[INFO] fetching crate drc 0.1.2...
[INFO] testing drc-0.1.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate drc 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate drc 0.1.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drc 0.1.2
[INFO] finished tweaking crates.io crate drc 0.1.2
[INFO] tweaked toml for crates.io crate drc 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a008210293e085716c19cac733a1e7797b618c35c94a091fda3cf462efa0aad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3a008210293e085716c19cac733a1e7797b618c35c94a091fda3cf462efa0aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a008210293e085716c19cac733a1e7797b618c35c94a091fda3cf462efa0aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a008210293e085716c19cac733a1e7797b618c35c94a091fda3cf462efa0aad", kill_on_drop: false }`
[INFO] [stdout] 3a008210293e085716c19cac733a1e7797b618c35c94a091fda3cf462efa0aad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c3e855a44dae0d8b7367a94d78e8903aa42fe1b3236bfece8ad2db5ffe65e95
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8c3e855a44dae0d8b7367a94d78e8903aa42fe1b3236bfece8ad2db5ffe65e95", kill_on_drop: false }`
[INFO] [stderr]    Compiling drc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "8c3e855a44dae0d8b7367a94d78e8903aa42fe1b3236bfece8ad2db5ffe65e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c3e855a44dae0d8b7367a94d78e8903aa42fe1b3236bfece8ad2db5ffe65e95", kill_on_drop: false }`
[INFO] [stdout] 8c3e855a44dae0d8b7367a94d78e8903aa42fe1b3236bfece8ad2db5ffe65e95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 968f55d5bc3544930b2b9c610bda579f126cd82a813f94f2f612347c89220062
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "968f55d5bc3544930b2b9c610bda579f126cd82a813f94f2f612347c89220062", kill_on_drop: false }`
[INFO] [stderr]    Compiling drc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/drc.rs:2006:53
[INFO] [stdout]      |
[INFO] [stdout] 2006 |                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stdout]      |                                                     ^                  ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2006 -                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stdout] 2006 +                 let original_storage_ref = unsafe { &*original_storage };
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/drc.rs:2007:53
[INFO] [stdout]      |
[INFO] [stdout] 2007 |                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stdout]      |                                                     ^                  ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2007 -                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stdout] 2007 +                 let separate_storage_ref = unsafe { &*separate_storage };
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "968f55d5bc3544930b2b9c610bda579f126cd82a813f94f2f612347c89220062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968f55d5bc3544930b2b9c610bda579f126cd82a813f94f2f612347c89220062", kill_on_drop: false }`
[INFO] [stdout] 968f55d5bc3544930b2b9c610bda579f126cd82a813f94f2f612347c89220062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fae46e649e3c5871db2faabdcecf4ed1e601d194726836563de89becc7692d0
[INFO] running `Command { std: "docker" "start" "-a" "0fae46e649e3c5871db2faabdcecf4ed1e601d194726836563de89becc7692d0", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> src/drc.rs:2006:53
[INFO] [stderr]      |
[INFO] [stderr] 2006 |                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stderr]      |                                                     ^                  ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 2006 -                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stderr] 2006 +                 let original_storage_ref = unsafe { &*original_storage };
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> src/drc.rs:2007:53
[INFO] [stderr]      |
[INFO] [stderr] 2007 |                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stderr]      |                                                     ^                  ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 2007 -                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stderr] 2007 +                 let separate_storage_ref = unsafe { &*separate_storage };
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: `drc` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/drc-57647f2879ebaf8b)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test drc::tests::arc_ptr_eq ... ok
[INFO] [stdout] test drc::tests::detach ... ok
[INFO] [stdout] test drc::tests::display ... ok
[INFO] [stdout] test drc::tests::downgrade ... ok
[INFO] [stdout] test drc::tests::get_mut ... ok
[INFO] [stdout] test drc::tests::linked ... ok
[INFO] [stdout] test drc::tests::strong_count ... ok
[INFO] [stdout] test drc::tests::pointer ... ok
[INFO] [stdout] test drc::tests::try_unwrap ... ok
[INFO] [stdout] test drc::tests::weak_count ... ok
[INFO] [stdout] test weak::tests::clone ... ok
[INFO] [stdout] test weak::tests::debug ... ok
[INFO] [stdout] test weak::tests::detach ... ok
[INFO] [stdout] test weak::tests::drop ... ok
[INFO] [stdout] test weak::tests::new_and_default ... ok
[INFO] [stdout] test drc::tests::new ... ok
[INFO] [stdout] test weak::tests::upgrade ... ok
[INFO] [stdout] test weak::tests::with_weak_arc ... ok
[INFO] [stderr]    Doc-tests drc
[INFO] [stdout] test drc::tests::separate ... ok
[INFO] [stdout] test drc::tests::ptr_eq ... ok
[INFO] [stdout] test drc::tests::make_mut ... ok
[INFO] [stdout] test drc::tests::drop ... ok
[INFO] [stdout] test drc::tests::debug ... ok
[INFO] [stdout] test drc::tests::clone ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::eq (line 1049) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::ne (line 1066) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::gt (line 1144) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::downgrade (line 222) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::cmp (line 1024) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::default (line 887) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::linked (line 496) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::clone (line 759) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::get_mut (line 360) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::le (line 1126) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::ge (line 1162) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::drop (line 805) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::lt (line 1108) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::detach (line 88) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::arc_ptr_eq (line 452) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::make_mut (line 546) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::new (line 67) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::clone (line 336) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::partial_cmp (line 1088) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::weak_count (line 258) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::default (line 417) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::ptr_eq (line 403) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::strong_count (line 308) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::separate (line 120) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::drop (line 357) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::try_unwrap (line 150) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::new (line 87) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::detach (line 250) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::with_weak_arc (line 123) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::upgrade (line 173) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 11.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0fae46e649e3c5871db2faabdcecf4ed1e601d194726836563de89becc7692d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fae46e649e3c5871db2faabdcecf4ed1e601d194726836563de89becc7692d0", kill_on_drop: false }`
[INFO] [stdout] 0fae46e649e3c5871db2faabdcecf4ed1e601d194726836563de89becc7692d0