[INFO] fetching crate fat_type 0.3.0...
[INFO] testing fat_type-0.3.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate fat_type 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate fat_type 0.3.0
[INFO] finished tweaking crates.io crate fat_type 0.3.0
[INFO] tweaked toml for crates.io crate fat_type 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fat_type 0.3.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f3fa72186bf6044f66d23162691637ce71583d526c3fe628b6c85c68db7df43
[INFO] running `Command { std: "docker" "start" "-a" "6f3fa72186bf6044f66d23162691637ce71583d526c3fe628b6c85c68db7df43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f3fa72186bf6044f66d23162691637ce71583d526c3fe628b6c85c68db7df43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3fa72186bf6044f66d23162691637ce71583d526c3fe628b6c85c68db7df43", kill_on_drop: false }`
[INFO] [stdout] 6f3fa72186bf6044f66d23162691637ce71583d526c3fe628b6c85c68db7df43
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 139af29a6f75b5566e9fef38f914b593b1729bb9f0ffb5f41e30bad36a622afd
[INFO] running `Command { std: "docker" "start" "-a" "139af29a6f75b5566e9fef38f914b593b1729bb9f0ffb5f41e30bad36a622afd", kill_on_drop: false }`
[INFO] [stderr]    Compiling fat_type v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:385:51
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let layout_ptr = ptr::from_raw_parts::<T>(ptr::null(), *metadata);
[INFO] [stdout]     |                          ------------------------ ^^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `null`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Thin`
[INFO] [stdout] note: required by a bound in `core::ptr::from_raw_parts`
[INFO] [stdout]    --> /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/core/src/ptr/metadata.rs:112:1
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let layout_ptr = ptr::from_raw_parts::<T>(ptr::null::<T>(), *metadata);
[INFO] [stdout]     |                                                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fat_type` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "139af29a6f75b5566e9fef38f914b593b1729bb9f0ffb5f41e30bad36a622afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "139af29a6f75b5566e9fef38f914b593b1729bb9f0ffb5f41e30bad36a622afd", kill_on_drop: false }`
[INFO] [stdout] 139af29a6f75b5566e9fef38f914b593b1729bb9f0ffb5f41e30bad36a622afd