[INFO] fetching crate maplit 1.0.2...
[INFO] checking maplit-1.0.2 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate maplit 1.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate maplit 1.0.2 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4180a4db652e81fc971befeebd6c3525938887a33ff0e2da6342d150e55ba50d
[INFO] running `Command { std: "docker" "start" "-a" "4180a4db652e81fc971befeebd6c3525938887a33ff0e2da6342d150e55ba50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4180a4db652e81fc971befeebd6c3525938887a33ff0e2da6342d150e55ba50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4180a4db652e81fc971befeebd6c3525938887a33ff0e2da6342d150e55ba50d", kill_on_drop: false }`
[INFO] [stdout] 4180a4db652e81fc971befeebd6c3525938887a33ff0e2da6342d150e55ba50d
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de221587b39f3a650daa18f5458e070768412fddda5dfecbaad61d25d67db8cf
[INFO] running `Command { std: "docker" "start" "-a" "de221587b39f3a650daa18f5458e070768412fddda5dfecbaad61d25d67db8cf", kill_on_drop: false }`
[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]    |              ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 13 -     hashmap!{{1 + 2} => 1, (1 + 3) => {0 + 2}};
[INFO] [stdout] 13 +     hashmap!{1 + 2 => 1, (1 + 3) => {0 + 2}};
[INFO] [stdout]    | 
[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]    |                                       ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 13 -     hashmap!{{1 + 2} => 1, (1 + 3) => {0 + 2}};
[INFO] [stdout] 13 +     hashmap!{{1 + 2} => 1, (1 + 3) => 0 + 2};
[INFO] [stdout]    | 
[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]    |              ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 29 -     hashset!{{1 + 1}, (2 + 1)};
[INFO] [stdout] 29 +     hashset!{1 + 1, (2 + 1)};
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "de221587b39f3a650daa18f5458e070768412fddda5dfecbaad61d25d67db8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de221587b39f3a650daa18f5458e070768412fddda5dfecbaad61d25d67db8cf", kill_on_drop: false }`
[INFO] [stdout] de221587b39f3a650daa18f5458e070768412fddda5dfecbaad61d25d67db8cf