[INFO] crate capture 0.1.0 is already in cache
[INFO] testing capture-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate capture 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate capture 0.1.0 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 capture 0.1.0
[INFO] finished tweaking crates.io crate capture 0.1.0
[INFO] tweaked toml for crates.io crate capture 0.1.0 written to /workspace/builds/worker-12/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] [stderr] warning: path `/workspace/builds/worker-12/source/src/capture.rs` was erroneously implicitly accepted for library `capture`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 6e2e2d6d95ba8f3e1cceb9626b93acd027ad040dcc4d0f4d6468f69d09617473
[INFO] running `"docker" "start" "-a" "6e2e2d6d95ba8f3e1cceb9626b93acd027ad040dcc4d0f4d6468f69d09617473"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/capture.rs` was erroneously implicitly accepted for library `capture`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]    Compiling capture v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0658]: non-builtin inner attributes are unstable
[INFO] [stderr]   --> src/capture.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | #![license = "MIT"]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `license` in this scope
[INFO] [stderr]   --> src/capture.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | #![license = "MIT"]
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/capture.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | #![feature(macro_rules)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `capture`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6e2e2d6d95ba8f3e1cceb9626b93acd027ad040dcc4d0f4d6468f69d09617473"`
[INFO] running `"docker" "rm" "-f" "6e2e2d6d95ba8f3e1cceb9626b93acd027ad040dcc4d0f4d6468f69d09617473"`
[INFO] [stdout] 6e2e2d6d95ba8f3e1cceb9626b93acd027ad040dcc4d0f4d6468f69d09617473