[INFO] fetching crate sync_wrapper 0.1.0...
[INFO] testing sync_wrapper-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate sync_wrapper 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sync_wrapper 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sync_wrapper 0.1.0
[INFO] finished tweaking crates.io crate sync_wrapper 0.1.0
[INFO] tweaked toml for crates.io crate sync_wrapper 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a3642bdcc4c7ad0f7ba68e5f33b873ecda441e1e2b66e1793ee2ffbdecc2217
[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" "3a3642bdcc4c7ad0f7ba68e5f33b873ecda441e1e2b66e1793ee2ffbdecc2217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a3642bdcc4c7ad0f7ba68e5f33b873ecda441e1e2b66e1793ee2ffbdecc2217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3642bdcc4c7ad0f7ba68e5f33b873ecda441e1e2b66e1793ee2ffbdecc2217", kill_on_drop: false }`
[INFO] [stdout] 3a3642bdcc4c7ad0f7ba68e5f33b873ecda441e1e2b66e1793ee2ffbdecc2217
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab68de8bab0644236b592e95a7db928836c03eceb451e3f1cc41c99843bfa68e
[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" "ab68de8bab0644236b592e95a7db928836c03eceb451e3f1cc41c99843bfa68e", kill_on_drop: false }`
[INFO] [stderr]    Compiling sync_wrapper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "ab68de8bab0644236b592e95a7db928836c03eceb451e3f1cc41c99843bfa68e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab68de8bab0644236b592e95a7db928836c03eceb451e3f1cc41c99843bfa68e", kill_on_drop: false }`
[INFO] [stdout] ab68de8bab0644236b592e95a7db928836c03eceb451e3f1cc41c99843bfa68e
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef8af4aa90426ad91e6b6692643c1c328e227ca0bc2ba98f067480fb1b192af5
[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" "ef8af4aa90426ad91e6b6692643c1c328e227ca0bc2ba98f067480fb1b192af5", kill_on_drop: false }`
[INFO] [stderr]    Compiling sync_wrapper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "ef8af4aa90426ad91e6b6692643c1c328e227ca0bc2ba98f067480fb1b192af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef8af4aa90426ad91e6b6692643c1c328e227ca0bc2ba98f067480fb1b192af5", kill_on_drop: false }`
[INFO] [stdout] ef8af4aa90426ad91e6b6692643c1c328e227ca0bc2ba98f067480fb1b192af5
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da61b4172f11c5222be4e5ff9779135f088b5721f8a17b7d8166d6df7c4ce34e
[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" "da61b4172f11c5222be4e5ff9779135f088b5721f8a17b7d8166d6df7c4ce34e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sync_wrapper-64214898259b8d2f
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sync_wrapper
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - SyncWrapper (line 39) ... ok
[INFO] [stdout] test src/lib.rs - SyncWrapper<T>::get_mut (line 89) ... ok
[INFO] [stdout] test src/lib.rs - SyncWrapper<T>::into_inner (line 113) ... ok
[INFO] [stdout] test src/lib.rs - SyncWrapper<T>::new (line 68) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "da61b4172f11c5222be4e5ff9779135f088b5721f8a17b7d8166d6df7c4ce34e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da61b4172f11c5222be4e5ff9779135f088b5721f8a17b7d8166d6df7c4ce34e", kill_on_drop: false }`
[INFO] [stdout] da61b4172f11c5222be4e5ff9779135f088b5721f8a17b7d8166d6df7c4ce34e