[INFO] cloning repository https://github.com/tonykuttai/Rust-Graph-Algorithms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tonykuttai/Rust-Graph-Algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonykuttai%2FRust-Graph-Algorithms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonykuttai%2FRust-Graph-Algorithms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c65c565c2c3ac4e7d5a9382f36e68c08a8f6d135 [INFO] checking tonykuttai/Rust-Graph-Algorithms against master#7bdae134cba57426d3c56b5de737a351762445e1 for pr-123794 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonykuttai%2FRust-Graph-Algorithms" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tonykuttai/Rust-Graph-Algorithms on toolchain 7bdae134cba57426d3c56b5de737a351762445e1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7bdae134cba57426d3c56b5de737a351762445e1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tonykuttai/Rust-Graph-Algorithms [INFO] finished tweaking git repo https://github.com/tonykuttai/Rust-Graph-Algorithms [INFO] tweaked toml for git repo https://github.com/tonykuttai/Rust-Graph-Algorithms written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tonykuttai/Rust-Graph-Algorithms 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" "+7bdae134cba57426d3c56b5de737a351762445e1" "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 tonykuttai/Rust-Graph-Algorithms against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonykuttai%2FRust-Graph-Algorithms" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tonykuttai/Rust-Graph-Algorithms on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tonykuttai/Rust-Graph-Algorithms [INFO] finished tweaking git repo https://github.com/tonykuttai/Rust-Graph-Algorithms [INFO] tweaked toml for git repo https://github.com/tonykuttai/Rust-Graph-Algorithms written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tonykuttai/Rust-Graph-Algorithms 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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5e779905f5471c5a72ff4a385099f306a050e4ecfd923204ecd2ba22f566fadf [INFO] running `Command { std: "docker" "start" "-a" "5e779905f5471c5a72ff4a385099f306a050e4ecfd923204ecd2ba22f566fadf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5e779905f5471c5a72ff4a385099f306a050e4ecfd923204ecd2ba22f566fadf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e779905f5471c5a72ff4a385099f306a050e4ecfd923204ecd2ba22f566fadf", kill_on_drop: false }` [INFO] [stdout] 5e779905f5471c5a72ff4a385099f306a050e4ecfd923204ecd2ba22f566fadf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 15a65141764327f80d0d530619d68d30efd873cd393134ea2a802fcbabc9adc7 [INFO] running `Command { std: "docker" "start" "-a" "15a65141764327f80d0d530619d68d30efd873cd393134ea2a802fcbabc9adc7", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.7 [INFO] [stderr] Checking libc v0.2.11 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking time v0.1.35 [INFO] [stderr] Checking tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/istree.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/istree.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/istree.rs:82:40 [INFO] [stdout] | [INFO] [stdout] 82 | let mut adj_list = (adj_list.lock().unwrap()); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 82 - let mut adj_list = (adj_list.lock().unwrap()); [INFO] [stdout] 82 + let mut adj_list = adj_list.lock().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/istree.rs:82:40 [INFO] [stdout] | [INFO] [stdout] 82 | let mut adj_list = (adj_list.lock().unwrap()); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 82 - let mut adj_list = (adj_list.lock().unwrap()); [INFO] [stdout] 82 + let mut adj_list = adj_list.lock().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 15 | let mut row: usize = nodes; [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: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 15 | let mut row: usize = nodes; [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: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | fn tree(mut adj_list: &mut Vec< Vec>,mut visited: &mut Vec,index:usize,flag:bool,nodes: usize)->bool{ [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:38:45 [INFO] [stdout] | [INFO] [stdout] 38 | fn tree(mut adj_list: &mut Vec< Vec>,mut visited: &mut Vec,index:usize,flag:bool,nodes: usize)->bool{ [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/istree.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | fn tree(mut adj_list: &mut Vec< Vec>,mut visited: &mut Vec,index:usize,flag:bool,nodes: usize)->bool{ [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:61:19 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn check_tree(mut adj_list_c: &mut Vec< Vec>,nodes: usize){ [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let mut adj_list= Arc::new(Mutex::new(adj_list)); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:38:45 [INFO] [stdout] | [INFO] [stdout] 38 | fn tree(mut adj_list: &mut Vec< Vec>,mut visited: &mut Vec,index:usize,flag:bool,nodes: usize)->bool{ [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/istree.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `row_del` should have an upper case name [INFO] [stdout] --> src/istree.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | static mut row_del: usize = 0; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `ROW_DEL` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:61:19 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn check_tree(mut adj_list_c: &mut Vec< Vec>,nodes: usize){ [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/istree.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let mut adj_list= Arc::new(Mutex::new(adj_list)); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `row_del` should have an upper case name [INFO] [stdout] --> src/istree.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | static mut row_del: usize = 0; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `ROW_DEL` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:27:63 [INFO] [stdout] | [INFO] [stdout] 27 | ... Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:34:63 [INFO] [stdout] | [INFO] [stdout] 34 | ... Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:27:63 [INFO] [stdout] | [INFO] [stdout] 27 | ... Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:34:63 [INFO] [stdout] | [INFO] [stdout] 34 | ... Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^ [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 1.26s [INFO] running `Command { std: "docker" "inspect" "15a65141764327f80d0d530619d68d30efd873cd393134ea2a802fcbabc9adc7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15a65141764327f80d0d530619d68d30efd873cd393134ea2a802fcbabc9adc7", kill_on_drop: false }` [INFO] [stdout] 15a65141764327f80d0d530619d68d30efd873cd393134ea2a802fcbabc9adc7