[INFO] fetching crate freeswitch-esl-rs 0.3.1...
[INFO] checking freeswitch-esl-rs-0.3.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate freeswitch-esl-rs 0.3.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate freeswitch-esl-rs 0.3.1
[INFO] finished tweaking crates.io crate freeswitch-esl-rs 0.3.1
[INFO] tweaked toml for crates.io crate freeswitch-esl-rs 0.3.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate freeswitch-esl-rs 0.3.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate freeswitch-esl-rs 0.3.1 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ae63ab382d3f2cb66307c4253cb396aabc33f5fcaf444c55a31d15b4e68a2c9
[INFO] running `Command { std: "docker" "start" "-a" "8ae63ab382d3f2cb66307c4253cb396aabc33f5fcaf444c55a31d15b4e68a2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ae63ab382d3f2cb66307c4253cb396aabc33f5fcaf444c55a31d15b4e68a2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae63ab382d3f2cb66307c4253cb396aabc33f5fcaf444c55a31d15b4e68a2c9", kill_on_drop: false }`
[INFO] [stdout] 8ae63ab382d3f2cb66307c4253cb396aabc33f5fcaf444c55a31d15b4e68a2c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11aa900810bbaebb3a1f83695b305fd4818cd55273372a15558753405b4beec3
[INFO] running `Command { std: "docker" "start" "-a" "11aa900810bbaebb3a1f83695b305fd4818cd55273372a15558753405b4beec3", kill_on_drop: false }`
[INFO] [stderr]     Checking urldecode v0.1.1
[INFO] [stderr]     Checking queues v1.1.0
[INFO] [stderr]     Checking freeswitch-esl-rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> examples/dump-events.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     loop {
[INFO] [stdout] 34 | |         let event: Event = client.pull_event().unwrap();
[INFO] [stdout] 35 | |         let event_name = event.get("Event-Name").unwrap().to_string();
[INFO] [stdout] ...  |
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 66 |       
[INFO] [stdout] 67 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/dump-events.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut stream = TcpStream::connect(host)?;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> examples/stats-events.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     loop {
[INFO] [stdout] 34 | |         let event: Event = client.pull_event().unwrap();
[INFO] [stdout] 35 | |         let event_name = event.get("Event-Name").unwrap().to_string();
[INFO] [stdout] ...  |
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 66 |       
[INFO] [stdout] 67 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/stats-events.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut stream = TcpStream::connect(host)?;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "11aa900810bbaebb3a1f83695b305fd4818cd55273372a15558753405b4beec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11aa900810bbaebb3a1f83695b305fd4818cd55273372a15558753405b4beec3", kill_on_drop: false }`
[INFO] [stdout] 11aa900810bbaebb3a1f83695b305fd4818cd55273372a15558753405b4beec3