[INFO] cloning repository https://github.com/prajithkb/datastructures_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/prajithkb/datastructures_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajithkb%2Fdatastructures_in_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajithkb%2Fdatastructures_in_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f400e87cdc4f456e7d702ba360023484730ae9d2 [INFO] checking prajithkb/datastructures_in_rust against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajithkb%2Fdatastructures_in_rust" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/prajithkb/datastructures_in_rust on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/prajithkb/datastructures_in_rust [INFO] finished tweaking git repo https://github.com/prajithkb/datastructures_in_rust [INFO] tweaked toml for git repo https://github.com/prajithkb/datastructures_in_rust written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/prajithkb/datastructures_in_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b70088e730383314fdc15b724b2d36aafedfc716bc7b9e16bc26c93831a3ea69 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b70088e730383314fdc15b724b2d36aafedfc716bc7b9e16bc26c93831a3ea69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b70088e730383314fdc15b724b2d36aafedfc716bc7b9e16bc26c93831a3ea69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b70088e730383314fdc15b724b2d36aafedfc716bc7b9e16bc26c93831a3ea69", kill_on_drop: false }` [INFO] [stdout] b70088e730383314fdc15b724b2d36aafedfc716bc7b9e16bc26c93831a3ea69 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 78b19575e94de867171f177e7d3b4474ae3b173580c66b2e39a98e0e3bba4400 [INFO] running `Command { std: "docker" "start" "-a" "78b19575e94de867171f177e7d3b4474ae3b173580c66b2e39a98e0e3bba4400", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Compiling semver v0.11.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking colored v2.0.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Compiling rustc_version v0.3.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Compiling cast v0.2.6 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking atoi v0.4.0 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking datastructures_in_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stdout] warning: unused import: `array::IntoIter` [INFO] [stdout] --> src/leetcode/parser.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use std::{array::IntoIter, collections::VecDeque, fmt::Display, fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_vec` [INFO] [stdout] --> src/leetcode/parser.rs:44:8 [INFO] [stdout] | [INFO] [stdout] 44 | fn into_vec(self, mapper: F) -> Result, ItemConversionError> [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_iter` [INFO] [stdout] --> src/leetcode/parser.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | fn into_iter(self) -> Result, ItemConversionError> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_num` [INFO] [stdout] --> src/leetcode/parser.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | fn into_num(self) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `map` [INFO] [stdout] --> src/leetcode/parser.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | fn map(self, mut mapper: F) -> Result [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_string` [INFO] [stdout] --> src/leetcode/parser.rs:74:8 [INFO] [stdout] | [INFO] [stdout] 74 | fn into_string(self) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_bytes` [INFO] [stdout] --> src/leetcode/parser.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | fn as_bytes(&self) -> Result<&[u8], ItemConversionError> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `positions` [INFO] [stdout] --> src/main.rs:6:28 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn falling_squares(positions: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/main.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `falling_squares` [INFO] [stdout] --> src/main.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn falling_squares(positions: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stdout] warning: unused variable: `positions` [INFO] [stdout] --> src/main.rs:6:28 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn falling_squares(positions: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/main.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `falling_squares` [INFO] [stdout] --> src/main.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn falling_squares(positions: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `array::IntoIter` [INFO] [stdout] --> src/leetcode/parser.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use std::{array::IntoIter, collections::VecDeque, fmt::Display, fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/leetcode/parser.rs:210:13 [INFO] [stdout] | [INFO] [stdout] 210 | let item = Item::from_str("12,23,[1,2]]"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 03s [INFO] running `Command { std: "docker" "inspect" "78b19575e94de867171f177e7d3b4474ae3b173580c66b2e39a98e0e3bba4400", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78b19575e94de867171f177e7d3b4474ae3b173580c66b2e39a98e0e3bba4400", kill_on_drop: false }` [INFO] [stdout] 78b19575e94de867171f177e7d3b4474ae3b173580c66b2e39a98e0e3bba4400