[INFO] fetching crate visiting_ref 0.2.0...
[INFO] testing visiting_ref-0.2.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate visiting_ref 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate visiting_ref 0.2.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate visiting_ref 0.2.0
[INFO] finished tweaking crates.io crate visiting_ref 0.2.0
[INFO] tweaked toml for crates.io crate visiting_ref 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f1b214e92148aaa12cb7125a9ca61c2dd53ade510a18840e7c6a48b367498d1a
[INFO] running `"docker" "start" "-a" "f1b214e92148aaa12cb7125a9ca61c2dd53ade510a18840e7c6a48b367498d1a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.19
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling pin-project v0.4.19
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling visiting_ref v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.27s
[INFO] running `"docker" "inspect" "f1b214e92148aaa12cb7125a9ca61c2dd53ade510a18840e7c6a48b367498d1a"`
[INFO] running `"docker" "rm" "-f" "f1b214e92148aaa12cb7125a9ca61c2dd53ade510a18840e7c6a48b367498d1a"`
[INFO] [stdout] f1b214e92148aaa12cb7125a9ca61c2dd53ade510a18840e7c6a48b367498d1a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 752b008fd12efd136c6dd3cf6ec118c999035de70ead20e4043084672e58a2c9
[INFO] running `"docker" "start" "-a" "752b008fd12efd136c6dd3cf6ec118c999035de70ead20e4043084672e58a2c9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling visiting_ref v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.80s
[INFO] running `"docker" "inspect" "752b008fd12efd136c6dd3cf6ec118c999035de70ead20e4043084672e58a2c9"`
[INFO] running `"docker" "rm" "-f" "752b008fd12efd136c6dd3cf6ec118c999035de70ead20e4043084672e58a2c9"`
[INFO] [stdout] 752b008fd12efd136c6dd3cf6ec118c999035de70ead20e4043084672e58a2c9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb1477cf677d4fef780ff8297818008a72aacb589a646e2e904c070798a8ef54
[INFO] running `"docker" "start" "-a" "bb1477cf677d4fef780ff8297818008a72aacb589a646e2e904c070798a8ef54"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/visiting_ref-67d5561bfe362d19
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::fmt_binary_impl_works ... ok
[INFO] [stdout] test tests::fmt_lower_hex_impl_works ... ok
[INFO] [stdout] test tests::fmt_octal_impl_works ... ok
[INFO] [stdout] test tests::fmt_upper_hex_impl_works ... ok
[INFO] [stdout] test tests::fmt_debug_impl_works ... ok
[INFO] [stdout] test tests::fmt_display_impl_works ... ok
[INFO] [stdout] test tests::fmt_upper_exp_impl_works ... ok
[INFO] [stdout] test tests::fmt_pointer_impl_works ... ok
[INFO] [stdout] test tests::fmt_lower_exp_impl_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests visiting_ref
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs -  (line 253) ... ok
[INFO] [stdout] test src/lib.rs -  (line 47) ... ok
[INFO] [stdout] test src/lib.rs -  (line 282) ... ok
[INFO] [stdout] test src/lib.rs -  (line 81) ... ok
[INFO] [stdout] test src/lib.rs - VisitingMut<T>::new (line 521) ... ok
[INFO] [stdout] test src/lib.rs -  (line 63) ... ok
[INFO] [stdout] test src/lib.rs - VisitingMut<T>::downgrade (line 546) ... ok
[INFO] [stdout] test src/lib.rs - VisitingRef<T>::new (line 435) ... ok
[INFO] [stdout] test src/lib.rs - VisitingRef<T>::run_with (line 459) ... ok
[INFO] [stdout] test src/lib.rs - VisitingMut<T>::run_with (line 569) ... ok
[INFO] [stdout] test src/lib.rs -  (line 326) ... ok
[INFO] [stdout] test src/lib.rs -  (line 123) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bb1477cf677d4fef780ff8297818008a72aacb589a646e2e904c070798a8ef54"`
[INFO] running `"docker" "rm" "-f" "bb1477cf677d4fef780ff8297818008a72aacb589a646e2e904c070798a8ef54"`
[INFO] [stdout] bb1477cf677d4fef780ff8297818008a72aacb589a646e2e904c070798a8ef54