[INFO] fetching crate silkworm_syn 0.1.0-dev.0...
[INFO] testing silkworm_syn-0.1.0-dev.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate silkworm_syn 0.1.0-dev.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate silkworm_syn 0.1.0-dev.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate silkworm_syn 0.1.0-dev.0
[INFO] finished tweaking crates.io crate silkworm_syn 0.1.0-dev.0
[INFO] tweaked toml for crates.io crate silkworm_syn 0.1.0-dev.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-06-03" "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] c9192c0ccf9b146399f28ce6fa6ad224f9bbf5b5ca7770ca3d08c0032d72c00c
[INFO] running `"docker" "start" "-a" "c9192c0ccf9b146399f28ce6fa6ad224f9bbf5b5ca7770ca3d08c0032d72c00c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling ahash v0.3.5
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling thiserror v1.0.19
[INFO] [stderr]    Compiling silkworm_syn v0.1.0-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.79s
[INFO] running `"docker" "inspect" "c9192c0ccf9b146399f28ce6fa6ad224f9bbf5b5ca7770ca3d08c0032d72c00c"`
[INFO] running `"docker" "rm" "-f" "c9192c0ccf9b146399f28ce6fa6ad224f9bbf5b5ca7770ca3d08c0032d72c00c"`
[INFO] [stdout] c9192c0ccf9b146399f28ce6fa6ad224f9bbf5b5ca7770ca3d08c0032d72c00c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-06-03" "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] 78bbfda7dc504e3a7fb30436fa8f3f87ad9a2efbd102030f300f75639956d253
[INFO] running `"docker" "start" "-a" "78bbfda7dc504e3a7fb30436fa8f3f87ad9a2efbd102030f300f75639956d253"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling silkworm_syn v0.1.0-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "78bbfda7dc504e3a7fb30436fa8f3f87ad9a2efbd102030f300f75639956d253"`
[INFO] running `"docker" "rm" "-f" "78bbfda7dc504e3a7fb30436fa8f3f87ad9a2efbd102030f300f75639956d253"`
[INFO] [stdout] 78bbfda7dc504e3a7fb30436fa8f3f87ad9a2efbd102030f300f75639956d253
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-06-03" "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] 804cdb11484c855e53e0060899ab7860b997f6974f573d581bcaaf78d884fff8
[INFO] running `"docker" "start" "-a" "804cdb11484c855e53e0060899ab7860b997f6974f573d581bcaaf78d884fff8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/silkworm_syn-77ec15a8a27ff615
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lex::tests::it_works_at_all ... ok
[INFO] [stdout] test symbol::pin_buf::tests::can_push_strings ... ok
[INFO] [stdout] test symbol::tests::can_intern_symbols ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests silkworm_syn
[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 `"docker" "inspect" "804cdb11484c855e53e0060899ab7860b997f6974f573d581bcaaf78d884fff8"`
[INFO] running `"docker" "rm" "-f" "804cdb11484c855e53e0060899ab7860b997f6974f573d581bcaaf78d884fff8"`
[INFO] [stdout] 804cdb11484c855e53e0060899ab7860b997f6974f573d581bcaaf78d884fff8