[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] testing kuy/opendatastructures-study against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuy%2Fopendatastructures-study" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kuy/opendatastructures-study on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1225b864ad87f9a5cde2f0fc044398997b8262a2810123c38126eb77aed729f4
[INFO] running `Command { std: "docker" "start" "-a" "1225b864ad87f9a5cde2f0fc044398997b8262a2810123c38126eb77aed729f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1225b864ad87f9a5cde2f0fc044398997b8262a2810123c38126eb77aed729f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1225b864ad87f9a5cde2f0fc044398997b8262a2810123c38126eb77aed729f4", kill_on_drop: false }`
[INFO] [stdout] 1225b864ad87f9a5cde2f0fc044398997b8262a2810123c38126eb77aed729f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22706ae44d35c46720bf64dc46184585782d492204e0d2a70852f4f77800af3b
[INFO] running `Command { std: "docker" "start" "-a" "22706ae44d35c46720bf64dc46184585782d492204e0d2a70852f4f77800af3b", 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<T> {
[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<T> 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<T> ArrayQueue<T> 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: trait `List` is never used
[INFO] [stdout]  --> src/ch02/array_stack.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait List<T> {
[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<T> where T: Default + Copy {
[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<T> ArrayStack<T> 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 0.16s
[INFO] running `Command { std: "docker" "inspect" "22706ae44d35c46720bf64dc46184585782d492204e0d2a70852f4f77800af3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22706ae44d35c46720bf64dc46184585782d492204e0d2a70852f4f77800af3b", kill_on_drop: false }`
[INFO] [stdout] 22706ae44d35c46720bf64dc46184585782d492204e0d2a70852f4f77800af3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f12fd6aeac3d2f8d5ebc9e9942da855d8aa2833e997bf84dba2ab6c7ab377284
[INFO] running `Command { std: "docker" "start" "-a" "f12fd6aeac3d2f8d5ebc9e9942da855d8aa2833e997bf84dba2ab6c7ab377284", 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<T> ArrayQueue<T> 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 0.29s
[INFO] running `Command { std: "docker" "inspect" "f12fd6aeac3d2f8d5ebc9e9942da855d8aa2833e997bf84dba2ab6c7ab377284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12fd6aeac3d2f8d5ebc9e9942da855d8aa2833e997bf84dba2ab6c7ab377284", kill_on_drop: false }`
[INFO] [stdout] f12fd6aeac3d2f8d5ebc9e9942da855d8aa2833e997bf84dba2ab6c7ab377284
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0674da3b8a259869c2658a99f72a6d327a589888eec6d7651643495bfc941e33
[INFO] running `Command { std: "docker" "start" "-a" "0674da3b8a259869c2658a99f72a6d327a589888eec6d7651643495bfc941e33", kill_on_drop: false }`
[INFO] [stderr] warning: method `debug` is never used
[INFO] [stderr]   --> src/ch02/array_queue.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl<T> ArrayQueue<T> where T: Default + Copy + std::fmt::Debug {
[INFO] [stderr]    | --------------------------------------------------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 44 |     fn debug(&self, tag: &str) {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `opendatastructures-study` (bin "opendatastructures-study" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/opendatastructures_study-13a8c62998ca1efc)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test ch02::array_queue::tests::test_add_remove ... ok
[INFO] [stdout] test ch02::array_queue::tests::test_resize ... ok
[INFO] [stdout] test ch02::array_queue::tests::test_capacity ... ok
[INFO] [stdout] test ch02::array_stack::tests::test_add ... ok
[INFO] [stdout] test ch02::array_stack::tests::test_get ... ok
[INFO] [stdout] test ch02::array_stack::tests::test_remove ... ok
[INFO] [stdout] test ch02::array_stack::tests::test_resize ... ok
[INFO] [stdout] test ch02::array_stack::tests::test_set ... ok
[INFO] [stdout] test ch02::array_stack::tests::test_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0674da3b8a259869c2658a99f72a6d327a589888eec6d7651643495bfc941e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0674da3b8a259869c2658a99f72a6d327a589888eec6d7651643495bfc941e33", kill_on_drop: false }`
[INFO] [stdout] 0674da3b8a259869c2658a99f72a6d327a589888eec6d7651643495bfc941e33