[INFO] fetching crate reffers 0.6.1...
[INFO] testing reffers-0.6.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate reffers 0.6.1 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate reffers 0.6.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reffers 0.6.1
[INFO] finished tweaking crates.io crate reffers 0.6.1
[INFO] tweaked toml for crates.io crate reffers 0.6.1 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 124d4669fba4a3fec32e78fce7e3df8ca44bf278ada72a673764e9887bd47229
[INFO] running `Command { std: "docker" "start" "-a" "124d4669fba4a3fec32e78fce7e3df8ca44bf278ada72a673764e9887bd47229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "124d4669fba4a3fec32e78fce7e3df8ca44bf278ada72a673764e9887bd47229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124d4669fba4a3fec32e78fce7e3df8ca44bf278ada72a673764e9887bd47229", kill_on_drop: false }`
[INFO] [stdout] 124d4669fba4a3fec32e78fce7e3df8ca44bf278ada72a673764e9887bd47229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ab3a682f5456145143045bf861fd1a2e17e93d5a514b141c76cb4a9b1298320
[INFO] running `Command { std: "docker" "start" "-a" "6ab3a682f5456145143045bf861fd1a2e17e93d5a514b141c76cb4a9b1298320", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling reffers v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "6ab3a682f5456145143045bf861fd1a2e17e93d5a514b141c76cb4a9b1298320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ab3a682f5456145143045bf861fd1a2e17e93d5a514b141c76cb4a9b1298320", kill_on_drop: false }`
[INFO] [stdout] 6ab3a682f5456145143045bf861fd1a2e17e93d5a514b141c76cb4a9b1298320
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6db1ac35411435a80210d2a9d36f360ba51cbaba4d177473bd19d15044878b05
[INFO] running `Command { std: "docker" "start" "-a" "6db1ac35411435a80210d2a9d36f360ba51cbaba4d177473bd19d15044878b05", kill_on_drop: false }`
[INFO] [stderr]    Compiling reffers v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "6db1ac35411435a80210d2a9d36f360ba51cbaba4d177473bd19d15044878b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6db1ac35411435a80210d2a9d36f360ba51cbaba4d177473bd19d15044878b05", kill_on_drop: false }`
[INFO] [stdout] 6db1ac35411435a80210d2a9d36f360ba51cbaba4d177473bd19d15044878b05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1eb11f8f01b8874db7117e950191601ebadd41c8c51614a0bc3179671c27d7fa
[INFO] running `Command { std: "docker" "start" "-a" "1eb11f8f01b8874db7117e950191601ebadd41c8c51614a0bc3179671c27d7fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/reffers-ab81268425b330a8)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test aref::debug_impl ... ok
[INFO] [stdout] test arc::arc_drop ... ok
[INFO] [stdout] test arc::arc_basic ... ok
[INFO] [stdout] test arc::arc_str ... ok
[INFO] [stdout] test aref::verify_descended_types ... ok
[INFO] [stdout] test aref::countdown_example ... ok
[INFO] [stdout] test arc::arc_slice ... ok
[INFO] [stdout] test aref::verify_drop ... ok
[INFO] [stdout] test rc::rc_basic ... ok
[INFO] [stdout] test arc::arc_send ... ok
[INFO] [stdout] test aref::verify_types ... ok
[INFO] [stdout] test rc::rc_drop ... ok
[INFO] [stdout] test rc::rc_hashmap ... 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 rmba::rmba_arc ... 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 rmba::rmba_typical ... ok
[INFO] [stdout] test rmba::rmba_unaligned - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reffers
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/aref.rs - aref::ARef::new (line 423) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef (line 155) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefs::new (line 496) ... ok
[INFO] [stdout] test src/rmba.rs - rmba::RMBA (line 60) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefss::map (line 560) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefss::try_map (line 572) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefss::new (line 544) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefs::try_map (line 524) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef::descend_from (line 377) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef::try_map (line 479) ... ok
[INFO] [stdout] test src/rc.rs - rc (line 47) ... ok
[INFO] [stdout] test src/arc.rs - arc (line 7) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARef::map (line 464) ... ok
[INFO] [stdout] test src/rc_bitmask.rs - rc_bit_mask (line 83) ... ok
[INFO] [stdout] test src/rc.rs - rc::Ref (line 510) ... ok
[INFO] [stdout] test src/aref.rs - aref::ARefs::map (line 512) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1eb11f8f01b8874db7117e950191601ebadd41c8c51614a0bc3179671c27d7fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb11f8f01b8874db7117e950191601ebadd41c8c51614a0bc3179671c27d7fa", kill_on_drop: false }`
[INFO] [stdout] 1eb11f8f01b8874db7117e950191601ebadd41c8c51614a0bc3179671c27d7fa