[INFO] cloning repository https://github.com/denglitong/data_structure_with_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/denglitong/data_structure_with_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenglitong%2Fdata_structure_with_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenglitong%2Fdata_structure_with_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 833e484d6eac5fdfe5b6605bd931593806eb8843
[INFO] testing denglitong/data_structure_with_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%2Fdenglitong%2Fdata_structure_with_rust" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/denglitong/data_structure_with_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/denglitong/data_structure_with_rust
[INFO] finished tweaking git repo https://github.com/denglitong/data_structure_with_rust
[INFO] tweaked toml for git repo https://github.com/denglitong/data_structure_with_rust written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate git repo https://github.com/denglitong/data_structure_with_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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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] b989c324973269d30bde993759f3b2a66db1a3d0d3512324c64fe5dedd633d13
[INFO] running `Command { std: "docker" "start" "-a" "b989c324973269d30bde993759f3b2a66db1a3d0d3512324c64fe5dedd633d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b989c324973269d30bde993759f3b2a66db1a3d0d3512324c64fe5dedd633d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b989c324973269d30bde993759f3b2a66db1a3d0d3512324c64fe5dedd633d13", kill_on_drop: false }`
[INFO] [stdout] b989c324973269d30bde993759f3b2a66db1a3d0d3512324c64fe5dedd633d13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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] ad84849e43033a788e7ef1bcb1ee5e03d528999a25b2a3e5dbc93cfe46097237
[INFO] running `Command { std: "docker" "start" "-a" "ad84849e43033a788e7ef1bcb1ee5e03d528999a25b2a3e5dbc93cfe46097237", kill_on_drop: false }`
[INFO] [stderr]    Compiling data_structure_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Index`
[INFO] [stdout]  --> src/queue.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Index, IndexMut};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]    --> src/queue.rs:335:9
[INFO] [stdout]     |
[INFO] [stdout] 335 |     use std::collections::VecDeque;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]    --> src/queue.rs:334:1
[INFO] [stdout]     |
[INFO] [stdout] 334 | mod tests_rust_vec_queue {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
[INFO] running `Command { std: "docker" "inspect" "ad84849e43033a788e7ef1bcb1ee5e03d528999a25b2a3e5dbc93cfe46097237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad84849e43033a788e7ef1bcb1ee5e03d528999a25b2a3e5dbc93cfe46097237", kill_on_drop: false }`
[INFO] [stdout] ad84849e43033a788e7ef1bcb1ee5e03d528999a25b2a3e5dbc93cfe46097237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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] 8bb57c4d4686faf8ad35af5c8b19d5a353dbcca415b3bee236ab20cfd0d256fe
[INFO] running `Command { std: "docker" "start" "-a" "8bb57c4d4686faf8ad35af5c8b19d5a353dbcca415b3bee236ab20cfd0d256fe", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Index`
[INFO] [stdout]  --> src/queue.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Index, IndexMut};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling data_structure_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]    --> src/queue.rs:335:9
[INFO] [stdout]     |
[INFO] [stdout] 335 |     use std::collections::VecDeque;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]    --> src/queue.rs:334:1
[INFO] [stdout]     |
[INFO] [stdout] 334 | mod tests_rust_vec_queue {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Index`
[INFO] [stdout]  --> src/queue.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Index, IndexMut};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] [stderr]   Executable unittests src/queue.rs (/opt/rustwide/target/debug/deps/queue-2190d365220c9407)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/data_structure_in_rust-b49d73434e278ee2)
[INFO] running `Command { std: "docker" "inspect" "8bb57c4d4686faf8ad35af5c8b19d5a353dbcca415b3bee236ab20cfd0d256fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bb57c4d4686faf8ad35af5c8b19d5a353dbcca415b3bee236ab20cfd0d256fe", kill_on_drop: false }`
[INFO] [stdout] 8bb57c4d4686faf8ad35af5c8b19d5a353dbcca415b3bee236ab20cfd0d256fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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", kill_on_drop: false }`
[INFO] [stdout] 9ad96c43477841be7636ebddd5e00655e0500ccfa206dd5bbfd24b61f6a564c2
[INFO] running `Command { std: "docker" "start" "-a" "9ad96c43477841be7636ebddd5e00655e0500ccfa206dd5bbfd24b61f6a564c2", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Index`
[INFO] [stderr]  --> src/queue.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::{Index, IndexMut};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::VecDeque`
[INFO] [stderr]    --> src/queue.rs:335:9
[INFO] [stderr]     |
[INFO] [stderr] 335 |     use std::collections::VecDeque;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]    --> src/queue.rs:334:1
[INFO] [stderr]     |
[INFO] [stderr] 334 | mod tests_rust_vec_queue {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `data_structure_in_rust` (lib) generated 2 warnings
[INFO] [stderr] warning: `data_structure_in_rust` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/queue.rs (/opt/rustwide/target/debug/deps/queue-2190d365220c9407)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests_fixed_capacity_ring_queue::test_dequeue ... ok
[INFO] [stdout] test tests_fixed_capacity_ring_queue::test_enqueue ... ok
[INFO] [stdout] test tests_simple_fixed_capacity_queue::test_new ... ok
[INFO] [stdout] test tests_simple_queue::test_dequeue ... ok
[INFO] [stdout] test tests_simple_fixed_capacity_queue::test_enqueue ... ok
[INFO] [stdout] test tests_simple_fixed_capacity_queue::test_dequeue ... ok
[INFO] [stdout] test tests_fixed_capacity_ring_queue::test_new ... ok
[INFO] [stdout] test tests_rust_vec_queue::test ... ok
[INFO] [stdout] test tests_simple_queue::test_enqueue ... ok
[INFO] [stdout] test tests_simple_queue::test_new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/data_structure_in_rust-b49d73434e278ee2)
[INFO] [stderr]    Doc-tests queue
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9ad96c43477841be7636ebddd5e00655e0500ccfa206dd5bbfd24b61f6a564c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad96c43477841be7636ebddd5e00655e0500ccfa206dd5bbfd24b61f6a564c2", kill_on_drop: false }`
[INFO] [stdout] 9ad96c43477841be7636ebddd5e00655e0500ccfa206dd5bbfd24b61f6a564c2