[INFO] cloning repository https://github.com/link-a/learning-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/link-a/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flink-a%2Flearning-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flink-a%2Flearning-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5cfe739935d47058eacef6536a5a34cefc528368 [INFO] testing link-a/learning-rust against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flink-a%2Flearning-rust" "/workspace/builds/worker-84/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-84/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/link-a/learning-rust on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/link-a/learning-rust [INFO] finished tweaking git repo https://github.com/link-a/learning-rust [INFO] tweaked toml for git repo https://github.com/link-a/learning-rust written to /workspace/builds/worker-84/source/Cargo.toml [INFO] crate git repo https://github.com/link-a/learning-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4c87ba9c2000ad6a57924c20d1fcc39353b5e00ee9a176f3732a527371cf6a51 [INFO] running `Command { std: "docker" "start" "-a" "4c87ba9c2000ad6a57924c20d1fcc39353b5e00ee9a176f3732a527371cf6a51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4c87ba9c2000ad6a57924c20d1fcc39353b5e00ee9a176f3732a527371cf6a51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c87ba9c2000ad6a57924c20d1fcc39353b5e00ee9a176f3732a527371cf6a51", kill_on_drop: false }` [INFO] [stdout] 4c87ba9c2000ad6a57924c20d1fcc39353b5e00ee9a176f3732a527371cf6a51 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5ddf718b50af1806cdb3ae4bc579f64b49e91b99c47fb02840632c8210f9170 [INFO] running `Command { std: "docker" "start" "-a" "c5ddf718b50af1806cdb3ae4bc579f64b49e91b99c47fb02840632c8210f9170", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling bit-vec v0.4.4 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling bloom v0.3.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling ctci v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `cell_1` [INFO] [stdout] --> src/bin/unsafe.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let cell_1 = Cell { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cell_1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/bin/unsafe.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/unsafe.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | val: i32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/unsafe.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | next: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/bin/ref_cells.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/bin/ref_cells.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/bin/ref_cells.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/bin/ref_cells.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/bin/ref_cells.rs:228:9 [INFO] [stdout] | [INFO] [stdout] 228 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ref_cells.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | val: i32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ref_cells.rs:13:14 [INFO] [stdout] | [INFO] [stdout] 13 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/ref_cells.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | next: Option>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ref_cells.rs:13:14 [INFO] [stdout] | [INFO] [stdout] 13 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `min_height` [INFO] [stdout] --> src/bin/comment_block.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | min_height: i16, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `CommentBlock` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/comment_block.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `min_width_pad` [INFO] [stdout] --> src/bin/comment_block.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | min_width_pad: i16, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `CommentBlock` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/comment_block.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `DPSolution` [INFO] [stdout] --> src/bin/house_robber_ii.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct DPSolution {} [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: `rob_simple` [INFO] [stdout] --> src/bin/house_robber_ii.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn rob_simple(nums: &[i32]) -> i32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `rob` [INFO] [stdout] --> src/bin/house_robber_ii.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn rob(nums: Vec) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ownership.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | val: i32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ownership.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | val: u64, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:15:14 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/ownership.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | next: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:15:14 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `prev` [INFO] [stdout] --> src/bin/ownership.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | prev: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:15:14 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ownership.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | val: u64, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:40:14 [INFO] [stdout] | [INFO] [stdout] 40 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/ownership.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | next: Option<&'a Box>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:40:14 [INFO] [stdout] | [INFO] [stdout] 40 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `prev` [INFO] [stdout] --> src/bin/ownership.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | prev: Option<&'a Box>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:40:14 [INFO] [stdout] | [INFO] [stdout] 40 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> src/bin/ref_playground.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `NaiveSolution` [INFO] [stdout] --> src/bin/max_distance_in_arrays.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct NaiveSolution {} [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: `max_distance` [INFO] [stdout] --> src/bin/max_distance_in_arrays.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn max_distance(arrays: Vec>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `FastestSolution` [INFO] [stdout] --> src/bin/max_distance_in_arrays.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | struct FastestSolution {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `max_distance` [INFO] [stdout] --> src/bin/max_distance_in_arrays.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn max_distance(arrays: Vec>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/bin/min_depth_binary_tree.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | 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: `min_depth` [INFO] [stdout] --> src/bin/min_depth_binary_tree.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 27 | pub fn min_depth(root: Option>>) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/linked_list.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | val: T, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/linked_list.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | next: NodePtr, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `prev` [INFO] [stdout] --> src/bin/linked_list.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | prev: NodePtr, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `tail` [INFO] [stdout] --> src/bin/linked_list.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | tail: NodePtr [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `DoublyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:35:10 [INFO] [stdout] | [INFO] [stdout] 35 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.18s [INFO] running `Command { std: "docker" "inspect" "c5ddf718b50af1806cdb3ae4bc579f64b49e91b99c47fb02840632c8210f9170", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5ddf718b50af1806cdb3ae4bc579f64b49e91b99c47fb02840632c8210f9170", kill_on_drop: false }` [INFO] [stdout] c5ddf718b50af1806cdb3ae4bc579f64b49e91b99c47fb02840632c8210f9170 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c2bcc903c7ea830626c0c6abf6ea295d48e10364d1ff2f766cd93f7d31db618c [INFO] running `Command { std: "docker" "start" "-a" "c2bcc903c7ea830626c0c6abf6ea295d48e10364d1ff2f766cd93f7d31db618c", kill_on_drop: false }` [INFO] [stderr] Compiling ctci v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/bin/ref_cells.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/bin/ref_cells.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/bin/ref_cells.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/bin/ref_cells.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/bin/ref_cells.rs:228:9 [INFO] [stdout] | [INFO] [stdout] 228 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/bin/ref_playground.rs:59:13 [INFO] [stdout] | [INFO] [stdout] 59 | let l = &(r.left); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/linked_list.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | val: T, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ref_cells.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | val: i32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ref_cells.rs:13:14 [INFO] [stdout] | [INFO] [stdout] 13 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/linked_list.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | next: NodePtr, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `prev` [INFO] [stdout] --> src/bin/linked_list.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | prev: NodePtr, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `tail` [INFO] [stdout] --> src/bin/linked_list.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | tail: NodePtr [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `DoublyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/linked_list.rs:35:10 [INFO] [stdout] | [INFO] [stdout] 35 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `min_height` [INFO] [stdout] --> src/bin/comment_block.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | min_height: i16, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `CommentBlock` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/comment_block.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `min_width_pad` [INFO] [stdout] --> src/bin/comment_block.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | min_width_pad: i16, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `CommentBlock` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/comment_block.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cell_1` [INFO] [stdout] --> src/bin/unsafe.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let cell_1 = Cell { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cell_1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/bin/unsafe.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/unsafe.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | val: i32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/unsafe.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | next: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ownership.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | val: i32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ownership.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | val: u64, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:15:14 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/ownership.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | next: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:15:14 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `prev` [INFO] [stdout] --> src/bin/ownership.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | prev: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:15:14 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `val` [INFO] [stdout] --> src/bin/ownership.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | val: u64, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:40:14 [INFO] [stdout] | [INFO] [stdout] 40 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `next` [INFO] [stdout] --> src/bin/ownership.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | next: Option<&'a Box>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:40:14 [INFO] [stdout] | [INFO] [stdout] 40 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `prev` [INFO] [stdout] --> src/bin/ownership.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | prev: Option<&'a Box>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/ownership.rs:40:14 [INFO] [stdout] | [INFO] [stdout] 40 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name jump_game --edition=2018 src/bin/jump_game.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=a3920f01eaf89937 -C extra-filename=-a3920f01eaf89937 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name anagram_groups --edition=2018 src/bin/anagram_groups.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=02c05e80da7ce496 -C extra-filename=-02c05e80da7ce496 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name critical_connections --edition=2018 src/bin/critical_connections.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=09527de3713a34d6 -C extra-filename=-09527de3713a34d6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name ch1_1_1 --edition=2018 src/bin/ch1_1_1.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=47504a300bc45eef -C extra-filename=-47504a300bc45eef --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name last_stone_weight --edition=2018 src/bin/last_stone_weight.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=090d7ce6ceb5b9f7 -C extra-filename=-090d7ce6ceb5b9f7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name perform_string_shifts --edition=2018 src/bin/perform_string_shifts.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=ccc6fa2031dbb940 -C extra-filename=-ccc6fa2031dbb940 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name maximal_square --edition=2018 src/bin/maximal_square.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=ef2bb112ebdd57b4 -C extra-filename=-ef2bb112ebdd57b4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name construct_binary_search_tree_from_preorder_traversal --edition=2018 src/bin/construct_binary_search_tree_from_preorder_traversal.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=17fa5a8762146e25 -C extra-filename=-17fa5a8762146e25 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci`; 1 warning emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name ref_playground --edition=2018 src/bin/ref_playground.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=e25bd125f404bb58 -C extra-filename=-e25bd125f404bb58 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name diameter_binary_tree --edition=2018 src/bin/diameter_binary_tree.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=4f6b37f6872591b2 -C extra-filename=-4f6b37f6872591b2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name number_of_islands --edition=2018 src/bin/number_of_islands.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=0316911cd897f5aa -C extra-filename=-0316911cd897f5aa --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci`; 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name ref_cells --edition=2018 src/bin/ref_cells.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=47017cf4e3460ef5 -C extra-filename=-47017cf4e3460ef5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name min_depth_binary_tree --edition=2018 src/bin/min_depth_binary_tree.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=9df5a33925d6f582 -C extra-filename=-9df5a33925d6f582 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name trapping_rain_water --edition=2018 src/bin/trapping_rain_water.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=4cbb7a64e022a2fb -C extra-filename=-4cbb7a64e022a2fb --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name min_path_sum --edition=2018 src/bin/min_path_sum.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=37e4be6b8a402910 -C extra-filename=-37e4be6b8a402910 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name search_rotated_sorted_array --edition=2018 src/bin/search_rotated_sorted_array.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=7e0726a6c060a351 -C extra-filename=-7e0726a6c060a351 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name product_of_array_except_self --edition=2018 src/bin/product_of_array_except_self.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=67303c50f9d6244d -C extra-filename=-67303c50f9d6244d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci`; 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name comment_block --edition=2018 src/bin/comment_block.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=1eaf9839c76d53a8 -C extra-filename=-1eaf9839c76d53a8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name array_triples --edition=2018 src/bin/array_triples.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=77d3b2dd07f45b5e -C extra-filename=-77d3b2dd07f45b5e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name smallest_window_to_sort --edition=2018 src/bin/smallest_window_to_sort.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=be0d4f2ef5f7858b -C extra-filename=-be0d4f2ef5f7858b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name strings_test --edition=2018 src/bin/strings_test.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=138fee3d96ae9863 -C extra-filename=-138fee3d96ae9863 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name max_distance_in_arrays --edition=2018 src/bin/max_distance_in_arrays.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=45e934aff652da50 -C extra-filename=-45e934aff652da50 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name house_robber_ii --edition=2018 src/bin/house_robber_ii.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=00e8c7cc12c78702 -C extra-filename=-00e8c7cc12c78702 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name max_subarray --edition=2018 src/bin/max_subarray.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=f472da1ca31b5ea0 -C extra-filename=-f472da1ca31b5ea0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name valid_parenthesis_string --edition=2018 src/bin/valid_parenthesis_string.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=095fdc0bc6b27600 -C extra-filename=-095fdc0bc6b27600 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci`; 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name linked_list --edition=2018 src/bin/linked_list.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=a6129d5644cfcf8c -C extra-filename=-a6129d5644cfcf8c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name fib --edition=2018 src/bin/fib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=b01583f8d018defe -C extra-filename=-b01583f8d018defe --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name binary_search --edition=2018 src/bin/binary_search.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=d31425e7c3fc7d75 -C extra-filename=-d31425e7c3fc7d75 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] error: could not compile `ctci` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name brackets --edition=2018 src/bin/brackets.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=5541cf07272e1ff2 -C extra-filename=-5541cf07272e1ff2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bloom=/opt/rustwide/target/debug/deps/libbloom-6fde410ffa4dd535.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-9499e20956b800da.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c2bcc903c7ea830626c0c6abf6ea295d48e10364d1ff2f766cd93f7d31db618c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2bcc903c7ea830626c0c6abf6ea295d48e10364d1ff2f766cd93f7d31db618c", kill_on_drop: false }` [INFO] [stdout] c2bcc903c7ea830626c0c6abf6ea295d48e10364d1ff2f766cd93f7d31db618c