[INFO] fetching crate saturn-patch 1.0.0...
[INFO] checking saturn-patch-1.0.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate saturn-patch 1.0.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate saturn-patch 1.0.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate saturn-patch 1.0.0
[INFO] finished tweaking crates.io crate saturn-patch 1.0.0
[INFO] tweaked toml for crates.io crate saturn-patch 1.0.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate crates.io crate saturn-patch 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dee213136e1516e280f47e5b76f8cc1d2b26c49af3fbfba3a16a8d2ec398a09b
[INFO] running `Command { std: "docker" "start" "-a" "dee213136e1516e280f47e5b76f8cc1d2b26c49af3fbfba3a16a8d2ec398a09b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dee213136e1516e280f47e5b76f8cc1d2b26c49af3fbfba3a16a8d2ec398a09b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dee213136e1516e280f47e5b76f8cc1d2b26c49af3fbfba3a16a8d2ec398a09b", kill_on_drop: false }`
[INFO] [stdout] dee213136e1516e280f47e5b76f8cc1d2b26c49af3fbfba3a16a8d2ec398a09b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 668959ce8c026636a0a7255821e57c9c531bdde8cb002b8f09af14ae38985ae1
[INFO] running `Command { std: "docker" "start" "-a" "668959ce8c026636a0a7255821e57c9c531bdde8cb002b8f09af14ae38985ae1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking hmac-sha256 v0.1.6
[INFO] [stderr]     Checking saturn-patch v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:236:17
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(&self.desired_mfr_bytes);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 let _ = &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(&self.desired_mfr_bytes);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:240:17
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(&new_region);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let _ = &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(&new_region);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:248:21
[INFO] [stdout]     |
[INFO] [stdout] 248 |                     &bytes[string_offset..(string_offset + REGION_STRING_LEN)].copy_from_slice(new_region_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 248 |                     let _ = &bytes[string_offset..(string_offset + REGION_STRING_LEN)].copy_from_slice(new_region_string);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:361:13
[INFO] [stdout]     |
[INFO] [stdout] 361 |             &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(manufacturer);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 361 |             let _ = &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(manufacturer);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |             &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(regions);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 362 |             let _ = &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(regions);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 | ...   &bytes[first_region_string_index..(first_region_string_index + (region_count * REGION_STRING_LEN))].copy_from_slice(region_strings);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 363 |             let _ = &bytes[first_region_string_index..(first_region_string_index + (region_count * REGION_STRING_LEN))].copy_from_slice(region_strings);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cdrom.rs:374:21
[INFO] [stdout]     |
[INFO] [stdout] 374 |                     &buffer[0..src.len()].copy_from_slice(src);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 374 |                     let _ = &buffer[0..src.len()].copy_from_slice(src);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:236:17
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(&self.desired_mfr_bytes);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 let _ = &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(&self.desired_mfr_bytes);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:240:17
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(&new_region);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let _ = &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(&new_region);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:248:21
[INFO] [stdout]     |
[INFO] [stdout] 248 |                     &bytes[string_offset..(string_offset + REGION_STRING_LEN)].copy_from_slice(new_region_string);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 248 |                     let _ = &bytes[string_offset..(string_offset + REGION_STRING_LEN)].copy_from_slice(new_region_string);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:361:13
[INFO] [stdout]     |
[INFO] [stdout] 361 |             &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(manufacturer);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 361 |             let _ = &bytes[(header_offset + 16)..(header_offset + 32)].copy_from_slice(manufacturer);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |             &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(regions);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 362 |             let _ = &bytes[(header_offset + 64)..(header_offset + 80)].copy_from_slice(regions);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 | ...   &bytes[first_region_string_index..(first_region_string_index + (region_count * REGION_STRING_LEN))].copy_from_slice(region_strings);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 363 |             let _ = &bytes[first_region_string_index..(first_region_string_index + (region_count * REGION_STRING_LEN))].copy_from_slice(region_strings);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cdrom.rs:374:21
[INFO] [stdout]     |
[INFO] [stdout] 374 |                     &buffer[0..src.len()].copy_from_slice(src);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 374 |                     let _ = &buffer[0..src.len()].copy_from_slice(src);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "668959ce8c026636a0a7255821e57c9c531bdde8cb002b8f09af14ae38985ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668959ce8c026636a0a7255821e57c9c531bdde8cb002b8f09af14ae38985ae1", kill_on_drop: false }`
[INFO] [stdout] 668959ce8c026636a0a7255821e57c9c531bdde8cb002b8f09af14ae38985ae1