[INFO] fetching crate hnefatafl 0.0.1...
[INFO] checking hnefatafl-0.0.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate hnefatafl 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate hnefatafl 0.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate hnefatafl 0.0.1
[INFO] tweaked toml for crates.io crate hnefatafl 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hnefatafl 0.0.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hnefatafl 0.0.1 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b92d7063b71d0be130eae3984aba53c65d2e69bbed1cc736432fe0bf6f4979a
[INFO] running `Command { std: "docker" "start" "-a" "2b92d7063b71d0be130eae3984aba53c65d2e69bbed1cc736432fe0bf6f4979a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b92d7063b71d0be130eae3984aba53c65d2e69bbed1cc736432fe0bf6f4979a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b92d7063b71d0be130eae3984aba53c65d2e69bbed1cc736432fe0bf6f4979a", kill_on_drop: false }`
[INFO] [stdout] 2b92d7063b71d0be130eae3984aba53c65d2e69bbed1cc736432fe0bf6f4979a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8638a2c5c53eacafd24115abb6afdca8171a28fb710ccfc9df26a9c5b3b03ef4
[INFO] running `Command { std: "docker" "start" "-a" "8638a2c5c53eacafd24115abb6afdca8171a28fb710ccfc9df26a9c5b3b03ef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking uint v0.10.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking primitive-types v0.13.1
[INFO] [stderr]     Checking hnefatafl v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/game/mod.rs:121:23
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn iter_plays(&self, tile: Tile) -> Result<PlayIterator<T>, BoardError> {
[INFO] [stdout]     |                       ^^^^^                        ---------------
[INFO] [stdout]     |                       |                            |
[INFO] [stdout]     |                       |                            the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       |                            the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn iter_plays(&self, tile: Tile) -> Result<PlayIterator<'_, T>, BoardError> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/game/mod.rs:121:23
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn iter_plays(&self, tile: Tile) -> Result<PlayIterator<T>, BoardError> {
[INFO] [stdout]     |                       ^^^^^                        ---------------
[INFO] [stdout]     |                       |                            |
[INFO] [stdout]     |                       |                            the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       |                            the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn iter_plays(&self, tile: Tile) -> Result<PlayIterator<'_, T>, BoardError> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.47s
[INFO] running `Command { std: "docker" "inspect" "8638a2c5c53eacafd24115abb6afdca8171a28fb710ccfc9df26a9c5b3b03ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8638a2c5c53eacafd24115abb6afdca8171a28fb710ccfc9df26a9c5b3b03ef4", kill_on_drop: false }`
[INFO] [stdout] 8638a2c5c53eacafd24115abb6afdca8171a28fb710ccfc9df26a9c5b3b03ef4