[INFO] fetching crate filelib 0.1.3...
[INFO] testing filelib-0.1.3 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate filelib 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate filelib 0.1.3
[INFO] finished tweaking crates.io crate filelib 0.1.3
[INFO] tweaked toml for crates.io crate filelib 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate filelib 0.1.3 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e18c62f123bed7e67906759fb40cca9c4a29b56e6883d620fa7d70a78e473cbe
[INFO] running `Command { std: "docker" "start" "-a" "e18c62f123bed7e67906759fb40cca9c4a29b56e6883d620fa7d70a78e473cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e18c62f123bed7e67906759fb40cca9c4a29b56e6883d620fa7d70a78e473cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18c62f123bed7e67906759fb40cca9c4a29b56e6883d620fa7d70a78e473cbe", kill_on_drop: false }`
[INFO] [stdout] e18c62f123bed7e67906759fb40cca9c4a29b56e6883d620fa7d70a78e473cbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82c751f816ce2505fd0dfa38022409c1e72137534117ced3e9cd44319bec970b
[INFO] running `Command { std: "docker" "start" "-a" "82c751f816ce2505fd0dfa38022409c1e72137534117ced3e9cd44319bec970b", kill_on_drop: false }`
[INFO] [stderr]    Compiling filelib v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `has_changed` is never read
[INFO] [stdout]    --> src/lib.rs:192:31
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let mut has_changed = false;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let mut root = PathBuf::from(path);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:312:13
[INFO] [stdout]     |
[INFO] [stdout] 312 |         let mut new_name = PathBuf::from(new_name);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let mut root = PathBuf::from(path);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_path` is never read
[INFO] [stdout]    --> src/lib.rs:341:37
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let mut new_path: PathBuf = Default::default();
[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 0.39s
[INFO] running `Command { std: "docker" "inspect" "82c751f816ce2505fd0dfa38022409c1e72137534117ced3e9cd44319bec970b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c751f816ce2505fd0dfa38022409c1e72137534117ced3e9cd44319bec970b", kill_on_drop: false }`
[INFO] [stdout] 82c751f816ce2505fd0dfa38022409c1e72137534117ced3e9cd44319bec970b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef6bfa182b464abe1da489d3825c161b58bc4e37e2e51b40eafacbc9e4b00e36
[INFO] running `Command { std: "docker" "start" "-a" "ef6bfa182b464abe1da489d3825c161b58bc4e37e2e51b40eafacbc9e4b00e36", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `has_changed` is never read
[INFO] [stdout]    --> src/lib.rs:192:31
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let mut has_changed = false;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let mut root = PathBuf::from(path);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:312:13
[INFO] [stdout]     |
[INFO] [stdout] 312 |         let mut new_name = PathBuf::from(new_name);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let mut root = PathBuf::from(path);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_path` is never read
[INFO] [stdout]    --> src/lib.rs:341:37
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let mut new_path: PathBuf = Default::default();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling filelib v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `has_changed` is never read
[INFO] [stdout]    --> src/lib.rs:192:31
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let mut has_changed = false;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let mut root = PathBuf::from(path);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:312:13
[INFO] [stdout]     |
[INFO] [stdout] 312 |         let mut new_name = PathBuf::from(new_name);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let mut root = PathBuf::from(path);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_path` is never read
[INFO] [stdout]    --> src/lib.rs:341:37
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let mut new_path: PathBuf = Default::default();
[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 0.35s
[INFO] running `Command { std: "docker" "inspect" "ef6bfa182b464abe1da489d3825c161b58bc4e37e2e51b40eafacbc9e4b00e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6bfa182b464abe1da489d3825c161b58bc4e37e2e51b40eafacbc9e4b00e36", kill_on_drop: false }`
[INFO] [stdout] ef6bfa182b464abe1da489d3825c161b58bc4e37e2e51b40eafacbc9e4b00e36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bbc7de0e8deffb732c8f24fd803aec590b84f6ab44207a92b08f5041bb0c5f94
[INFO] running `Command { std: "docker" "start" "-a" "bbc7de0e8deffb732c8f24fd803aec590b84f6ab44207a92b08f5041bb0c5f94", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `has_changed` is never read
[INFO] [stderr]    --> src/lib.rs:192:31
[INFO] [stderr]     |
[INFO] [stderr] 192 |         let mut has_changed = false;
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:227:13
[INFO] [stderr]     |
[INFO] [stderr] 227 |         let mut root = PathBuf::from(path);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:312:13
[INFO] [stderr]     |
[INFO] [stderr] 312 |         let mut new_name = PathBuf::from(new_name);
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:339:13
[INFO] [stderr]     |
[INFO] [stderr] 339 |         let mut root = PathBuf::from(path);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `new_path` is never read
[INFO] [stderr]    --> src/lib.rs:341:37
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let mut new_path: PathBuf = Default::default();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `filelib` (lib) generated 5 warnings (run `cargo fix --lib -p filelib` to apply 3 suggestions)
[INFO] [stderr] warning: `filelib` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/filelib-34344f7ead00e55a)
[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]    Doc-tests filelib
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/lib.rs - FileManager::file_exists (line 120) ... FAILED
[INFO] [stdout] test src/lib.rs - FileManager::change_extension (line 182) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::clean_file (line 73) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::copy_dir (line 326) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::copy_file (line 215) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::create_dir (line 248) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::create_file (line 19) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::delete_dir (line 274) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::delete_file (line 138) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::read_file (line 97) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::rename_dir (line 300) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::rename_file (line 157) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileManager::write_to_file (line 41) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileSender::receive_file (line 542) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - FileSender::send_file (line 514) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - Utils::get_dir_size (line 475) has been running for over 60 seconds
[INFO] [stdout] test src/lib.rs - Utils::get_file_size (line 452) has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "bbc7de0e8deffb732c8f24fd803aec590b84f6ab44207a92b08f5041bb0c5f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc7de0e8deffb732c8f24fd803aec590b84f6ab44207a92b08f5041bb0c5f94", kill_on_drop: false }`
[INFO] [stdout] bbc7de0e8deffb732c8f24fd803aec590b84f6ab44207a92b08f5041bb0c5f94
