[INFO] fetching crate reffers 0.6.0...
[INFO] testing reffers-0.6.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate reffers 0.6.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate reffers 0.6.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reffers 0.6.0
[INFO] finished tweaking crates.io crate reffers 0.6.0
[INFO] tweaked toml for crates.io crate reffers 0.6.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7f25fbd05df9ac21d1a8e8c338b4b3c480c0ae7eb42b446f54b66859f619e42
[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" "b7f25fbd05df9ac21d1a8e8c338b4b3c480c0ae7eb42b446f54b66859f619e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7f25fbd05df9ac21d1a8e8c338b4b3c480c0ae7eb42b446f54b66859f619e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f25fbd05df9ac21d1a8e8c338b4b3c480c0ae7eb42b446f54b66859f619e42", kill_on_drop: false }`
[INFO] [stdout] b7f25fbd05df9ac21d1a8e8c338b4b3c480c0ae7eb42b446f54b66859f619e42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", 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] bc11aa8896182eb39534c9a724e43885523e197f148025fce90e6f5674ad4d5f
[INFO] running `Command { std: "docker" "start" "-a" "bc11aa8896182eb39534c9a724e43885523e197f148025fce90e6f5674ad4d5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling reffers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rc.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |         write!(f, "{}", error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` 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 1.13s
[INFO] running `Command { std: "docker" "inspect" "bc11aa8896182eb39534c9a724e43885523e197f148025fce90e6f5674ad4d5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc11aa8896182eb39534c9a724e43885523e197f148025fce90e6f5674ad4d5f", kill_on_drop: false }`
[INFO] [stdout] bc11aa8896182eb39534c9a724e43885523e197f148025fce90e6f5674ad4d5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", 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] a00ee9d85d5bfea40716a7e7f483985a2877d8f1276da425a910b3cd80c411e7
[INFO] running `Command { std: "docker" "start" "-a" "a00ee9d85d5bfea40716a7e7f483985a2877d8f1276da425a910b3cd80c411e7", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rc.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |         write!(f, "{}", error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling reffers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rc.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |         write!(f, "{}", error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.08s
[INFO] running `Command { std: "docker" "inspect" "a00ee9d85d5bfea40716a7e7f483985a2877d8f1276da425a910b3cd80c411e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a00ee9d85d5bfea40716a7e7f483985a2877d8f1276da425a910b3cd80c411e7", kill_on_drop: false }`
[INFO] [stdout] a00ee9d85d5bfea40716a7e7f483985a2877d8f1276da425a910b3cd80c411e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 128b1f0995464fcc67c707dd0c4e364df758c3e2472f040dc8039021e6fdffac
[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" "128b1f0995464fcc67c707dd0c4e364df758c3e2472f040dc8039021e6fdffac", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/rc.rs:130:25
[INFO] [stderr]     |
[INFO] [stderr] 130 |         write!(f, "{}", error::Error::description(self))
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/rc.rs:130:25
[INFO] [stderr]     |
[INFO] [stderr] 130 |         write!(f, "{}", error::Error::description(self))
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/reffers-df4390289efef4c7
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test arc::arc_drop ... ok
[INFO] [stdout] test aref::verify_descended_types ... ok
[INFO] [stdout] test aref::verify_drop ... ok
[INFO] [stdout] test rc::rc_slice ... ok
[INFO] [stdout] test rc::rc_str ... ok
[INFO] [stdout] test rc_bitmask::bitmask ... ok
[INFO] [stdout] test aref::countdown_example ... ok
[INFO] [stdout] test arc::arc_str ... ok
[INFO] [stdout] test rmba::rmba_box ... ok
[INFO] [stdout] test rmba::rmba_fat ... ok
[INFO] [stdout] test rmba::rmba_sizes ... ok
[INFO] [stdout] test aref::debug_impl ... ok
[INFO] [stdout] test rc::rc_drop ... ok
[INFO] [stdout] test aref::verify_types ... ok
[INFO] [stdout] test arc::arc_slice ... ok
[INFO] [stdout] test rmba::rmba_arc ... ok
[INFO] [stdout] test arc::arc_basic ... ok
[INFO] [stdout] test rc::rc_basic ... ok
[INFO] [stdout] test rmba::rmba_typical ... ok
[INFO] [stdout] test arc::arc_send ... ok
[INFO] [stdout] test rc::rc_hashmap ... ok
[INFO] [stdout] test rmba::rmba_unaligned ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reffers
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/aref.rs - aref::ARefs::map (line 511) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefss::try_map (line 571) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefs::new (line 495) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefs::try_map (line 523) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefss::new (line 543) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef::map (line 463) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefss::map (line 559) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef::try_map (line 478) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef (line 154) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef::new (line 422) ... ok
[INFO] [stdout] test src/arc.rs - arc (line 7) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef::descend_from (line 376) ... ok
[INFO] [stdout] test src/rc.rs - rc (line 47) ... ok
[INFO] [stdout] test src/rmba.rs - rmba::RMBA (line 60) ... ok
[INFO] [stdout] test src/rc.rs - rc::Ref (line 507) ... ok
[INFO] [stdout] test src/rc_bitmask.rs - rc_bit_mask (line 83) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "128b1f0995464fcc67c707dd0c4e364df758c3e2472f040dc8039021e6fdffac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "128b1f0995464fcc67c707dd0c4e364df758c3e2472f040dc8039021e6fdffac", kill_on_drop: false }`
[INFO] [stdout] 128b1f0995464fcc67c707dd0c4e364df758c3e2472f040dc8039021e6fdffac