[INFO] fetching crate ouroboros_examples 0.4.0...
[INFO] testing ouroboros_examples-0.4.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate ouroboros_examples 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ouroboros_examples 0.4.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ouroboros_examples 0.4.0
[INFO] finished tweaking crates.io crate ouroboros_examples 0.4.0
[INFO] tweaked toml for crates.io crate ouroboros_examples 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9b658dd677ccc7ff7e48ea4af7685f06f3e423f052e1545cd62c25c97e1b299
[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" "b9b658dd677ccc7ff7e48ea4af7685f06f3e423f052e1545cd62c25c97e1b299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9b658dd677ccc7ff7e48ea4af7685f06f3e423f052e1545cd62c25c97e1b299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9b658dd677ccc7ff7e48ea4af7685f06f3e423f052e1545cd62c25c97e1b299", kill_on_drop: false }`
[INFO] [stdout] b9b658dd677ccc7ff7e48ea4af7685f06f3e423f052e1545cd62c25c97e1b299
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddd587815fd8fb4453a62d2d2f89ac079cb2830f1f82b9010d9712688bda3fef
[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" "ddd587815fd8fb4453a62d2d2f89ac079cb2830f1f82b9010d9712688bda3fef", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling ouroboros_macro v0.4.0
[INFO] [stderr]    Compiling ouroboros v0.4.0
[INFO] [stderr]    Compiling ouroboros_examples v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.63s
[INFO] running `Command { std: "docker" "inspect" "ddd587815fd8fb4453a62d2d2f89ac079cb2830f1f82b9010d9712688bda3fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddd587815fd8fb4453a62d2d2f89ac079cb2830f1f82b9010d9712688bda3fef", kill_on_drop: false }`
[INFO] [stdout] ddd587815fd8fb4453a62d2d2f89ac079cb2830f1f82b9010d9712688bda3fef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 39eee1eb0a11a12b619e74c149a18b1cb817e375c8b431dd79fc1f92d6dccc54
[INFO] running `Command { std: "docker" "start" "-a" "39eee1eb0a11a12b619e74c149a18b1cb817e375c8b431dd79fc1f92d6dccc54", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]    Compiling ouroboros_examples v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 29.67s
[INFO] running `Command { std: "docker" "inspect" "39eee1eb0a11a12b619e74c149a18b1cb817e375c8b431dd79fc1f92d6dccc54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39eee1eb0a11a12b619e74c149a18b1cb817e375c8b431dd79fc1f92d6dccc54", kill_on_drop: false }`
[INFO] [stdout] 39eee1eb0a11a12b619e74c149a18b1cb817e375c8b431dd79fc1f92d6dccc54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] fc4958b8b141f378d04f492f67c6191711fd2f1b72347558fae787c1fc91ad15
[INFO] running `Command { std: "docker" "start" "-a" "fc4958b8b141f378d04f492f67c6191711fd2f1b72347558fae787c1fc91ad15", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ouroboros_examples-71b6c6ee77b63987
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test ok_tests::try_new_err ... ok
[INFO] [stdout] test ok_tests::into_heads ... ok
[INFO] [stdout] test ok_tests::try_new_recover_heads ... ok
[INFO] [stdout] test ok_tests::box_and_mut_ref ... ok
[INFO] [stdout] test ok_tests::try_new ... ok
[INFO] [stdout] test ok_tests::box_and_ref ... ok
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling ouroboros_macro v0.4.0
[INFO] [stderr]     Checking ouroboros v0.4.0
[INFO] [stderr]     Checking ouroboros_examples v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ouroboros_examples-tests v0.0.0 (/opt/rustwide/target/tests/ouroboros_examples)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.44s
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] test src/fail_tests/borrow_before_declaration.rs ... ok
[INFO] [stderr] test src/fail_tests/double_mutable_borrow.rs ... ok
[INFO] [stderr] test src/fail_tests/move_ref_outside_closure.rs ... ok
[INFO] [stderr] test src/fail_tests/use_after_free.rs ... ok
[INFO] [stdout] test ok_tests::compile_tests::fails_ok ... ok
[INFO] [stderr] test src/fail_tests/use_moved_ref_after_free.rs ... ok
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ouroboros_examples
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc4958b8b141f378d04f492f67c6191711fd2f1b72347558fae787c1fc91ad15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4958b8b141f378d04f492f67c6191711fd2f1b72347558fae787c1fc91ad15", kill_on_drop: false }`
[INFO] [stdout] fc4958b8b141f378d04f492f67c6191711fd2f1b72347558fae787c1fc91ad15