[INFO] cloning repository https://github.com/kuy/opendatastructures-study [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kuy/opendatastructures-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuy%2Fopendatastructures-study", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuy%2Fopendatastructures-study'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 72dd45d4047f0daf4aef2bd04e6efa0abbd4214d [INFO] building kuy/opendatastructures-study against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuy%2Fopendatastructures-study" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kuy/opendatastructures-study [INFO] finished tweaking git repo https://github.com/kuy/opendatastructures-study [INFO] tweaked toml for git repo https://github.com/kuy/opendatastructures-study written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kuy/opendatastructures-study on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kuy/opendatastructures-study 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1bc62d56e2d9e721bdb5f0fa87975d7da1b64e7733c8af48d629079881976bf7 [INFO] running `Command { std: "docker" "start" "-a" "1bc62d56e2d9e721bdb5f0fa87975d7da1b64e7733c8af48d629079881976bf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1bc62d56e2d9e721bdb5f0fa87975d7da1b64e7733c8af48d629079881976bf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1bc62d56e2d9e721bdb5f0fa87975d7da1b64e7733c8af48d629079881976bf7", kill_on_drop: false }` [INFO] [stdout] 1bc62d56e2d9e721bdb5f0fa87975d7da1b64e7733c8af48d629079881976bf7 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7b6bdd40b6a89441a5aa47816bf97192bda2d2680ff3d29b895f98c9163719f6 [INFO] running `Command { std: "docker" "start" "-a" "7b6bdd40b6a89441a5aa47816bf97192bda2d2680ff3d29b895f98c9163719f6", kill_on_drop: false }` [INFO] [stderr] Compiling opendatastructures-study v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `Queue` is never used [INFO] [stdout] --> src/ch02/array_queue.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | trait Queue { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ArrayQueue` is never constructed [INFO] [stdout] --> src/ch02/array_queue.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct ArrayQueue where T: Default + Copy { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `List` is never used [INFO] [stdout] --> src/ch02/array_stack.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | trait List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ArrayStack` is never constructed [INFO] [stdout] --> src/ch02/array_stack.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct ArrayStack where T: Default + Copy { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `with_capacity`, `capacity`, `resize`, and `debug` are never used [INFO] [stdout] --> src/ch02/array_queue.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl ArrayQueue where T: Default + Copy + std::fmt::Debug { [INFO] [stdout] | --------------------------------------------------------------- associated items in this implementation [INFO] [stdout] 14 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn with_capacity(n: usize) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn capacity(&self) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | fn resize(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn debug(&self, tag: &str) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `resize`, and `capacity` are never used [INFO] [stdout] --> src/ch02/array_stack.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl ArrayStack where T: Default + Copy { [INFO] [stdout] | --------------------------------------------- associated items in this implementation [INFO] [stdout] 15 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | fn resize(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn capacity(&self) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s [INFO] running `Command { std: "docker" "inspect" "7b6bdd40b6a89441a5aa47816bf97192bda2d2680ff3d29b895f98c9163719f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b6bdd40b6a89441a5aa47816bf97192bda2d2680ff3d29b895f98c9163719f6", kill_on_drop: false }` [INFO] [stdout] 7b6bdd40b6a89441a5aa47816bf97192bda2d2680ff3d29b895f98c9163719f6 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9dc2c5c5aab972088b1c328c6e10939fcb341519abe0b2281dd7ae9bcadd9ed6 [INFO] running `Command { std: "docker" "start" "-a" "9dc2c5c5aab972088b1c328c6e10939fcb341519abe0b2281dd7ae9bcadd9ed6", kill_on_drop: false }` [INFO] [stderr] Compiling opendatastructures-study v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `debug` is never used [INFO] [stdout] --> src/ch02/array_queue.rs:44:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl ArrayQueue where T: Default + Copy + std::fmt::Debug { [INFO] [stdout] | --------------------------------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 44 | fn debug(&self, tag: &str) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `Command { std: "docker" "inspect" "9dc2c5c5aab972088b1c328c6e10939fcb341519abe0b2281dd7ae9bcadd9ed6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9dc2c5c5aab972088b1c328c6e10939fcb341519abe0b2281dd7ae9bcadd9ed6", kill_on_drop: false }` [INFO] [stdout] 9dc2c5c5aab972088b1c328c6e10939fcb341519abe0b2281dd7ae9bcadd9ed6