[INFO] fetching crate cool_asserts 1.0.2...
[INFO] checking cool_asserts-1.0.2 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate cool_asserts 1.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cool_asserts 1.0.2 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 681f5a637db511050132035fa2ccd4f09b678dac22a6937f6e1a7cf1b476ba0e
[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" "681f5a637db511050132035fa2ccd4f09b678dac22a6937f6e1a7cf1b476ba0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "681f5a637db511050132035fa2ccd4f09b678dac22a6937f6e1a7cf1b476ba0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "681f5a637db511050132035fa2ccd4f09b678dac22a6937f6e1a7cf1b476ba0e", kill_on_drop: false }`
[INFO] [stdout] 681f5a637db511050132035fa2ccd4f09b678dac22a6937f6e1a7cf1b476ba0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d2f6c7dea2b82632bc6155f034d491d724fa7017a428bbe23dc3feac0fad7af
[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" "4d2f6c7dea2b82632bc6155f034d491d724fa7017a428bbe23dc3feac0fad7af", 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4d2f6c7dea2b82632bc6155f034d491d724fa7017a428bbe23dc3feac0fad7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d2f6c7dea2b82632bc6155f034d491d724fa7017a428bbe23dc3feac0fad7af", kill_on_drop: false }`
[INFO] [stdout] 4d2f6c7dea2b82632bc6155f034d491d724fa7017a428bbe23dc3feac0fad7af