[INFO] cloning repository https://github.com/alelopezperez/rust-algorithms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alelopezperez/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelopezperez%2Frust-algorithms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelopezperez%2Frust-algorithms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7f9ef80284b46dc9e90d4e1058ce8db8a2f390be [INFO] checking alelopezperez/rust-algorithms against try#c4ca24658d934444a28db36abebef17a8651701a for pr-144156 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelopezperez%2Frust-algorithms" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] error: copy-fd: write returned: No space left on device [INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/info/exclude' to '/workspace/builds/worker-1-tc2/source/.git/info/exclude': No space left on device [INFO] checking alelopezperez/rust-algorithms against try#c4ca24658d934444a28db36abebef17a8651701a for pr-144156 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelopezperez%2Frust-algorithms" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/alelopezperez/rust-algorithms [INFO] finished tweaking git repo https://github.com/alelopezperez/rust-algorithms [INFO] tweaked toml for git repo https://github.com/alelopezperez/rust-algorithms written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/alelopezperez/rust-algorithms on toolchain c4ca24658d934444a28db36abebef17a8651701a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/alelopezperez/rust-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" "+c4ca24658d934444a28db36abebef17a8651701a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/f964ebad38ce85a45504b9490a98df21246ac6e1d4c03bd6e7d8a308c97b3fc9/diff: no space left on device [INFO] checking alelopezperez/rust-algorithms against try#c4ca24658d934444a28db36abebef17a8651701a for pr-144156 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelopezperez%2Frust-algorithms" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/alelopezperez/rust-algorithms [INFO] finished tweaking git repo https://github.com/alelopezperez/rust-algorithms [INFO] tweaked toml for git repo https://github.com/alelopezperez/rust-algorithms written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/alelopezperez/rust-algorithms on toolchain c4ca24658d934444a28db36abebef17a8651701a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/alelopezperez/rust-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" "+c4ca24658d934444a28db36abebef17a8651701a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c0ddc0105015e361ee0c2da0a79c68302d411b41accfc95273ac8c2b7fbe6b52 [INFO] running `Command { std: "docker" "start" "-a" "c0ddc0105015e361ee0c2da0a79c68302d411b41accfc95273ac8c2b7fbe6b52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c0ddc0105015e361ee0c2da0a79c68302d411b41accfc95273ac8c2b7fbe6b52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0ddc0105015e361ee0c2da0a79c68302d411b41accfc95273ac8c2b7fbe6b52", kill_on_drop: false }` [INFO] [stdout] c0ddc0105015e361ee0c2da0a79c68302d411b41accfc95273ac8c2b7fbe6b52 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1db8c827a698b96db9f450df8d2bb9c0da4b399cc9989d221719a2faa9b8768 [INFO] running `Command { std: "docker" "start" "-a" "f1db8c827a698b96db9f450df8d2bb9c0da4b399cc9989d221719a2faa9b8768", kill_on_drop: false }` [INFO] [stderr] Checking rust-algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `strs` [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let strs = String::from("Asd"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_strs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fol` [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let fol = letter_set.iter().fold(true, |acc, item| acc && *item == 0); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_fol` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut letter_set = vec![0; 26]; [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: struct `Solution` is never constructed [INFO] [stdout] --> src/bin/example/example.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `strs` [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let strs = String::from("Asd"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_strs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `counter` and `is_balanced` are never used [INFO] [stdout] --> src/bin/example/example.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn counter(root: &Option>>, mut curr: i32) -> i32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn is_balanced(root: Option>>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fol` [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let fol = letter_set.iter().fold(true, |acc, item| acc && *item == 0); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_fol` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/group-anagrams/group-anagrams.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut letter_set = vec![0; 26]; [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: struct `Solution` is never constructed [INFO] [stdout] --> src/bin/example/example.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `counter` and `is_balanced` are never used [INFO] [stdout] --> src/bin/example/example.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn counter(root: &Option>>, mut curr: i32) -> i32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn is_balanced(root: Option>>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "f1db8c827a698b96db9f450df8d2bb9c0da4b399cc9989d221719a2faa9b8768", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1db8c827a698b96db9f450df8d2bb9c0da4b399cc9989d221719a2faa9b8768", kill_on_drop: false }` [INFO] [stdout] f1db8c827a698b96db9f450df8d2bb9c0da4b399cc9989d221719a2faa9b8768