[INFO] fetching crate tracing-panic 0.1.1...
[INFO] checking tracing-panic-0.1.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate tracing-panic 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tracing-panic 0.1.1 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 tracing-panic 0.1.1
[INFO] finished tweaking crates.io crate tracing-panic 0.1.1
[INFO] tweaked toml for crates.io crate tracing-panic 0.1.1 written to /workspace/builds/worker-2-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 24 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a2fb14bdb661003af9f190b7f5e02891b522730fc4d14759f009748bbea88de8
[INFO] running `Command { std: "docker" "start" "-a" "a2fb14bdb661003af9f190b7f5e02891b522730fc4d14759f009748bbea88de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2fb14bdb661003af9f190b7f5e02891b522730fc4d14759f009748bbea88de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2fb14bdb661003af9f190b7f5e02891b522730fc4d14759f009748bbea88de8", kill_on_drop: false }`
[INFO] [stdout] a2fb14bdb661003af9f190b7f5e02891b522730fc4d14759f009748bbea88de8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b9fbb99f521216ad11ae9b0bc4e47d7c11ecf40967a1fb5945f181f4fc6ba3e5
[INFO] running `Command { std: "docker" "start" "-a" "b9fbb99f521216ad11ae9b0bc4e47d7c11ecf40967a1fb5945f181f4fc6ba3e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-panic v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `Command { std: "docker" "inspect" "b9fbb99f521216ad11ae9b0bc4e47d7c11ecf40967a1fb5945f181f4fc6ba3e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9fbb99f521216ad11ae9b0bc4e47d7c11ecf40967a1fb5945f181f4fc6ba3e5", kill_on_drop: false }`
[INFO] [stdout] b9fbb99f521216ad11ae9b0bc4e47d7c11ecf40967a1fb5945f181f4fc6ba3e5
[INFO] checking tracing-panic-0.1.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate tracing-panic 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tracing-panic 0.1.1 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 tracing-panic 0.1.1
[INFO] finished tweaking crates.io crate tracing-panic 0.1.1
[INFO] tweaked toml for crates.io crate tracing-panic 0.1.1 written to /workspace/builds/worker-2-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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 463abd6b2a21f592cead40dcad3499e274bd911a4fabf7b5acc9a0a2f3ddf82a
[INFO] running `Command { std: "docker" "start" "-a" "463abd6b2a21f592cead40dcad3499e274bd911a4fabf7b5acc9a0a2f3ddf82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "463abd6b2a21f592cead40dcad3499e274bd911a4fabf7b5acc9a0a2f3ddf82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463abd6b2a21f592cead40dcad3499e274bd911a4fabf7b5acc9a0a2f3ddf82a", kill_on_drop: false }`
[INFO] [stdout] 463abd6b2a21f592cead40dcad3499e274bd911a4fabf7b5acc9a0a2f3ddf82a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7d4deb2adf2bc13e4a21c2508dfd90cf40d2b1d307d786365c2c9dba933bea1e
[INFO] running `Command { std: "docker" "start" "-a" "7d4deb2adf2bc13e4a21c2508dfd90cf40d2b1d307d786365c2c9dba933bea1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-panic v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed for `Result<_, Box<dyn Any + Send>>`
[INFO] [stdout]   --> src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |           let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]    |  _____________^___-
[INFO] [stdout] 86 | |             std::panic::set_hook(Box::new(panic_hook));
[INFO] [stdout] 87 | |             panic!("This is a static panic message");
[INFO] [stdout] 88 | |         });
[INFO] [stdout]    | |__________- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this pattern a type, where the type for type parameter `R` is specified
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _: Result<_, Box<dyn Any + Send>> = std::panic::catch_unwind(|| {
[INFO] [stdout]    |              ++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Result<_, Box<dyn Any + Send>>`
[INFO] [stdout]    --> src/lib.rs:99:13
[INFO] [stdout]     |
[INFO] [stdout] 99  |           let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]     |  _____________^___-
[INFO] [stdout] 100 | |             std::panic::set_hook(Box::new(panic_hook));
[INFO] [stdout] 101 | |             panic!("This is an {} panic message", "interpolated");
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this pattern a type, where the type for type parameter `R` is specified
[INFO] [stdout]     |
[INFO] [stdout] 99  |         let _: Result<_, Box<dyn Any + Send>> = std::panic::catch_unwind(|| {
[INFO] [stdout]     |              ++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `tracing-panic` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "7d4deb2adf2bc13e4a21c2508dfd90cf40d2b1d307d786365c2c9dba933bea1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4deb2adf2bc13e4a21c2508dfd90cf40d2b1d307d786365c2c9dba933bea1e", kill_on_drop: false }`
[INFO] [stdout] 7d4deb2adf2bc13e4a21c2508dfd90cf40d2b1d307d786365c2c9dba933bea1e