[INFO] updating cached repository https://github.com/matsueushi/audacity-tag-downloader [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] f08ffebc749d1eb24ab0e82a2cafb74f83e33bc5 [INFO] checking matsueushi/audacity-tag-downloader against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsueushi%2Faudacity-tag-downloader" "work/builds/worker-2/source"` [INFO] [stderr] Cloning into 'work/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/matsueushi/audacity-tag-downloader on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/matsueushi/audacity-tag-downloader [INFO] finished tweaking git repo https://github.com/matsueushi/audacity-tag-downloader [INFO] tweaked toml for git repo https://github.com/matsueushi/audacity-tag-downloader written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/matsueushi/audacity-tag-downloader already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 1e2202ab06b3c5693d1a6883f630e4c90472ce50658cb0dad6d660d746a895a9 [INFO] running `"docker" "start" "-a" "1e2202ab06b3c5693d1a6883f630e4c90472ce50658cb0dad6d660d746a895a9"` [INFO] [stderr] Checking itertools v0.5.10 [INFO] [stderr] Compiling syn v0.15.14 [INFO] [stderr] Checking hyper v0.10.15 [INFO] [stderr] Checking serde_json v0.9.10 [INFO] [stderr] Checking hyper-native-tls v0.2.4 [INFO] [stderr] Checking discogs v0.3.1 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling failure_derive v0.1.3 [INFO] [stderr] Checking failure v0.1.3 [INFO] [stderr] Checking dotenv v0.13.0 [INFO] [stderr] Checking quick-xml v0.12.4 [INFO] [stderr] Checking audacity-tag-downloader v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/main.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | writer.write_event(Event::Decl(decl)).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/main.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | / writer [INFO] [stderr] 57 | | .write_event(Event::Start(BytesStart::borrowed_name(b"tags"))) [INFO] [stderr] 58 | | .is_ok(); [INFO] [stderr] | |_________________^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/main.rs:82:13 [INFO] [stderr] | [INFO] [stderr] 82 | / writer_t [INFO] [stderr] 83 | | .write_event(Event::End(BytesEnd::borrowed(b"tags"))) [INFO] [stderr] 84 | | .is_ok(); [INFO] [stderr] | |_________________________^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:115:21 [INFO] [stderr] | [INFO] [stderr] 115 | file.write_all(&song_data.xml); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/main.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | writer.write_event(Event::Decl(decl)).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/main.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | / writer [INFO] [stderr] 57 | | .write_event(Event::Start(BytesStart::borrowed_name(b"tags"))) [INFO] [stderr] 58 | | .is_ok(); [INFO] [stderr] | |_________________^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/main.rs:82:13 [INFO] [stderr] | [INFO] [stderr] 82 | / writer_t [INFO] [stderr] 83 | | .write_event(Event::End(BytesEnd::borrowed(b"tags"))) [INFO] [stderr] 84 | | .is_ok(); [INFO] [stderr] | |_________________________^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:115:21 [INFO] [stderr] | [INFO] [stderr] 115 | file.write_all(&song_data.xml); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.49s [INFO] running `"docker" "inspect" "1e2202ab06b3c5693d1a6883f630e4c90472ce50658cb0dad6d660d746a895a9"` [INFO] running `"docker" "rm" "-f" "1e2202ab06b3c5693d1a6883f630e4c90472ce50658cb0dad6d660d746a895a9"` [INFO] [stdout] 1e2202ab06b3c5693d1a6883f630e4c90472ce50658cb0dad6d660d746a895a9