[INFO] fetching crate fat_type 0.3.0...
[INFO] testing fat_type-0.3.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate fat_type 0.3.0 into /workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fat_type 0.3.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c7b9aca61ab884c1c7eb146fe59521afb8e51432c4f658330617f0a66b0ffa5
[INFO] running `Command { std: "docker" "start" "-a" "1c7b9aca61ab884c1c7eb146fe59521afb8e51432c4f658330617f0a66b0ffa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c7b9aca61ab884c1c7eb146fe59521afb8e51432c4f658330617f0a66b0ffa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7b9aca61ab884c1c7eb146fe59521afb8e51432c4f658330617f0a66b0ffa5", kill_on_drop: false }`
[INFO] [stdout] 1c7b9aca61ab884c1c7eb146fe59521afb8e51432c4f658330617f0a66b0ffa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aaa8d1be7ae9e115a513fb919bd8d6bb6b13f20edddda425b7deb34e6580f4c2
[INFO] running `Command { std: "docker" "start" "-a" "aaa8d1be7ae9e115a513fb919bd8d6bb6b13f20edddda425b7deb34e6580f4c2", 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/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ptr/metadata.rs:115:1
[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" "aaa8d1be7ae9e115a513fb919bd8d6bb6b13f20edddda425b7deb34e6580f4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa8d1be7ae9e115a513fb919bd8d6bb6b13f20edddda425b7deb34e6580f4c2", kill_on_drop: false }`
[INFO] [stdout] aaa8d1be7ae9e115a513fb919bd8d6bb6b13f20edddda425b7deb34e6580f4c2