[INFO] fetching crate cilk 0.2.1...
[INFO] checking cilk-0.2.1 against beta for pr-78714
[INFO] extracting crate cilk 0.2.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate cilk 0.2.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cilk 0.2.1
[INFO] finished tweaking crates.io crate cilk 0.2.1
[INFO] tweaked toml for crates.io crate cilk 0.2.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cee86b54298af04f75aee13ab81ecd16644acf9ea912a9b240900f197a740f6
[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" "8cee86b54298af04f75aee13ab81ecd16644acf9ea912a9b240900f197a740f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cee86b54298af04f75aee13ab81ecd16644acf9ea912a9b240900f197a740f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cee86b54298af04f75aee13ab81ecd16644acf9ea912a9b240900f197a740f6", kill_on_drop: false }`
[INFO] [stdout] 8cee86b54298af04f75aee13ab81ecd16644acf9ea912a9b240900f197a740f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a4da456e80dc70b6a00ae1cc53498e65dedc1baf94e2b1a9bee708166b68b0
[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" "d4a4da456e80dc70b6a00ae1cc53498e65dedc1baf94e2b1a9bee708166b68b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]     Checking dynasmrt v0.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-quote v0.3.2
[INFO] [stderr]    Compiling defs v0.1.0
[INFO] [stdout] error[E0432]: unresolved import `proc_macro_error::proc_macro2`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/defs-0.1.0/src/isel_pat.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     proc_macro2::{Group, Ident, Span},
[INFO] [stdout]   |     ^^^^^^^^^^^ could not find `proc_macro2` in `proc_macro_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proc_macro2`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/defs-0.1.0/src/isel_pat.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | type TS = proc_macro2::TokenStream;
[INFO] [stdout]    |           ^^^^^^^^^^^ use of undeclared crate or module `proc_macro2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/defs-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `defs`
[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 `Command { std: "docker" "inspect" "d4a4da456e80dc70b6a00ae1cc53498e65dedc1baf94e2b1a9bee708166b68b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a4da456e80dc70b6a00ae1cc53498e65dedc1baf94e2b1a9bee708166b68b0", kill_on_drop: false }`
[INFO] [stdout] d4a4da456e80dc70b6a00ae1cc53498e65dedc1baf94e2b1a9bee708166b68b0