[INFO] cloning repository https://github.com/Jeyenore26/PortSniffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jeyenore26/PortSniffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d28b6a0393cc2d842d054e2a8d4f7128149b1643
[INFO] checking Jeyenore26/PortSniffer/d28b6a0393cc2d842d054e2a8d4f7128149b1643 against try#96ad39d809ea5a132d223acdaa01b9a8d3a26348 for pr-129346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jeyenore26/PortSniffer on toolchain 96ad39d809ea5a132d223acdaa01b9a8d3a26348
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] finished tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] tweaked toml for git repo https://github.com/Jeyenore26/PortSniffer written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jeyenore26/PortSniffer 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" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Jeyenore26/PortSniffer/d28b6a0393cc2d842d054e2a8d4f7128149b1643 against try#96ad39d809ea5a132d223acdaa01b9a8d3a26348 for pr-129346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jeyenore26/PortSniffer on toolchain 96ad39d809ea5a132d223acdaa01b9a8d3a26348
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] finished tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] tweaked toml for git repo https://github.com/Jeyenore26/PortSniffer written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jeyenore26/PortSniffer 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" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 609cc20581cf1487104e06992ac0964d5cbb7e1c277a23d23bf538bf85d37520
[INFO] running `Command { std: "docker" "start" "-a" "609cc20581cf1487104e06992ac0964d5cbb7e1c277a23d23bf538bf85d37520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "609cc20581cf1487104e06992ac0964d5cbb7e1c277a23d23bf538bf85d37520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "609cc20581cf1487104e06992ac0964d5cbb7e1c277a23d23bf538bf85d37520", kill_on_drop: false }`
[INFO] [stdout] 609cc20581cf1487104e06992ac0964d5cbb7e1c277a23d23bf538bf85d37520
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b513600712005143b53ba1a365569eb6a119b3089e73c17080454df965622a4b
[INFO] running `Command { std: "docker" "start" "-a" "b513600712005143b53ba1a365569eb6a119b3089e73c17080454df965622a4b", kill_on_drop: false }`
[INFO] [stderr]     Checking port_Sniffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 tx.send(port);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let _ = tx.send(port);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 tx.send(port);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let _ = tx.send(port);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "b513600712005143b53ba1a365569eb6a119b3089e73c17080454df965622a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b513600712005143b53ba1a365569eb6a119b3089e73c17080454df965622a4b", kill_on_drop: false }`
[INFO] [stdout] b513600712005143b53ba1a365569eb6a119b3089e73c17080454df965622a4b