[INFO] fetching crate legal_chess 0.4.42...
[INFO] checking legal_chess-0.4.42 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate legal_chess 0.4.42 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate legal_chess 0.4.42
[INFO] finished tweaking crates.io crate legal_chess 0.4.42
[INFO] tweaked toml for crates.io crate legal_chess 0.4.42 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate legal_chess 0.4.42 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d98d776923f7438039864bab9364e005f3716b614da2dcb12dec06aeed43440d
[INFO] running `Command { std: "docker" "start" "-a" "d98d776923f7438039864bab9364e005f3716b614da2dcb12dec06aeed43440d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d98d776923f7438039864bab9364e005f3716b614da2dcb12dec06aeed43440d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98d776923f7438039864bab9364e005f3716b614da2dcb12dec06aeed43440d", kill_on_drop: false }`
[INFO] [stdout] d98d776923f7438039864bab9364e005f3716b614da2dcb12dec06aeed43440d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02680d22bbbcf002b9bcc26c2aaa79cd86883142f3e3ca8809b4fb90a7b66da9
[INFO] running `Command { std: "docker" "start" "-a" "02680d22bbbcf002b9bcc26c2aaa79cd86883142f3e3ca8809b4fb90a7b66da9", kill_on_drop: false }`
[INFO] [stderr]     Checking legal_chess v0.4.42 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/attack.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  8 |     board: &board::Board,
[INFO] [stdout]    |            ^^^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 11 | ) -> AttackedBoard {
[INFO] [stdout]    |      ------------- the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 11 | ) -> AttackedBoard<'_> {
[INFO] [stdout]    |                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/board.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn iter(&self) -> slice::Iter<Vec<Option<Box<dyn piece::Piece>>>> {
[INFO] [stdout]    |                 ^^^^^     ----------------------------------------------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn iter(&self) -> slice::Iter<'_, Vec<Option<Box<dyn piece::Piece>>>> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/attack.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  8 |     board: &board::Board,
[INFO] [stdout]    |            ^^^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 11 | ) -> AttackedBoard {
[INFO] [stdout]    |      ------------- the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 11 | ) -> AttackedBoard<'_> {
[INFO] [stdout]    |                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/board.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn iter(&self) -> slice::Iter<Vec<Option<Box<dyn piece::Piece>>>> {
[INFO] [stdout]    |                 ^^^^^     ----------------------------------------------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn iter(&self) -> slice::Iter<'_, Vec<Option<Box<dyn piece::Piece>>>> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "02680d22bbbcf002b9bcc26c2aaa79cd86883142f3e3ca8809b4fb90a7b66da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02680d22bbbcf002b9bcc26c2aaa79cd86883142f3e3ca8809b4fb90a7b66da9", kill_on_drop: false }`
[INFO] [stdout] 02680d22bbbcf002b9bcc26c2aaa79cd86883142f3e3ca8809b4fb90a7b66da9