[INFO] fetching crate rapd 0.1.3...
[INFO] checking rapd-0.1.3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate rapd 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate rapd 0.1.3 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 rapd 0.1.3
[INFO] finished tweaking crates.io crate rapd 0.1.3
[INFO] tweaked toml for crates.io crate rapd 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate rapd 0.1.3 already has a lockfile, it will not be regenerated
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8bfaab85d4fc1e1d3e256f914edf5100ea5e76c5ddd2fdef53bb97546053ddd9
[INFO] running `Command { std: "docker" "start" "-a" "8bfaab85d4fc1e1d3e256f914edf5100ea5e76c5ddd2fdef53bb97546053ddd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bfaab85d4fc1e1d3e256f914edf5100ea5e76c5ddd2fdef53bb97546053ddd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bfaab85d4fc1e1d3e256f914edf5100ea5e76c5ddd2fdef53bb97546053ddd9", kill_on_drop: false }`
[INFO] [stdout] 8bfaab85d4fc1e1d3e256f914edf5100ea5e76c5ddd2fdef53bb97546053ddd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 429abd4672584b3ac92d133c2a953f88e726189cdc3facfa3bf64bd24c981dee
[INFO] running `Command { std: "docker" "start" "-a" "429abd4672584b3ac92d133c2a953f88e726189cdc3facfa3bf64bd24c981dee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling soloud-sys v1.0.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking xdg v2.4.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking ctrlc v3.2.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking soloud v1.0.1
[INFO] [stderr]     Checking rapd v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]  --> examples/get_music.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let len = stream.write(b"{\"request_type\":\"get_music\"}\n");
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> examples/get_music.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let len = reader.read_line(&mut line);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]  --> examples/rebuild_music_database.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let len = stream.write(b"{\"request_type\":\"rebuild_music_db\"}\n");
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> examples/rebuild_music_database.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let len = reader.read_line(&mut line);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]  --> examples/stop_player.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let len = stream.write(b"{\"request_type\":\"stop_player\" }\n");
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> examples/stop_player.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let len = reader.read_line(&mut line);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]  --> examples/play_audio_file.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let len = stream.write(b"{\"request_type\":\"play_audio_file\",\"audio_file_path\":\"test.ogg\", \"loop_audio\": true}\n");
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> examples/play_audio_file.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let len = reader.read_line(&mut line);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]  --> examples/get_playing.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let len = stream.write(b"{\"request_type\":\"current_file\", \"full_path\": false}\n");
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> examples/get_playing.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let len = reader.read_line(&mut line);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.09s
[INFO] running `Command { std: "docker" "inspect" "429abd4672584b3ac92d133c2a953f88e726189cdc3facfa3bf64bd24c981dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "429abd4672584b3ac92d133c2a953f88e726189cdc3facfa3bf64bd24c981dee", kill_on_drop: false }`
[INFO] [stdout] 429abd4672584b3ac92d133c2a953f88e726189cdc3facfa3bf64bd24c981dee