[INFO] fetching crate scan-lib 0.1.1...
[INFO] building scan-lib-0.1.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate scan-lib 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate scan-lib 0.1.1
[INFO] finished tweaking crates.io crate scan-lib 0.1.1
[INFO] tweaked toml for crates.io crate scan-lib 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scan-lib 0.1.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a8c8eb786eccc0a68731276e038661e60115e10cd63ad37496e67cb25900300
[INFO] running `Command { std: "docker" "start" "-a" "6a8c8eb786eccc0a68731276e038661e60115e10cd63ad37496e67cb25900300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a8c8eb786eccc0a68731276e038661e60115e10cd63ad37496e67cb25900300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8c8eb786eccc0a68731276e038661e60115e10cd63ad37496e67cb25900300", kill_on_drop: false }`
[INFO] [stdout] 6a8c8eb786eccc0a68731276e038661e60115e10cd63ad37496e67cb25900300
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 061ddf2acccbba3eb97daeb6913b4d6dca8fc2cd5a1b3b4f69e12605893bca0d
[INFO] running `Command { std: "docker" "start" "-a" "061ddf2acccbba3eb97daeb6913b4d6dca8fc2cd5a1b3b4f69e12605893bca0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling scan-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `parent_dir` is never used
[INFO] [stdout]  --> src/dir_operations.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_dir` is never used
[INFO] [stdout]   --> src/dir_operations.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn is_dir(path: &String) -> bool {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/path_manipulation.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(crate) fn print(paths: Vec<String>) {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blacklist_file_write` is never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct DirectorySearcher{
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 25 |     blacklist: HashSet<String>,
[INFO] [stdout] 26 |     blacklist_file_write: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `search` and `get_paths` are never used
[INFO] [stdout]    --> src/lib.rs:77:19
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl DirectorySearcher {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  77 |     pub(crate) fn search(&mut self, root_path: &str, be_searched_: &str) -> Vec<String> {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn get_paths(&mut self, path: &str) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "061ddf2acccbba3eb97daeb6913b4d6dca8fc2cd5a1b3b4f69e12605893bca0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "061ddf2acccbba3eb97daeb6913b4d6dca8fc2cd5a1b3b4f69e12605893bca0d", kill_on_drop: false }`
[INFO] [stdout] 061ddf2acccbba3eb97daeb6913b4d6dca8fc2cd5a1b3b4f69e12605893bca0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c5582a2e656929001fa2c982d11b24eaf968b477c5e57cf465b55774cc90f41
[INFO] running `Command { std: "docker" "start" "-a" "5c5582a2e656929001fa2c982d11b24eaf968b477c5e57cf465b55774cc90f41", kill_on_drop: false }`
[INFO] [stdout] warning: function `parent_dir` is never used
[INFO] [stdout]  --> src/dir_operations.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_dir` is never used
[INFO] [stdout]   --> src/dir_operations.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn is_dir(path: &String) -> bool {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/path_manipulation.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(crate) fn print(paths: Vec<String>) {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blacklist_file_write` is never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct DirectorySearcher{
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 25 |     blacklist: HashSet<String>,
[INFO] [stdout] 26 |     blacklist_file_write: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `search` and `get_paths` are never used
[INFO] [stdout]    --> src/lib.rs:77:19
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl DirectorySearcher {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  77 |     pub(crate) fn search(&mut self, root_path: &str, be_searched_: &str) -> Vec<String> {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn get_paths(&mut self, path: &str) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scan-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `parent_dir` is never used
[INFO] [stdout]  --> src/dir_operations.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn parent_dir() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/path_manipulation.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(crate) fn print(paths: Vec<String>) {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "5c5582a2e656929001fa2c982d11b24eaf968b477c5e57cf465b55774cc90f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c5582a2e656929001fa2c982d11b24eaf968b477c5e57cf465b55774cc90f41", kill_on_drop: false }`
[INFO] [stdout] 5c5582a2e656929001fa2c982d11b24eaf968b477c5e57cf465b55774cc90f41