[INFO] fetching crate test_panic 0.3.0...
[INFO] checking test_panic-0.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate test_panic 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate test_panic 0.3.0 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 test_panic 0.3.0
[INFO] finished tweaking crates.io crate test_panic 0.3.0
[INFO] tweaked toml for crates.io crate test_panic 0.3.0 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] 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] 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] 4707f9c74a392105bd792b7aaedebad722b6b100a951fa35336909c826218b47
[INFO] running `Command { std: "docker" "start" "-a" "4707f9c74a392105bd792b7aaedebad722b6b100a951fa35336909c826218b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4707f9c74a392105bd792b7aaedebad722b6b100a951fa35336909c826218b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4707f9c74a392105bd792b7aaedebad722b6b100a951fa35336909c826218b47", kill_on_drop: false }`
[INFO] [stdout] 4707f9c74a392105bd792b7aaedebad722b6b100a951fa35336909c826218b47
[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] 98d8436ef5aae718964ae737b96fbbe510e43f5dc90c9e665b5254d77959088f
[INFO] running `Command { std: "docker" "start" "-a" "98d8436ef5aae718964ae737b96fbbe510e43f5dc90c9e665b5254d77959088f", kill_on_drop: false }`
[INFO] [stderr]     Checking test_panic v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "98d8436ef5aae718964ae737b96fbbe510e43f5dc90c9e665b5254d77959088f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98d8436ef5aae718964ae737b96fbbe510e43f5dc90c9e665b5254d77959088f", kill_on_drop: false }`
[INFO] [stdout] 98d8436ef5aae718964ae737b96fbbe510e43f5dc90c9e665b5254d77959088f
[INFO] checking test_panic-0.3.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate test_panic 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate test_panic 0.3.0 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 test_panic 0.3.0
[INFO] finished tweaking crates.io crate test_panic 0.3.0
[INFO] tweaked toml for crates.io crate test_panic 0.3.0 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] 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] ec84572c9ca2e51551b412ed62c5b5958c5bdd0b87b0f8d648fab2c4d4bec1f8
[INFO] running `Command { std: "docker" "start" "-a" "ec84572c9ca2e51551b412ed62c5b5958c5bdd0b87b0f8d648fab2c4d4bec1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec84572c9ca2e51551b412ed62c5b5958c5bdd0b87b0f8d648fab2c4d4bec1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec84572c9ca2e51551b412ed62c5b5958c5bdd0b87b0f8d648fab2c4d4bec1f8", kill_on_drop: false }`
[INFO] [stdout] ec84572c9ca2e51551b412ed62c5b5958c5bdd0b87b0f8d648fab2c4d4bec1f8
[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] 4564cacbf0873e5dea897f08e41c21ddede3324297b0031ebe5abeab2b75a1da
[INFO] running `Command { std: "docker" "start" "-a" "4564cacbf0873e5dea897f08e41c21ddede3324297b0031ebe5abeab2b75a1da", kill_on_drop: false }`
[INFO] [stderr]     Checking test_panic v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed for `TestPanicResult<_>`
[INFO] [stdout]   --> tests/test_panic.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let result = test_panic(|| panic!());
[INFO] [stdout]    |         ^^^^^^   ----------------------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `result` an explicit type, where the type for type parameter `R` is specified
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let result: TestPanicResult<_> = test_panic(|| panic!());
[INFO] [stdout]    |               ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `TestPanicResult<_>`
[INFO] [stdout]   --> tests/test_panic.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let result = test_panic(|| panic!("ng"));
[INFO] [stdout]    |         ^^^^^^   --------------------------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `result` an explicit type, where the type for type parameter `R` is specified
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let result: TestPanicResult<_> = test_panic(|| panic!("ng"));
[INFO] [stdout]    |               ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `TestPanicResult<_>`
[INFO] [stdout]   --> tests/test_panic.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let result = test_panic(|| panic!("{}", "ng"));
[INFO] [stdout]    |         ^^^^^^   --------------------------------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `result` an explicit type, where the type for type parameter `R` is specified
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let result: TestPanicResult<_> = test_panic(|| panic!("{}", "ng"));
[INFO] [stdout]    |               ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `TestPanicResult<_>`
[INFO] [stdout]   --> tests/test_panic.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let result = test_panic(|| panic_any(false));
[INFO] [stdout]    |         ^^^^^^   ------------------------------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `result` an explicit type, where the type for type parameter `R` is specified
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let result: TestPanicResult<_> = test_panic(|| panic_any(false));
[INFO] [stdout]    |               ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `test_panic` (test "test_panic") due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "4564cacbf0873e5dea897f08e41c21ddede3324297b0031ebe5abeab2b75a1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4564cacbf0873e5dea897f08e41c21ddede3324297b0031ebe5abeab2b75a1da", kill_on_drop: false }`
[INFO] [stdout] 4564cacbf0873e5dea897f08e41c21ddede3324297b0031ebe5abeab2b75a1da