[INFO] fetching crate retsyn 0.1.4...
[INFO] checking retsyn-0.1.4 against try#ddcf048784667508cd676fef4667f88ae15628a3 for pr-148271
[INFO] extracting crate retsyn 0.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate retsyn 0.1.4
[INFO] finished tweaking crates.io crate retsyn 0.1.4
[INFO] tweaked toml for crates.io crate retsyn 0.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate retsyn 0.1.4 on toolchain ddcf048784667508cd676fef4667f88ae15628a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate retsyn 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da8ad158e616a515f928162c6a560e700a0e2c8337d7f978bba78086f968d9a7
[INFO] running `Command { std: "docker" "start" "-a" "da8ad158e616a515f928162c6a560e700a0e2c8337d7f978bba78086f968d9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da8ad158e616a515f928162c6a560e700a0e2c8337d7f978bba78086f968d9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da8ad158e616a515f928162c6a560e700a0e2c8337d7f978bba78086f968d9a7", kill_on_drop: false }`
[INFO] [stdout] da8ad158e616a515f928162c6a560e700a0e2c8337d7f978bba78086f968d9a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ddcf048784667508cd676fef4667f88ae15628a3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e2c11a51e99877c36befa059d3f0041c2d2acec8ac2a18b2b98595c098834e3
[INFO] running `Command { std: "docker" "start" "-a" "4e2c11a51e99877c36befa059d3f0041c2d2acec8ac2a18b2b98595c098834e3", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `indexed_at_time`
[INFO] [stdout]    --> src/fulltext_index.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |         let indexed_at_time = DateTime::from_utc(OffsetDateTime::now_utc());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_indexed_at_time`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `indexed_at_time`
[INFO] [stdout]    --> src/fulltext_index.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |         let indexed_at_time = DateTime::from_utc(OffsetDateTime::now_utc());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_indexed_at_time`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexEntryReceiver` is never used
[INFO] [stdout]   --> src/index_entry/index_entry.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) type IndexEntryReceiver = Receiver<IndexEntry>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]   --> src/search_result.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct SearchResult {
[INFO] [stdout]    |                   ------------ field in this struct
[INFO] [stdout] 16 |     source: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SearchResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexEntryReceiver` is never used
[INFO] [stdout]   --> src/index_entry/index_entry.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) type IndexEntryReceiver = Receiver<IndexEntry>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]   --> src/search_result.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct SearchResult {
[INFO] [stdout]    |                   ------------ field in this struct
[INFO] [stdout] 16 |     source: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SearchResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/search_result.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             open::with(path, "xdg-open");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let _ = open::with(path, "xdg-open");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/search_result.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         open::that(self.path.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let _ = open::that(self.path.clone());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/search_result.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             open::with(path, "xdg-open");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let _ = open::with(path, "xdg-open");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/search_result.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         open::that(self.path.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let _ = open::that(self.path.clone());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "4e2c11a51e99877c36befa059d3f0041c2d2acec8ac2a18b2b98595c098834e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e2c11a51e99877c36befa059d3f0041c2d2acec8ac2a18b2b98595c098834e3", kill_on_drop: false }`
[INFO] [stdout] 4e2c11a51e99877c36befa059d3f0041c2d2acec8ac2a18b2b98595c098834e3