[INFO] fetching crate observe 1.2.0...
[INFO] checking observe-1.2.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate observe 1.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate observe 1.2.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate observe 1.2.0
[INFO] finished tweaking crates.io crate observe 1.2.0
[INFO] tweaked toml for crates.io crate observe 1.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 44 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding mockall_derive v0.11.4 (latest: v0.13.0)
[INFO] [stderr]       Adding predicates v2.1.5 (latest: v3.1.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] [stderr]       Adding termtree v0.4.1 (latest: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enclose v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b52f31f3daaec37f36297079f06fd034c537e3129f8d6478545a4c2dc711f11
[INFO] running `Command { std: "docker" "start" "-a" "1b52f31f3daaec37f36297079f06fd034c537e3129f8d6478545a4c2dc711f11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b52f31f3daaec37f36297079f06fd034c537e3129f8d6478545a4c2dc711f11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b52f31f3daaec37f36297079f06fd034c537e3129f8d6478545a4c2dc711f11", kill_on_drop: false }`
[INFO] [stdout] 1b52f31f3daaec37f36297079f06fd034c537e3129f8d6478545a4c2dc711f11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afbab84e12377c93111e7cb1e05c5e8598e7108d786a93b93deb470c9f494dae
[INFO] running `Command { std: "docker" "start" "-a" "afbab84e12377c93111e7cb1e05c5e8598e7108d786a93b93deb470c9f494dae", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking predicates-core v1.0.8
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.11
[INFO] [stderr]     Checking enclose v1.2.0
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking observe v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Rc::as_ptr(&self.ptr).eq(&Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 24 |         std::ptr::addr_eq(Rc::as_ptr(&self.ptr), Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         ++++++++++++++++++                     ~
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]    |
[INFO] [stdout] 24 |         std::ptr::eq(Rc::as_ptr(&self.ptr), Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         +++++++++++++                     ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Rc::as_ptr(&self.ptr).eq(&Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 24 |         std::ptr::addr_eq(Rc::as_ptr(&self.ptr), Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         ++++++++++++++++++                     ~
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]    |
[INFO] [stdout] 24 |         std::ptr::eq(Rc::as_ptr(&self.ptr), Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         +++++++++++++                     ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Rc::as_ptr(&self.ptr).cmp(&Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Rc::as_ptr(&self.ptr).cast::<()>().cmp(&Rc::as_ptr(&other.ptr).cast::<()>())
[INFO] [stdout]    |                              +++++++++++++                            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Rc::as_ptr(&self.ptr).cmp(&Rc::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Rc::as_ptr(&self.ptr).cast::<()>().cmp(&Rc::as_ptr(&other.ptr).cast::<()>())
[INFO] [stdout]    |                              +++++++++++++                            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Some(Rc::as_ptr(&self.ptr).cmp(&Rc::as_ptr(&other.ptr)))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Some(Rc::as_ptr(&self.ptr).cast::<()>().cmp(&Rc::as_ptr(&other.ptr).cast::<()>()))
[INFO] [stdout]    |                                   +++++++++++++                            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Some(Rc::as_ptr(&self.ptr).cmp(&Rc::as_ptr(&other.ptr)))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Some(Rc::as_ptr(&self.ptr).cast::<()>().cmp(&Rc::as_ptr(&other.ptr).cast::<()>()))
[INFO] [stdout]    |                                   +++++++++++++                            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:61:3
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Weak::as_ptr(&self.ptr).eq(&Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 61 |         std::ptr::addr_eq(Weak::as_ptr(&self.ptr), Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         ++++++++++++++++++                       ~
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]    |
[INFO] [stdout] 61 |         std::ptr::eq(Weak::as_ptr(&self.ptr), Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         +++++++++++++                       ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:61:3
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Weak::as_ptr(&self.ptr).eq(&Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 61 |         std::ptr::addr_eq(Weak::as_ptr(&self.ptr), Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         ++++++++++++++++++                       ~
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]    |
[INFO] [stdout] 61 |         std::ptr::eq(Weak::as_ptr(&self.ptr), Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         +++++++++++++                       ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:69:3
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Weak::as_ptr(&self.ptr).cmp(&Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Weak::as_ptr(&self.ptr).cast::<()>().cmp(&Weak::as_ptr(&other.ptr).cast::<()>())
[INFO] [stdout]    |                                +++++++++++++                              +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Some(Weak::as_ptr(&self.ptr).cmp(&Weak::as_ptr(&other.ptr)))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Some(Weak::as_ptr(&self.ptr).cast::<()>().cmp(&Weak::as_ptr(&other.ptr).cast::<()>()))
[INFO] [stdout]    |                                     +++++++++++++                              +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:69:3
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Weak::as_ptr(&self.ptr).cmp(&Weak::as_ptr(&other.ptr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Weak::as_ptr(&self.ptr).cast::<()>().cmp(&Weak::as_ptr(&other.ptr).cast::<()>())
[INFO] [stdout]    |                                +++++++++++++                              +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]   --> src/addr.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Some(Weak::as_ptr(&self.ptr).cmp(&Weak::as_ptr(&other.ptr)))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Some(Weak::as_ptr(&self.ptr).cast::<()>().cmp(&Weak::as_ptr(&other.ptr).cast::<()>()))
[INFO] [stdout]    |                                     +++++++++++++                              +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `Command { std: "docker" "inspect" "afbab84e12377c93111e7cb1e05c5e8598e7108d786a93b93deb470c9f494dae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afbab84e12377c93111e7cb1e05c5e8598e7108d786a93b93deb470c9f494dae", kill_on_drop: false }`
[INFO] [stdout] afbab84e12377c93111e7cb1e05c5e8598e7108d786a93b93deb470c9f494dae