[INFO] fetching crate backdrop_arc 0.3.0...
[INFO] testing backdrop_arc-0.3.0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate backdrop_arc 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate backdrop_arc 0.3.0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backdrop_arc 0.3.0
[INFO] finished tweaking crates.io crate backdrop_arc 0.3.0
[INFO] tweaked toml for crates.io crate backdrop_arc 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unsize v1.1.0
[INFO] [stderr]   Downloaded triomphe v0.1.11
[INFO] [stderr]   Downloaded backdrop v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bbfb47658462b7fbcddbcb1844acb04df9464f7a0e7a0cfe5e510574f57628e
[INFO] running `Command { std: "docker" "start" "-a" "2bbfb47658462b7fbcddbcb1844acb04df9464f7a0e7a0cfe5e510574f57628e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bbfb47658462b7fbcddbcb1844acb04df9464f7a0e7a0cfe5e510574f57628e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bbfb47658462b7fbcddbcb1844acb04df9464f7a0e7a0cfe5e510574f57628e", kill_on_drop: false }`
[INFO] [stdout] 2bbfb47658462b7fbcddbcb1844acb04df9464f7a0e7a0cfe5e510574f57628e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e607ab798e7138f86c1b51c9ca060277f85b2402153f52a8aabbe99a1ee16405
[INFO] running `Command { std: "docker" "start" "-a" "e607ab798e7138f86c1b51c9ca060277f85b2402153f52a8aabbe99a1ee16405", kill_on_drop: false }`
[INFO] [stderr]    Compiling backdrop v0.1.11
[INFO] [stderr]    Compiling backdrop_arc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arc.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         this.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] 294 |         std::ptr::addr_eq(this.ptr(), other.ptr())
[INFO] [stdout]     |         ++++++++++++++++++          ~            +
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 294 |         std::ptr::eq(this.ptr(), other.ptr())
[INFO] [stdout]     |         +++++++++++++          ~            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "e607ab798e7138f86c1b51c9ca060277f85b2402153f52a8aabbe99a1ee16405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e607ab798e7138f86c1b51c9ca060277f85b2402153f52a8aabbe99a1ee16405", kill_on_drop: false }`
[INFO] [stdout] e607ab798e7138f86c1b51c9ca060277f85b2402153f52a8aabbe99a1ee16405
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ca5599b57ef6868fbca7adf40141419a275a1dc73f4fdc43aaa3cffef10c389
[INFO] running `Command { std: "docker" "start" "-a" "1ca5599b57ef6868fbca7adf40141419a275a1dc73f4fdc43aaa3cffef10c389", kill_on_drop: false }`
[INFO] [stderr]    Compiling backdrop_arc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arc.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         this.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] 294 |         std::ptr::addr_eq(this.ptr(), other.ptr())
[INFO] [stdout]     |         ++++++++++++++++++          ~            +
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 294 |         std::ptr::eq(this.ptr(), other.ptr())
[INFO] [stdout]     |         +++++++++++++          ~            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arc.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         this.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] 294 |         std::ptr::addr_eq(this.ptr(), other.ptr())
[INFO] [stdout]     |         ++++++++++++++++++          ~            +
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 294 |         std::ptr::eq(this.ptr(), other.ptr())
[INFO] [stdout]     |         +++++++++++++          ~            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "1ca5599b57ef6868fbca7adf40141419a275a1dc73f4fdc43aaa3cffef10c389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ca5599b57ef6868fbca7adf40141419a275a1dc73f4fdc43aaa3cffef10c389", kill_on_drop: false }`
[INFO] [stdout] 1ca5599b57ef6868fbca7adf40141419a275a1dc73f4fdc43aaa3cffef10c389
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52f66da268ce3a0e7ea4b9e8bb7df79fe49f739fe71e23ad23dcc39d44e951ff
[INFO] running `Command { std: "docker" "start" "-a" "52f66da268ce3a0e7ea4b9e8bb7df79fe49f739fe71e23ad23dcc39d44e951ff", kill_on_drop: false }`
[INFO] [stderr] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stderr]    --> src/arc.rs:294:9
[INFO] [stderr]     |
[INFO] [stderr] 294 |         this.ptr() == other.ptr()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stderr] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stderr]     |
[INFO] [stderr] 294 |         std::ptr::addr_eq(this.ptr(), other.ptr())
[INFO] [stderr]     |         ++++++++++++++++++          ~            +
[INFO] [stderr] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stderr]     |
[INFO] [stderr] 294 |         std::ptr::eq(this.ptr(), other.ptr())
[INFO] [stderr]     |         +++++++++++++          ~            +
[INFO] [stderr] 
[INFO] [stderr] warning: `backdrop_arc` (lib) generated 1 warning
[INFO] [stderr] warning: `backdrop_arc` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/backdrop_arc-0bbe81ac7210c7c6)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test arc::tests::roundtrip ... ok
[INFO] [stdout] test arc::tests::try_unwrap ... ok
[INFO] [stdout] test arc::tests::roundtrip_slice ... ok
[INFO] [stdout] test header::tests::from_header_and_iter_smoke ... ok
[INFO] [stdout] test header::tests::issue_13_empty ... ok
[INFO] [stdout] test header::tests::from_header_and_iter_empty ... ok
[INFO] [stdout] test header::tests::from_header_and_slice_empty ... ok
[INFO] [stdout] test header::tests::from_header_and_vec_empty ... ok
[INFO] [stdout] test header::tests::from_box_and_vec ... ok
[INFO] [stdout] test unique_arc::tests::try_from_arc ... ok
[INFO] [stdout] test arc::tests::maybeuninit_array ... ok
[INFO] [stdout] test header::tests::from_header_and_slice_smoke ... ok
[INFO] [stdout] test unique_arc::tests::unique_into_inner ... ok
[INFO] [stdout] test header::tests::from_header_and_str_smoke ... ok
[INFO] [stdout] test header::tests::from_header_and_vec_smoke ... ok
[INFO] [stdout] test header::tests::issue_13_consumption ... ok
[INFO] [stdout] test arc::tests::from_iterator_exact_size ... ok
[INFO] [stdout] test header::tests::erase_and_create_from_thin_air_header ... ok
[INFO] [stdout] test arc::tests::maybeuninit ... ok
[INFO] [stdout] test arc::tests::from_iterator_unknown_size ... ok
[INFO] [stdout] test unique_arc::tests::maybeuninit_smoke ... ok
[INFO] [stdout] test arc::tests::maybeuninit_ub_to_proceed - should panic ... ok
[INFO] [stdout] test arc::tests::maybeuninit_slice_ub_to_proceed - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests backdrop_arc
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/arc.rs - arc::Arc (line 63) ... ok
[INFO] [stdout] test src/arc.rs - arc::Arc<T,S>::try_unwrap (line 183) ... ok
[INFO] [stdout] test src/arc.rs - arc::Arc<T,S>::clone_many (line 636) ... ok
[INFO] [stdout] test src/arc.rs - arc::Arc<T,S>::try_unique (line 766) ... ok
[INFO] [stdout] test src/arc.rs - arc::Arc<T,S>::clone_many (line 625) ... ok
[INFO] [stdout] test src/unique_arc.rs - unique_arc::UniqueArc (line 35) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "52f66da268ce3a0e7ea4b9e8bb7df79fe49f739fe71e23ad23dcc39d44e951ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f66da268ce3a0e7ea4b9e8bb7df79fe49f739fe71e23ad23dcc39d44e951ff", kill_on_drop: false }`
[INFO] [stdout] 52f66da268ce3a0e7ea4b9e8bb7df79fe49f739fe71e23ad23dcc39d44e951ff
