bfd2a4272e0549b153b808 [INFO] checking wrap-match-1.0.7 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate wrap-match 1.0.7 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate wrap-match 1.0.7 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate wrap-match 1.0.7 [INFO] finished tweaking crates.io crate wrap-match 1.0.7 [INFO] tweaked toml for crates.io crate wrap-match 1.0.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d34814d5b7819a0bbdacc60904cc9c9cda600cb3de851979df0cff26069bc06a [INFO] running `Command { std: "docker" "start" "-a" "d34814d5b7819a0bbdacc60904cc9c9cda600cb3de851979df0cff26069bc06a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d34814d5b7819a0bbdacc60904cc9c9cda600cb3de851979df0cff26069bc06a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d34814d5b7819a0bbdacc60904cc9c9cda600cb3de851979df0cff26069bc06a", kill_on_drop: false }` [INFO] [stdout] d34814d5b7819a0bbdacc60904cc9c9cda600cb3de851979df0cff26069bc06a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9890f235bb71822b90249f406284079d3bddffcd1fd0e31063ce9d38d1ec22c7 [INFO] running `Command { std: "docker" "start" "-a" "9890f235bb71822b90249f406284079d3bddffcd1fd0e31063ce9d38d1ec22c7", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling prettyplease v0.2.17 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking winnow v0.6.5 [INFO] [stderr] Checking overload v0.1.1 [INFO] [stderr] Compiling trybuild v1.0.91 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking thread_local v1.1.8 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking pollster v0.3.0 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking nu-ansi-term v0.46.0 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Checking indexmap v2.2.6 [INFO] [stderr] Checking serde_spanned v0.6.5 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking toml_edit v0.22.9 [INFO] [stderr] Checking toml v0.8.12 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling wrap-match-impl v1.0.7 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking wrap-match v1.0.7 (/opt/rustwide/workdir) [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | Err(CustomError::Error)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 47 | Err::(CustomError::Error)?; [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | Err(CustomError::Error)?; // this will never be triggered, just to ensure it compiles fine [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 54 | Err::(CustomError::Error)?; // this will never be triggered, just to ensure it compiles fine [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:84:9 [INFO] [stdout] | [INFO] [stdout] 84 | Err(CustomError::Error)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 84 | Err::(CustomError::Error)?; [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | Err(CustomError::Error)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 90 | Err::(CustomError::Error)?; [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:99:5 [INFO] [stdout] | [INFO] [stdout] 99 | Err(CustomError::Error)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 99 | Err::(CustomError::Error)?; [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:110:5 [INFO] [stdout] | [INFO] [stdout] 110 | Err(CustomError::Error)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 110 | Err::(CustomError::Error)?; [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:116:5 [INFO] [stdout] | [INFO] [stdout] 116 | Err(CustomError::Error)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 116 | Err::(CustomError::Error)?; [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/basic.rs:122:5 [INFO] [stdout] | [INFO] [stdout] 122 | Err(CustomError::Error)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 122 | Err::(CustomError::Error)?; [INFO] [stdout] | ++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 8 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `wrap-match` (test "basic") due to 9 previous errors [INFO] running `Command { std: "docker" "inspect" "9890f235bb71822b90249f406284079d3bddffcd1fd0e31063ce9d38d1ec22c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9890f235bb71822b90249f406284079d3bddffcd1fd0e31063ce9d38d1ec22c7", kill_on_drop: false }` [INFO] [stdout] 9890f235bb71822b90249f406284079d3bddffcd1fd0e31063ce9d38d1ec22c7