[INFO] fetching crate enum-set 0.0.8...
[INFO] checking enum-set-0.0.8 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate enum-set 0.0.8 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate enum-set 0.0.8 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enum-set 0.0.8
[INFO] finished tweaking crates.io crate enum-set 0.0.8
[INFO] tweaked toml for crates.io crate enum-set 0.0.8 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 409b074eee570b923ebadd82219e42dd3d5b84d06eecf36a45fe146da6e88451
[INFO] running `Command { std: "docker" "start" "-a" "409b074eee570b923ebadd82219e42dd3d5b84d06eecf36a45fe146da6e88451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "409b074eee570b923ebadd82219e42dd3d5b84d06eecf36a45fe146da6e88451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409b074eee570b923ebadd82219e42dd3d5b84d06eecf36a45fe146da6e88451", kill_on_drop: false }`
[INFO] [stdout] 409b074eee570b923ebadd82219e42dd3d5b84d06eecf36a45fe146da6e88451
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 579c96a42e71126c611c8a74a3142c38a15a09503abac7488eb652818d7b0f7f
[INFO] running `Command { std: "docker" "start" "-a" "579c96a42e71126c611c8a74a3142c38a15a09503abac7488eb652818d7b0f7f", kill_on_drop: false }`
[INFO] [stderr]     Checking enum-set v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:75:24
[INFO] [stdout]    |
[INFO] [stdout] 75 |     unsafe fn from_u32(u32) -> Self;
[INFO] [stdout]    |                        ^^^ help: try naming the parameter or explicitly ignoring it: `_: u32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:75:24
[INFO] [stdout]    |
[INFO] [stdout] 75 |     unsafe fn from_u32(u32) -> Self;
[INFO] [stdout]    |                        ^^^ help: try naming the parameter or explicitly ignoring it: `_: u32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "579c96a42e71126c611c8a74a3142c38a15a09503abac7488eb652818d7b0f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "579c96a42e71126c611c8a74a3142c38a15a09503abac7488eb652818d7b0f7f", kill_on_drop: false }`
[INFO] [stdout] 579c96a42e71126c611c8a74a3142c38a15a09503abac7488eb652818d7b0f7f