[INFO] fetching crate zvariant_derive 2.0.0...
[INFO] testing zvariant_derive-2.0.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate zvariant_derive 2.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate zvariant_derive 2.0.0 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 zvariant_derive 2.0.0
[INFO] finished tweaking crates.io crate zvariant_derive 2.0.0
[INFO] tweaked toml for crates.io crate zvariant_derive 2.0.0 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] f9377c51966ad96a6d9701ebbd3cff23499fc66005701daecbb58e17a98ea6fc
[INFO] running `"docker" "start" "-a" "f9377c51966ad96a6d9701ebbd3cff23499fc66005701daecbb58e17a98ea6fc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling zvariant_derive v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `"docker" "inspect" "f9377c51966ad96a6d9701ebbd3cff23499fc66005701daecbb58e17a98ea6fc"`
[INFO] running `"docker" "rm" "-f" "f9377c51966ad96a6d9701ebbd3cff23499fc66005701daecbb58e17a98ea6fc"`
[INFO] [stdout] f9377c51966ad96a6d9701ebbd3cff23499fc66005701daecbb58e17a98ea6fc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 774611b3b6d8e0ff9ebbd83cc6945ef6078d2013a1cabaa71cb9453cbfd9539a
[INFO] running `"docker" "start" "-a" "774611b3b6d8e0ff9ebbd83cc6945ef6078d2013a1cabaa71cb9453cbfd9539a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]    Compiling enumflags2 v0.6.4
[INFO] [stderr]    Compiling zvariant_derive v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `zvariant`
[INFO] [stderr]  --> tests/tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use zvariant::Type;
[INFO] [stderr]   |     ^^^^^^^^ use of undeclared type or module `zvariant`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `zvariant`
[INFO] [stderr]  --> tests/tests.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 |     #[derive(Type)]
[INFO] [stderr]   |              ^^^^ use of undeclared type or module `zvariant`
[INFO] [stderr]   |
[INFO] [stderr]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `zvariant`
[INFO] [stderr]   --> tests/tests.rs:16:14
[INFO] [stderr]    |
[INFO] [stderr] 16 |     #[derive(Type)]
[INFO] [stderr]    |              ^^^^ use of undeclared type or module `zvariant`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `zvariant`
[INFO] [stderr]   --> tests/tests.rs:29:14
[INFO] [stderr]    |
[INFO] [stderr] 29 |     #[derive(Type)]
[INFO] [stderr]    |              ^^^^ use of undeclared type or module `zvariant`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `zvariant_derive`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "774611b3b6d8e0ff9ebbd83cc6945ef6078d2013a1cabaa71cb9453cbfd9539a"`
[INFO] running `"docker" "rm" "-f" "774611b3b6d8e0ff9ebbd83cc6945ef6078d2013a1cabaa71cb9453cbfd9539a"`
[INFO] [stdout] 774611b3b6d8e0ff9ebbd83cc6945ef6078d2013a1cabaa71cb9453cbfd9539a