[INFO] fetching crate distinct 0.1.1...
[INFO] checking distinct-0.1.1 against master#52d8c490a3aabe65cdd9f2d3aed95034dd5dbad7 for pr-113312
[INFO] extracting crate distinct 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate distinct 0.1.1 on toolchain 52d8c490a3aabe65cdd9f2d3aed95034dd5dbad7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52d8c490a3aabe65cdd9f2d3aed95034dd5dbad7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate distinct 0.1.1
[INFO] finished tweaking crates.io crate distinct 0.1.1
[INFO] tweaked toml for crates.io crate distinct 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52d8c490a3aabe65cdd9f2d3aed95034dd5dbad7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52d8c490a3aabe65cdd9f2d3aed95034dd5dbad7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+52d8c490a3aabe65cdd9f2d3aed95034dd5dbad7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8839742de407d9f20ad3ce324648f2c0554574ac26cce0893dfb8fdb2b8545b
[INFO] running `Command { std: "docker" "start" "-a" "d8839742de407d9f20ad3ce324648f2c0554574ac26cce0893dfb8fdb2b8545b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8839742de407d9f20ad3ce324648f2c0554574ac26cce0893dfb8fdb2b8545b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8839742de407d9f20ad3ce324648f2c0554574ac26cce0893dfb8fdb2b8545b", kill_on_drop: false }`
[INFO] [stdout] d8839742de407d9f20ad3ce324648f2c0554574ac26cce0893dfb8fdb2b8545b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+52d8c490a3aabe65cdd9f2d3aed95034dd5dbad7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 314962aef0dc09e19fadadc68e13c34c421cabef1b0d9ee90272e9bce9086f2e
[INFO] running `Command { std: "docker" "start" "-a" "314962aef0dc09e19fadadc68e13c34c421cabef1b0d9ee90272e9bce9086f2e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking distinct v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cross-crate traits with a default impl, like `Sync`, should not be specialized
[INFO] [stdout]   --> src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<T> !Sync for PairOfPhantoms<T, T> {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this will change its meaning in a future release!
[INFO] [stdout]    = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367>
[INFO] [stdout]    = note: `T` is mentioned multiple times
[INFO] [stdout] note: try using the same sequence of generic parameters as the struct definition
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PairOfPhantoms<T, U> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(suspicious_auto_trait_impls)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cross-crate traits with a default impl, like `Sync`, should not be specialized
[INFO] [stdout]   --> src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<T> !Sync for PairOfPhantoms<T, T> {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this will change its meaning in a future release!
[INFO] [stdout]    = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367>
[INFO] [stdout]    = note: `T` is mentioned multiple times
[INFO] [stdout] note: try using the same sequence of generic parameters as the struct definition
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PairOfPhantoms<T, U> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(suspicious_auto_trait_impls)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "314962aef0dc09e19fadadc68e13c34c421cabef1b0d9ee90272e9bce9086f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314962aef0dc09e19fadadc68e13c34c421cabef1b0d9ee90272e9bce9086f2e", kill_on_drop: false }`
[INFO] [stdout] 314962aef0dc09e19fadadc68e13c34c421cabef1b0d9ee90272e9bce9086f2e