[INFO] cloning repository https://github.com/LyleCoguill/rise_in_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LyleCoguill/rise_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyleCoguill%2Frise_in_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyleCoguill%2Frise_in_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3963fce4cd66a4514495b435b123199c0776437e [INFO] checking LyleCoguill/rise_in_rust against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyleCoguill%2Frise_in_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LyleCoguill/rise_in_rust on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LyleCoguill/rise_in_rust [INFO] finished tweaking git repo https://github.com/LyleCoguill/rise_in_rust [INFO] tweaked toml for git repo https://github.com/LyleCoguill/rise_in_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LyleCoguill/rise_in_rust 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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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 LyleCoguill/rise_in_rust against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyleCoguill%2Frise_in_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LyleCoguill/rise_in_rust on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LyleCoguill/rise_in_rust [INFO] finished tweaking git repo https://github.com/LyleCoguill/rise_in_rust [INFO] tweaked toml for git repo https://github.com/LyleCoguill/rise_in_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LyleCoguill/rise_in_rust 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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 LyleCoguill/rise_in_rust against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyleCoguill%2Frise_in_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LyleCoguill/rise_in_rust on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LyleCoguill/rise_in_rust [INFO] finished tweaking git repo https://github.com/LyleCoguill/rise_in_rust [INFO] tweaked toml for git repo https://github.com/LyleCoguill/rise_in_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LyleCoguill/rise_in_rust 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 51f2dad2b665f1156ed32921012b74c943147982b01b847087a7acb81ad7206d [INFO] running `Command { std: "docker" "start" "-a" "51f2dad2b665f1156ed32921012b74c943147982b01b847087a7acb81ad7206d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51f2dad2b665f1156ed32921012b74c943147982b01b847087a7acb81ad7206d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51f2dad2b665f1156ed32921012b74c943147982b01b847087a7acb81ad7206d", kill_on_drop: false }` [INFO] [stdout] 51f2dad2b665f1156ed32921012b74c943147982b01b847087a7acb81ad7206d [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7da3ff04633b807131b9f595033cfe6cd197f7e46908c116ece5e2cd7ea6c52c [INFO] running `Command { std: "docker" "start" "-a" "7da3ff04633b807131b9f595033cfe6cd197f7e46908c116ece5e2cd7ea6c52c", kill_on_drop: false }` [INFO] [stderr] Checking rise_in_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `just_a_number` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | let just_a_number = 0; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_just_a_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pi` [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | let pi: f32 = 3.14159; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_pi` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first_element` [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | let first_element: &str = _days_of_the_week[0]; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_element` [INFO] [stdout] --> src/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | let last_element: &str = _days_of_the_week[_days_of_the_week.len() - 1]; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first_element_of_slice` [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | let first_element_of_slice: &str = slice[0]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_element_of_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | let name: &str = person.0; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `age` [INFO] [stdout] --> src/main.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 43 | let age: i32 = person.1; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_age` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unit_type` [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | let unit_type = (); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_type` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `num` is assigned to, but never used [INFO] [stdout] --> src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let mut num: i32 = 5; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_num` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `num` is never read [INFO] [stdout] --> src/main.rs:50:1 [INFO] [stdout] | [INFO] [stdout] 50 | num = 6; [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: unused variable: `just_a_number` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | let just_a_number = 0; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_just_a_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pi` [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | let pi: f32 = 3.14159; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_pi` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first_element` [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | let first_element: &str = _days_of_the_week[0]; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_element` [INFO] [stdout] --> src/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | let last_element: &str = _days_of_the_week[_days_of_the_week.len() - 1]; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first_element_of_slice` [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | let first_element_of_slice: &str = slice[0]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_element_of_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | let name: &str = person.0; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `age` [INFO] [stdout] --> src/main.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 43 | let age: i32 = person.1; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_age` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unit_type` [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | let unit_type = (); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_type` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `num` is assigned to, but never used [INFO] [stdout] --> src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let mut num: i32 = 5; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_num` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `num` is never read [INFO] [stdout] --> src/main.rs:50:1 [INFO] [stdout] | [INFO] [stdout] 50 | num = 6; [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: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] running `Command { std: "docker" "inspect" "7da3ff04633b807131b9f595033cfe6cd197f7e46908c116ece5e2cd7ea6c52c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7da3ff04633b807131b9f595033cfe6cd197f7e46908c116ece5e2cd7ea6c52c", kill_on_drop: false }` [INFO] [stdout] 7da3ff04633b807131b9f595033cfe6cd197f7e46908c116ece5e2cd7ea6c52c