[INFO] cloning repository https://github.com/abzh423/rust-3 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abzh423/rust-3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabzh423%2Frust-3", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabzh423%2Frust-3'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f1803f948143d1043b88aaf7560bf09ff4ca6191 [INFO] checking abzh423/rust-3 against master#83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5 for pr-128425 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabzh423%2Frust-3" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/abzh423/rust-3 on toolchain 83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/abzh423/rust-3 [INFO] finished tweaking git repo https://github.com/abzh423/rust-3 [INFO] tweaked toml for git repo https://github.com/abzh423/rust-3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/abzh423/rust-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" "+83dcdb3a5dad0ed1e3e1fadc848d3f7727b41aa5" "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 [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking abzh423/rust-3 against try#063c08dd8db6ff113bb809c130456f1781abe72c for pr-128425 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabzh423%2Frust-3" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/abzh423/rust-3 on toolchain 063c08dd8db6ff113bb809c130456f1781abe72c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+063c08dd8db6ff113bb809c130456f1781abe72c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/abzh423/rust-3 [INFO] finished tweaking git repo https://github.com/abzh423/rust-3 [INFO] tweaked toml for git repo https://github.com/abzh423/rust-3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/abzh423/rust-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" "+063c08dd8db6ff113bb809c130456f1781abe72c" "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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+063c08dd8db6ff113bb809c130456f1781abe72c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a133ab5f73d638cfbea6fbef5d3578aa1ce86ccf9180f45fd79a8c1e7701442d [INFO] running `Command { std: "docker" "start" "-a" "a133ab5f73d638cfbea6fbef5d3578aa1ce86ccf9180f45fd79a8c1e7701442d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a133ab5f73d638cfbea6fbef5d3578aa1ce86ccf9180f45fd79a8c1e7701442d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a133ab5f73d638cfbea6fbef5d3578aa1ce86ccf9180f45fd79a8c1e7701442d", kill_on_drop: false }` [INFO] [stdout] a133ab5f73d638cfbea6fbef5d3578aa1ce86ccf9180f45fd79a8c1e7701442d [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+063c08dd8db6ff113bb809c130456f1781abe72c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bc90e5d28c67a63d38528c82d04c397b67f61c65f349acbb616649fa18f30bff [INFO] running `Command { std: "docker" "start" "-a" "bc90e5d28c67a63d38528c82d04c397b67f61c65f349acbb616649fa18f30bff", kill_on_drop: false }` [INFO] [stderr] Checking untitled v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `io_error` [INFO] [stdout] --> src/main.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let io_error = io::Error::new(io::ErrorKind::Other, "timed out"); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_io_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `number` [INFO] [stdout] --> src/main.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | let number = Some(7); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `emoticon` [INFO] [stdout] --> src/main.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let emoticon: Option = None; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_emoticon` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `io_error` [INFO] [stdout] --> src/main.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let io_error = io::Error::new(io::ErrorKind::Other, "timed out"); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_io_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `number` [INFO] [stdout] --> src/main.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | let number = Some(7); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `emoticon` [INFO] [stdout] --> src/main.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let emoticon: Option = None; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_emoticon` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `pirate_share` is never used [INFO] [stdout] --> src/main.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | fn pirate_share(total: u64, crew_size: usize) -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_error` is never used [INFO] [stdout] --> src/main.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | fn print_error(mut err: &dyn Error) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `GenericError` is never used [INFO] [stdout] --> src/main.rs:51:10 [INFO] [stdout] | [INFO] [stdout] 51 | type GenericError = Box; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `GenericResult` is never used [INFO] [stdout] --> src/main.rs:52:10 [INFO] [stdout] | [INFO] [stdout] 52 | type GenericResult = Result; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_numbers` is never used [INFO] [stdout] --> src/main.rs:54:8 [INFO] [stdout] | [INFO] [stdout] 54 | fn read_numbers(file: &mut dyn BufRead) -> GenericResult> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "bc90e5d28c67a63d38528c82d04c397b67f61c65f349acbb616649fa18f30bff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc90e5d28c67a63d38528c82d04c397b67f61c65f349acbb616649fa18f30bff", kill_on_drop: false }` [INFO] [stdout] bc90e5d28c67a63d38528c82d04c397b67f61c65f349acbb616649fa18f30bff