[INFO] fetching crate rust_observable 0.2.1... [INFO] checking rust_observable-0.2.1 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1 [INFO] extracting crate rust_observable 0.2.1 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate rust_observable 0.2.1 [INFO] finished tweaking crates.io crate rust_observable 0.2.1 [INFO] tweaked toml for crates.io crate rust_observable 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rust_observable 0.2.1 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 5 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6d41ecd58c28e9de1d986792e11a14d6f3d706666d542d718c6af20ca85441ea [INFO] running `Command { std: "docker" "start" "-a" "6d41ecd58c28e9de1d986792e11a14d6f3d706666d542d718c6af20ca85441ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6d41ecd58c28e9de1d986792e11a14d6f3d706666d542d718c6af20ca85441ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d41ecd58c28e9de1d986792e11a14d6f3d706666d542d718c6af20ca85441ea", kill_on_drop: false }` [INFO] [stdout] 6d41ecd58c28e9de1d986792e11a14d6f3d706666d542d718c6af20ca85441ea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a9ce488db2ca02e771ac48a5a8d52b3b8152d155995d42d1109ffb36efb0831 [INFO] running `Command { std: "docker" "start" "-a" "4a9ce488db2ca02e771ac48a5a8d52b3b8152d155995d42d1109ffb36efb0831", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling rust_observable_literal v0.1.0 [INFO] [stderr] Checking rust_observable v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:212:51 [INFO] [stdout] | [INFO] [stdout] 212 | type BoxedSubscriberFunction = Arc<(dyn SubscriberFunction)>; [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 212 - type BoxedSubscriberFunction = Arc<(dyn SubscriberFunction)>; [INFO] [stdout] 212 + type BoxedSubscriberFunction = Arc>; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:212:51 [INFO] [stdout] | [INFO] [stdout] 212 | type BoxedSubscriberFunction = Arc<(dyn SubscriberFunction)>; [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 212 - type BoxedSubscriberFunction = Arc<(dyn SubscriberFunction)>; [INFO] [stdout] 212 + type BoxedSubscriberFunction = Arc>; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.99s [INFO] running `Command { std: "docker" "inspect" "4a9ce488db2ca02e771ac48a5a8d52b3b8152d155995d42d1109ffb36efb0831", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a9ce488db2ca02e771ac48a5a8d52b3b8152d155995d42d1109ffb36efb0831", kill_on_drop: false }` [INFO] [stdout] 4a9ce488db2ca02e771ac48a5a8d52b3b8152d155995d42d1109ffb36efb0831