[INFO] cloning repository https://github.com/weixinZhang12/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/weixinZhang12/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FweixinZhang12%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FweixinZhang12%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 412ece60caf2427be41f92dc81eeeb44e52a0757
[INFO] testing weixinZhang12/rust_practice against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FweixinZhang12%2Frust_practice" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/weixinZhang12/rust_practice
[INFO] finished tweaking git repo https://github.com/weixinZhang12/rust_practice
[INFO] tweaked toml for git repo https://github.com/weixinZhang12/rust_practice written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/weixinZhang12/rust_practice on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/weixinZhang12/rust_practice 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9035c99b1ce91e6a282ed904f75726398577ddef92b4c7c73bde4e6478097f57
[INFO] running `Command { std: "docker" "start" "-a" "9035c99b1ce91e6a282ed904f75726398577ddef92b4c7c73bde4e6478097f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9035c99b1ce91e6a282ed904f75726398577ddef92b4c7c73bde4e6478097f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9035c99b1ce91e6a282ed904f75726398577ddef92b4c7c73bde4e6478097f57", kill_on_drop: false }`
[INFO] [stdout] 9035c99b1ce91e6a282ed904f75726398577ddef92b4c7c73bde4e6478097f57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 004b7b93fc87b245c298ced76ac02a8f9f9f8ebbcdc26e5254a57e611a4fa41f
[INFO] running `Command { std: "docker" "start" "-a" "004b7b93fc87b245c298ced76ac02a8f9f9f8ebbcdc26e5254a57e611a4fa41f", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling rust_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `l171`
[INFO] [stdout]  --> src/main.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::leetcode::{l171, l389};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/leetcode/l283.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/leetcode/l389.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |             xor ^= (c as u8)
[INFO] [stdout]   |                    ^       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 5 -             xor ^= (c as u8)
[INFO] [stdout] 5 +             xor ^= c as u8
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/leetcode/l389.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |             xor ^= (c as u8)
[INFO] [stdout]   |                    ^       ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 -             xor ^= (c as u8)
[INFO] [stdout] 8 +             xor ^= c as u8
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp` is never read
[INFO] [stdout]  --> src/leetcode/l283.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut temp = 0;
[INFO] [stdout]   |                    ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mid` is never read
[INFO] [stdout]  --> src/leetcode/l35.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut mid: usize = 0;
[INFO] [stdout]   |                          ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "004b7b93fc87b245c298ced76ac02a8f9f9f8ebbcdc26e5254a57e611a4fa41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004b7b93fc87b245c298ced76ac02a8f9f9f8ebbcdc26e5254a57e611a4fa41f", kill_on_drop: false }`
[INFO] [stdout] 004b7b93fc87b245c298ced76ac02a8f9f9f8ebbcdc26e5254a57e611a4fa41f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e23a40ba0305d34c2dd8a1d59361f7d7be899c57bce76cedc6028a37e5bfa95d
[INFO] running `Command { std: "docker" "start" "-a" "e23a40ba0305d34c2dd8a1d59361f7d7be899c57bce76cedc6028a37e5bfa95d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `l171`
[INFO] [stdout]  --> src/main.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::leetcode::{l171, l389};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/leetcode/l283.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/leetcode/l389.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |             xor ^= (c as u8)
[INFO] [stdout]   |                    ^       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 5 -             xor ^= (c as u8)
[INFO] [stdout] 5 +             xor ^= c as u8
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/leetcode/l389.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |             xor ^= (c as u8)
[INFO] [stdout]   |                    ^       ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 -             xor ^= (c as u8)
[INFO] [stdout] 8 +             xor ^= c as u8
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp` is never read
[INFO] [stdout]  --> src/leetcode/l283.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut temp = 0;
[INFO] [stdout]   |                    ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mid` is never read
[INFO] [stdout]  --> src/leetcode/l35.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut mid: usize = 0;
[INFO] [stdout]   |                          ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "e23a40ba0305d34c2dd8a1d59361f7d7be899c57bce76cedc6028a37e5bfa95d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23a40ba0305d34c2dd8a1d59361f7d7be899c57bce76cedc6028a37e5bfa95d", kill_on_drop: false }`
[INFO] [stdout] e23a40ba0305d34c2dd8a1d59361f7d7be899c57bce76cedc6028a37e5bfa95d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6939b90b6328f131ca530cc0fd27df0133ab290c8b94bd9f8f5c3ca8eed1ea38
[INFO] running `Command { std: "docker" "start" "-a" "6939b90b6328f131ca530cc0fd27df0133ab290c8b94bd9f8f5c3ca8eed1ea38", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `l171`
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:6:23
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 6 | use crate::leetcode::{l171, l389};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |                       ^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::num`
[INFO] [stderr]  --> src/leetcode/l283.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::num;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/leetcode/l389.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |             xor ^= (c as u8)
[INFO] [stderr]   |                    ^       ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 5 -             xor ^= (c as u8)
[INFO] [stderr] 5 +             xor ^= c as u8
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/leetcode/l389.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 |             xor ^= (c as u8)
[INFO] [stderr]   |                    ^       ^
[INFO] [stderr]   |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 8 -             xor ^= (c as u8)
[INFO] [stderr] 8 +             xor ^= c as u8
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `temp` is never read
[INFO] [stderr]  --> src/leetcode/l283.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut temp = 0;
[INFO] [stderr]   |                    ^
[INFO] [stderr]   |
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `mid` is never read
[INFO] [stderr]  --> src/leetcode/l35.rs:5:26
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut mid: usize = 0;
[INFO] [stderr]   |                          ^
[INFO] [stderr]   |
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_practice` (bin "rust_practice" test) generated 6 warnings (run `cargo fix --bin "rust_practice" -p rust_practice --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_practice-9d335b99dff103f0)
[INFO] running `Command { std: "docker" "inspect" "6939b90b6328f131ca530cc0fd27df0133ab290c8b94bd9f8f5c3ca8eed1ea38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6939b90b6328f131ca530cc0fd27df0133ab290c8b94bd9f8f5c3ca8eed1ea38", kill_on_drop: false }`
[INFO] [stdout] 6939b90b6328f131ca530cc0fd27df0133ab290c8b94bd9f8f5c3ca8eed1ea38
