[INFO] fetching crate cool_asserts 1.0.2...
[INFO] checking cool_asserts-1.0.2 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate cool_asserts 1.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cool_asserts 1.0.2 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cool_asserts 1.0.2
[INFO] finished tweaking crates.io crate cool_asserts 1.0.2
[INFO] tweaked toml for crates.io crate cool_asserts 1.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f2ea0263bc083f04759107d7d1950334a7e66f3460fccd929da62232087167f7
[INFO] running `Command { std: "docker" "start" "-a" "f2ea0263bc083f04759107d7d1950334a7e66f3460fccd929da62232087167f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2ea0263bc083f04759107d7d1950334a7e66f3460fccd929da62232087167f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2ea0263bc083f04759107d7d1950334a7e66f3460fccd929da62232087167f7", kill_on_drop: false }`
[INFO] [stdout] f2ea0263bc083f04759107d7d1950334a7e66f3460fccd929da62232087167f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdf603e5c0d52be6cd194ba0a960c7b55c283271a0ebb746812e3912a035854d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fdf603e5c0d52be6cd194ba0a960c7b55c283271a0ebb746812e3912a035854d", kill_on_drop: false }`
[INFO] [stderr]     Checking cool_asserts v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lib.rs:347:49
[INFO] [stdout]     |
[INFO] [stdout] 347 |             assert_matches!(TEST_VALUE, None => {panic!("Custom Panic")}),
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lib.rs:359:65
[INFO] [stdout]     |
[INFO] [stdout] 359 |             assert_matches!(TEST_VALUE, Some(TestStruct{..}) => {panic!("Custom Panic")}),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "fdf603e5c0d52be6cd194ba0a960c7b55c283271a0ebb746812e3912a035854d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf603e5c0d52be6cd194ba0a960c7b55c283271a0ebb746812e3912a035854d", kill_on_drop: false }`
[INFO] [stdout] fdf603e5c0d52be6cd194ba0a960c7b55c283271a0ebb746812e3912a035854d
