[INFO] fetching crate whitewash 0.2.0...
[INFO] testing whitewash-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate whitewash 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate whitewash 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate whitewash 0.2.0
[INFO] finished tweaking crates.io crate whitewash 0.2.0
[INFO] tweaked toml for crates.io crate whitewash 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate whitewash 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indicatif v0.13.0
[INFO] [stderr]   Downloaded gexiv2-sys v1.1.1
[INFO] [stderr]   Downloaded rexiv2 v0.8.0
[INFO] [stderr]   Downloaded termios v0.3.1
[INFO] [stderr]   Downloaded console v0.9.1
[INFO] [stderr]   Downloaded num-traits v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd085fb6cf36d9deb2a692df17044aa4655591bd1cc06c16aad114b9954633ff
[INFO] running `Command { std: "docker" "start" "-a" "fd085fb6cf36d9deb2a692df17044aa4655591bd1cc06c16aad114b9954633ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd085fb6cf36d9deb2a692df17044aa4655591bd1cc06c16aad114b9954633ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd085fb6cf36d9deb2a692df17044aa4655591bd1cc06c16aad114b9954633ff", kill_on_drop: false }`
[INFO] [stdout] fd085fb6cf36d9deb2a692df17044aa4655591bd1cc06c16aad114b9954633ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c891032440d73acfbdffb729140b68e30ee2436404dd05ef2344dc88943c2304
[INFO] running `Command { std: "docker" "start" "-a" "c891032440d73acfbdffb729140b68e30ee2436404dd05ef2344dc88943c2304", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling gexiv2-sys v1.1.1
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling rexiv2 v0.8.0
[INFO] [stderr]    Compiling console v0.9.1
[INFO] [stderr]    Compiling indicatif v0.13.0
[INFO] [stderr]    Compiling whitewash v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:93:11
[INFO] [stdout]    |
[INFO] [stdout] 93 |           &bad_files.push(file);
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         &matches.push("EXIF".to_string());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         &matches.push("IPTC".to_string());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         &matches.push("XMP".to_string());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:171:11
[INFO] [stdout]     |
[INFO] [stdout] 171 |           &matches.push("Geo".to_string());
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.23s
[INFO] running `Command { std: "docker" "inspect" "c891032440d73acfbdffb729140b68e30ee2436404dd05ef2344dc88943c2304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c891032440d73acfbdffb729140b68e30ee2436404dd05ef2344dc88943c2304", kill_on_drop: false }`
[INFO] [stdout] c891032440d73acfbdffb729140b68e30ee2436404dd05ef2344dc88943c2304
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0d4ecef198620c8f970102ecf603532feb179f6967ef7d23d99970f1ec07868
[INFO] running `Command { std: "docker" "start" "-a" "c0d4ecef198620c8f970102ecf603532feb179f6967ef7d23d99970f1ec07868", kill_on_drop: false }`
[INFO] [stderr]    Compiling whitewash v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:93:11
[INFO] [stdout]    |
[INFO] [stdout] 93 |           &bad_files.push(file);
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         &matches.push("EXIF".to_string());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         &matches.push("IPTC".to_string());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         &matches.push("XMP".to_string());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/main.rs:171:11
[INFO] [stdout]     |
[INFO] [stdout] 171 |           &matches.push("Geo".to_string());
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "c0d4ecef198620c8f970102ecf603532feb179f6967ef7d23d99970f1ec07868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d4ecef198620c8f970102ecf603532feb179f6967ef7d23d99970f1ec07868", kill_on_drop: false }`
[INFO] [stdout] c0d4ecef198620c8f970102ecf603532feb179f6967ef7d23d99970f1ec07868
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e39b6641b31101fd86ea4406680c09d9fb118ff5acdda1280fd3d72829ea58f
[INFO] running `Command { std: "docker" "start" "-a" "8e39b6641b31101fd86ea4406680c09d9fb118ff5acdda1280fd3d72829ea58f", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/main.rs:93:11
[INFO] [stderr]    |
[INFO] [stderr] 93 |           &bad_files.push(file);
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/main.rs:161:9
[INFO] [stderr]     |
[INFO] [stderr] 161 |         &matches.push("EXIF".to_string());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/main.rs:164:9
[INFO] [stderr]     |
[INFO] [stderr] 164 |         &matches.push("IPTC".to_string());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/main.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 |         &matches.push("XMP".to_string());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/main.rs:171:11
[INFO] [stderr]     |
[INFO] [stderr] 171 |           &matches.push("Geo".to_string());
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `whitewash` (bin "whitewash" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/whitewash-b6120500f8c7cd2a)
[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" "8e39b6641b31101fd86ea4406680c09d9fb118ff5acdda1280fd3d72829ea58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e39b6641b31101fd86ea4406680c09d9fb118ff5acdda1280fd3d72829ea58f", kill_on_drop: false }`
[INFO] [stdout] 8e39b6641b31101fd86ea4406680c09d9fb118ff5acdda1280fd3d72829ea58f