[INFO] fetching crate mock_me 0.2.3...
[INFO] testing mock_me-0.2.3 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate mock_me 0.2.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mock_me 0.2.3 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mock_me 0.2.3
[INFO] finished tweaking crates.io crate mock_me 0.2.3
[INFO] tweaked toml for crates.io crate mock_me 0.2.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: library `mock_me` should only specify `proc-macro = true` instead of setting `crate-type`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mock_me_test_context v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a735fb142b25567bffa04a1b1cae4308368c91adc105ba93647cad80613f80ca
[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" "a735fb142b25567bffa04a1b1cae4308368c91adc105ba93647cad80613f80ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a735fb142b25567bffa04a1b1cae4308368c91adc105ba93647cad80613f80ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a735fb142b25567bffa04a1b1cae4308368c91adc105ba93647cad80613f80ca", kill_on_drop: false }`
[INFO] [stdout] a735fb142b25567bffa04a1b1cae4308368c91adc105ba93647cad80613f80ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e5ae1db1038088de1fd03e39010dd46f5a7638700b9ddcb1e0c490329fbc2e2
[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" "4e5ae1db1038088de1fd03e39010dd46f5a7638700b9ddcb1e0c490329fbc2e2", kill_on_drop: false }`
[INFO] [stderr] warning: library `mock_me` should only specify `proc-macro = true` instead of setting `crate-type`
[INFO] [stderr]    Compiling mock_me_test_context v0.1.2
[INFO] [stderr]    Compiling mock_me v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | #![feature(proc_macro)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mock_me`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4e5ae1db1038088de1fd03e39010dd46f5a7638700b9ddcb1e0c490329fbc2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e5ae1db1038088de1fd03e39010dd46f5a7638700b9ddcb1e0c490329fbc2e2", kill_on_drop: false }`
[INFO] [stdout] 4e5ae1db1038088de1fd03e39010dd46f5a7638700b9ddcb1e0c490329fbc2e2
