[INFO] fetching crate cauly-rust-leetcode-utils 0.1.1...
[INFO] testing cauly-rust-leetcode-utils-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate cauly-rust-leetcode-utils 0.1.1 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate cauly-rust-leetcode-utils 0.1.1 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 crates.io crate cauly-rust-leetcode-utils 0.1.1
[INFO] finished tweaking crates.io crate cauly-rust-leetcode-utils 0.1.1
[INFO] tweaked toml for crates.io crate cauly-rust-leetcode-utils 0.1.1 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] fc9e3d4e21a60bbf1e93564d25ae0ee7d2755522e5731c41f14f21d8b5fd2567
[INFO] running `Command { std: "docker" "start" "-a" "fc9e3d4e21a60bbf1e93564d25ae0ee7d2755522e5731c41f14f21d8b5fd2567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc9e3d4e21a60bbf1e93564d25ae0ee7d2755522e5731c41f14f21d8b5fd2567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc9e3d4e21a60bbf1e93564d25ae0ee7d2755522e5731c41f14f21d8b5fd2567", kill_on_drop: false }`
[INFO] [stdout] fc9e3d4e21a60bbf1e93564d25ae0ee7d2755522e5731c41f14f21d8b5fd2567
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] c91a82198c9ccbbe93d982bdd19a9616a7286a63c099094dd8e6c9898b13cb67
[INFO] running `Command { std: "docker" "start" "-a" "c91a82198c9ccbbe93d982bdd19a9616a7286a63c099094dd8e6c9898b13cb67", kill_on_drop: false }`
[INFO] [stderr]    Compiling cauly-rust-leetcode-utils v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut filename;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "c91a82198c9ccbbe93d982bdd19a9616a7286a63c099094dd8e6c9898b13cb67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c91a82198c9ccbbe93d982bdd19a9616a7286a63c099094dd8e6c9898b13cb67", kill_on_drop: false }`
[INFO] [stdout] c91a82198c9ccbbe93d982bdd19a9616a7286a63c099094dd8e6c9898b13cb67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] dacbf1048a3a646ec6d41b9d8d554fb70a035c0ee2f182aa788ce2dfae42d56f
[INFO] running `Command { std: "docker" "start" "-a" "dacbf1048a3a646ec6d41b9d8d554fb70a035c0ee2f182aa788ce2dfae42d56f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cauly-rust-leetcode-utils v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut filename;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut filename;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` 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 0.96s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/cauly_rust_leetcode_utils-1ac0efbec21e79f8)
[INFO] [stderr]   Executable unittests src/bin/rlfmt.rs (/opt/rustwide/target/debug/deps/rlfmt-8ac08626315a9353)
[INFO] [stderr]   Executable tests/binary_tree.rs (/opt/rustwide/target/debug/deps/binary_tree-54420ce1766c2ee8)
[INFO] [stderr]   Executable tests/union_find.rs (/opt/rustwide/target/debug/deps/union_find-809a92f29f4bc9dc)
[INFO] running `Command { std: "docker" "inspect" "dacbf1048a3a646ec6d41b9d8d554fb70a035c0ee2f182aa788ce2dfae42d56f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dacbf1048a3a646ec6d41b9d8d554fb70a035c0ee2f182aa788ce2dfae42d56f", kill_on_drop: false }`
[INFO] [stdout] dacbf1048a3a646ec6d41b9d8d554fb70a035c0ee2f182aa788ce2dfae42d56f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 8d4401e26095fe2f687f2ec01ea6174faaccaca144e964dd1bc3d6eb06eb9a2c
[INFO] running `Command { std: "docker" "start" "-a" "8d4401e26095fe2f687f2ec01ea6174faaccaca144e964dd1bc3d6eb06eb9a2c", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/rlfmt.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut filename;
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cauly-rust-leetcode-utils` (bin "rlfmt" test) generated 1 warning
[INFO] [stderr] warning: `cauly-rust-leetcode-utils` (bin "rlfmt") generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cauly_rust_leetcode_utils-1ac0efbec21e79f8)
[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] [stderr]      Running unittests src/bin/rlfmt.rs (/opt/rustwide/target/debug/deps/rlfmt-8ac08626315a9353)
[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] [stderr]      Running tests/binary_tree.rs (/opt/rustwide/target/debug/deps/binary_tree-54420ce1766c2ee8)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test2 ... ok
[INFO] [stdout] test test1 ... ok
[INFO] [stdout] test test3 ... ok
[INFO] [stdout] test test4 ... ok
[INFO] [stdout] test test5 ... ok
[INFO] [stdout] test test6 ... ok
[INFO] [stdout] test test8 ... ok
[INFO] [stdout] test test7 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/union_find.rs (/opt/rustwide/target/debug/deps/union_find-809a92f29f4bc9dc)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test1 ... ok
[INFO] [stdout] test test2 ... ok
[INFO] [stdout] test test4 ... ok
[INFO] [stdout] test test3 ... ok
[INFO] [stdout] test test5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cauly-rust-leetcode-utils
[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" "8d4401e26095fe2f687f2ec01ea6174faaccaca144e964dd1bc3d6eb06eb9a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d4401e26095fe2f687f2ec01ea6174faaccaca144e964dd1bc3d6eb06eb9a2c", kill_on_drop: false }`
[INFO] [stdout] 8d4401e26095fe2f687f2ec01ea6174faaccaca144e964dd1bc3d6eb06eb9a2c