[INFO] crate arendur 0.0.5 is already in cache
[INFO] checking arendur-0.0.5 against try#5e633973aa9255a88b65a39484627bb54e6044b3 for pr-66063
[INFO] extracting crate arendur 0.0.5 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate arendur 0.0.5 on toolchain 5e633973aa9255a88b65a39484627bb54e6044b3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate arendur 0.0.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate arendur 0.0.5
[INFO] tweaked toml for crates.io crate arendur 0.0.5 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "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" "+5e633973aa9255a88b65a39484627bb54e6044b3" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+5e633973aa9255a88b65a39484627bb54e6044b3" "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] f3b641d27c343e41ba8f7e943f817d2882c83a600ed3740cb65a9abad5e4fbba
[INFO] running `"docker" "start" "-a" "f3b641d27c343e41ba8f7e943f817d2882c83a600ed3740cb65a9abad5e4fbba"`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking copy_arena v0.1.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking tobj v0.1.11
[INFO] [stderr]     Checking aren_alloc v0.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aren_alloc-0.2.1/src/lib.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | #![feature(coerce_unsized)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aren_alloc-0.2.1/src/lib.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | #![feature(unsize)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking num_cpus v1.11.0
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr] error: could not compile `aren_alloc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f3b641d27c343e41ba8f7e943f817d2882c83a600ed3740cb65a9abad5e4fbba"`
[INFO] running `"docker" "rm" "-f" "f3b641d27c343e41ba8f7e943f817d2882c83a600ed3740cb65a9abad5e4fbba"`
[INFO] [stdout] f3b641d27c343e41ba8f7e943f817d2882c83a600ed3740cb65a9abad5e4fbba