[INFO] fetching crate maplit 1.0.2...
[INFO] checking maplit-1.0.2 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate maplit 1.0.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate maplit 1.0.2 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maplit 1.0.2
[INFO] finished tweaking crates.io crate maplit 1.0.2
[INFO] tweaked toml for crates.io crate maplit 1.0.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 822f4d86e2b7238996d5d75e6dc6346b9d34ce273d25d0eeffe196d48256e4a2
[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" "822f4d86e2b7238996d5d75e6dc6346b9d34ce273d25d0eeffe196d48256e4a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "822f4d86e2b7238996d5d75e6dc6346b9d34ce273d25d0eeffe196d48256e4a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "822f4d86e2b7238996d5d75e6dc6346b9d34ce273d25d0eeffe196d48256e4a2", kill_on_drop: false }`
[INFO] [stdout] 822f4d86e2b7238996d5d75e6dc6346b9d34ce273d25d0eeffe196d48256e4a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 89a3b8a7a1b651960f54625bb9d822cf4c681819b21f3ad18b211d3cb87aebee
[INFO] running `Command { std: "docker" "start" "-a" "89a3b8a7a1b651960f54625bb9d822cf4c681819b21f3ad18b211d3cb87aebee", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking maplit v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> tests/tests.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     hashmap!{{1 + 2} => 1, (1 + 3) => {0 + 2}};
[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 method argument
[INFO] [stdout]   --> tests/tests.rs:13:39
[INFO] [stdout]    |
[INFO] [stdout] 13 |     hashmap!{{1 + 2} => 1, (1 + 3) => {0 + 2}};
[INFO] [stdout]    |                                       ^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> tests/tests.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |     hashset!{{1 + 1}, (2 + 1)};
[INFO] [stdout]    |              ^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "89a3b8a7a1b651960f54625bb9d822cf4c681819b21f3ad18b211d3cb87aebee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89a3b8a7a1b651960f54625bb9d822cf4c681819b21f3ad18b211d3cb87aebee", kill_on_drop: false }`
[INFO] [stdout] 89a3b8a7a1b651960f54625bb9d822cf4c681819b21f3ad18b211d3cb87aebee