[INFO] fetching crate flowfairy_api 0.2.2...
[INFO] checking flowfairy_api-0.2.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate flowfairy_api 0.2.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate flowfairy_api 0.2.2 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowfairy_api 0.2.2
[INFO] finished tweaking crates.io crate flowfairy_api 0.2.2
[INFO] tweaked toml for crates.io crate flowfairy_api 0.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7895f646237047c127702a5386b08b07ec23f8895ebbb65338f8d41e02e7b2e6
[INFO] running `Command { std: "docker" "start" "-a" "7895f646237047c127702a5386b08b07ec23f8895ebbb65338f8d41e02e7b2e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7895f646237047c127702a5386b08b07ec23f8895ebbb65338f8d41e02e7b2e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7895f646237047c127702a5386b08b07ec23f8895ebbb65338f8d41e02e7b2e6", kill_on_drop: false }`
[INFO] [stdout] 7895f646237047c127702a5386b08b07ec23f8895ebbb65338f8d41e02e7b2e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2ddc2b73f7c5f28958cd4dcd94ca4fa133309e18ca935c548def1bfabc613ad
[INFO] running `Command { std: "docker" "start" "-a" "c2ddc2b73f7c5f28958cd4dcd94ca4fa133309e18ca935c548def1bfabc613ad", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking flowfairy_api v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `byte_slice_trim_ascii` has been stable since 1.80.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(byte_slice_trim_ascii)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `byte_slice_trim_ascii` has been stable since 1.80.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(byte_slice_trim_ascii)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `events` is never read
[INFO] [stdout]    --> src/fcs.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let mut events = Vec::with_capacity(n_events);
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `events` is never read
[INFO] [stdout]    --> src/fcs.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let mut events = Vec::with_capacity(n_events);
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.87s
[INFO] running `Command { std: "docker" "inspect" "c2ddc2b73f7c5f28958cd4dcd94ca4fa133309e18ca935c548def1bfabc613ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ddc2b73f7c5f28958cd4dcd94ca4fa133309e18ca935c548def1bfabc613ad", kill_on_drop: false }`
[INFO] [stdout] c2ddc2b73f7c5f28958cd4dcd94ca4fa133309e18ca935c548def1bfabc613ad