[INFO] crate spinlocks 0.0.1 is already in cache
[INFO] checking spinlocks-0.0.1 against beta-2019-10-27 for pr-65897
[INFO] extracting crate spinlocks 0.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate spinlocks 0.0.1 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate spinlocks 0.0.1
[INFO] finished tweaking crates.io crate spinlocks 0.0.1
[INFO] tweaked toml for crates.io crate spinlocks 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=allow" "-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-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce7c29edc711d6e76e212bdf2fdc566a8882a6f6639a457b1c138dfa5ae6512a
[INFO] running `"docker" "start" "-a" "ce7c29edc711d6e76e212bdf2fdc566a8882a6f6639a457b1c138dfa5ae6512a"`
[INFO] [stderr]     Checking spinlocks v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: cannot find attribute `unsafe_destructor` in this scope
[INFO] [stderr]    --> src/lib.rs:390:3
[INFO] [stderr]     |
[INFO] [stderr] 390 | #[unsafe_destructor]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `unsafe_destructor` in this scope
[INFO] [stderr]    --> src/lib.rs:429:3
[INFO] [stderr]     |
[INFO] [stderr] 429 | #[unsafe_destructor]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | #![feature(optin_builtin_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | #![feature(unsafe_destructor)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | #![feature(core)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | #![feature(std_misc)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | #![feature(test)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: cannot find attribute `unsafe_destructor` in this scope
[INFO] [stderr]    --> src/lib.rs:390:3
[INFO] [stderr]     |
[INFO] [stderr] 390 | #[unsafe_destructor]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `unsafe_destructor` in this scope
[INFO] [stderr]    --> src/lib.rs:429:3
[INFO] [stderr]     |
[INFO] [stderr] 429 | #[unsafe_destructor]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `should_fail` in this scope
[INFO] [stderr]   --> src/tests/mod.rs:71:3
[INFO] [stderr]    |
[INFO] [stderr] 71 | #[should_fail]
[INFO] [stderr]    |   ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `should_panic`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `unsafe_destructor` in this scope
[INFO] [stderr]   --> src/tests/mod.rs:84:3
[INFO] [stderr]    |
[INFO] [stderr] 84 | #[unsafe_destructor]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `should_fail` in this scope
[INFO] [stderr]   --> src/tests/mod.rs:93:3
[INFO] [stderr]    |
[INFO] [stderr] 93 | #[should_fail(expected = "child thread None panicked")]
[INFO] [stderr]    |   ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `should_panic`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `spinlocks`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0425]: cannot find function `scoped` in module `thread`
[INFO] [stderr]   --> src/tests/mod.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |     thread::scoped(|| { let _  = spin.write().unwrap(); }).join();
[INFO] [stderr]    |             ^^^^^^ not found in `thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `thread`
[INFO] [stderr]    --> src/tests/mod.rs:105:35
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let mut workers : Vec<thread::JoinGuard<()>> = Vec::with_capacity(10); 
[INFO] [stderr]     |                                   ^^^^^^^^^ not found in `thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `scoped` in module `thread`
[INFO] [stderr]    --> src/tests/mod.rs:107:30
[INFO] [stderr]     |
[INFO] [stderr] 107 |         workers.push(thread::scoped(|| { let data = spin.read().unwrap(); assert_eq!(*data, 255);}) );
[INFO] [stderr]     |                              ^^^^^^ not found in `thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `thread`
[INFO] [stderr]    --> src/tests/mod.rs:117:35
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let mut workers : Vec<thread::JoinGuard<()>> = Vec::with_capacity(10); 
[INFO] [stderr]     |                                   ^^^^^^^^^ not found in `thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `scoped` in module `thread`
[INFO] [stderr]    --> src/tests/mod.rs:120:30
[INFO] [stderr]     |
[INFO] [stderr] 120 |         workers.push(thread::scoped(move || { let mut data = spin.write().unwrap(); *data = i ;assert_eq!(*data, i );}) );
[INFO] [stderr]     |                              ^^^^^^ not found in `thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | #![feature(optin_builtin_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | #![feature(unsafe_destructor)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | #![feature(core)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | #![feature(std_misc)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | #![feature(test)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 15 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0425, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `spinlocks`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ce7c29edc711d6e76e212bdf2fdc566a8882a6f6639a457b1c138dfa5ae6512a"`
[INFO] running `"docker" "rm" "-f" "ce7c29edc711d6e76e212bdf2fdc566a8882a6f6639a457b1c138dfa5ae6512a"`
[INFO] [stdout] ce7c29edc711d6e76e212bdf2fdc566a8882a6f6639a457b1c138dfa5ae6512a