[INFO] fetching crate compiler_base_macros 0.0.1...
[INFO] checking compiler_base_macros-0.0.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate compiler_base_macros 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate compiler_base_macros 0.0.1 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 compiler_base_macros 0.0.1
[INFO] finished tweaking crates.io crate compiler_base_macros 0.0.1
[INFO] tweaked toml for crates.io crate compiler_base_macros 0.0.1 written to /workspace/builds/worker-1-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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0a8e1c3c27657e27a19b767864ce42dd7babea2d8040f75ee234305a1e556255
[INFO] running `Command { std: "docker" "start" "-a" "0a8e1c3c27657e27a19b767864ce42dd7babea2d8040f75ee234305a1e556255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a8e1c3c27657e27a19b767864ce42dd7babea2d8040f75ee234305a1e556255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8e1c3c27657e27a19b767864ce42dd7babea2d8040f75ee234305a1e556255", kill_on_drop: false }`
[INFO] [stdout] 0a8e1c3c27657e27a19b767864ce42dd7babea2d8040f75ee234305a1e556255
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2bda2f2b6f3c974f9107133aa4a9c02b01c702144c0122be33c251232b01345c
[INFO] running `Command { std: "docker" "start" "-a" "2bda2f2b6f3c974f9107133aa4a9c02b01c702144c0122be33c251232b01345c", kill_on_drop: false }`
[INFO] [stderr]     Checking compiler_base_macros v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "2bda2f2b6f3c974f9107133aa4a9c02b01c702144c0122be33c251232b01345c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bda2f2b6f3c974f9107133aa4a9c02b01c702144c0122be33c251232b01345c", kill_on_drop: false }`
[INFO] [stdout] 2bda2f2b6f3c974f9107133aa4a9c02b01c702144c0122be33c251232b01345c
[INFO] checking compiler_base_macros-0.0.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate compiler_base_macros 0.0.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate compiler_base_macros 0.0.1 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 compiler_base_macros 0.0.1
[INFO] finished tweaking crates.io crate compiler_base_macros 0.0.1
[INFO] tweaked toml for crates.io crate compiler_base_macros 0.0.1 written to /workspace/builds/worker-1-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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 03343e3263e3865885d8cff2248da085088ff77cbb1cf85beac82eca8343c63f
[INFO] running `Command { std: "docker" "start" "-a" "03343e3263e3865885d8cff2248da085088ff77cbb1cf85beac82eca8343c63f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03343e3263e3865885d8cff2248da085088ff77cbb1cf85beac82eca8343c63f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03343e3263e3865885d8cff2248da085088ff77cbb1cf85beac82eca8343c63f", kill_on_drop: false }`
[INFO] [stdout] 03343e3263e3865885d8cff2248da085088ff77cbb1cf85beac82eca8343c63f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2d5f842c79150583f1a75ef1522d43aecf736e0c907555c62d06dc0274e97e64
[INFO] running `Command { std: "docker" "start" "-a" "2d5f842c79150583f1a75ef1522d43aecf736e0c907555c62d06dc0274e97e64", kill_on_drop: false }`
[INFO] [stderr]     Checking compiler_base_macros v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed for `Result<_, Box<dyn Any + Send>>`
[INFO] [stdout]  --> src/tests.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |           let result = std::panic::catch_unwind(|| {
[INFO] [stdout]   |  _____________^^^^^^___-
[INFO] [stdout] 8 | |             bug!();
[INFO] [stdout] 9 | |         });
[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] 7 |         let result: Result<_, Box<dyn Any + Send>> = std::panic::catch_unwind(|| {
[INFO] [stdout]   |                   ++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compiler_base_macros` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2d5f842c79150583f1a75ef1522d43aecf736e0c907555c62d06dc0274e97e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d5f842c79150583f1a75ef1522d43aecf736e0c907555c62d06dc0274e97e64", kill_on_drop: false }`
[INFO] [stdout] 2d5f842c79150583f1a75ef1522d43aecf736e0c907555c62d06dc0274e97e64