[INFO] updating cached repository https://github.com/chesterliliang/schnorrkel-c
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d7d12367117760d0ad7f02d461f2e4945bb1a3b
[INFO] checking chesterliliang/schnorrkel-c against try#8810c24b0958114d8dbb32d878444e8956fce80f for pr-66063
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchesterliliang%2Fschnorrkel-c" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chesterliliang/schnorrkel-c on toolchain 8810c24b0958114d8dbb32d878444e8956fce80f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chesterliliang/schnorrkel-c
[INFO] finished tweaking git repo https://github.com/chesterliliang/schnorrkel-c
[INFO] tweaked toml for git repo https://github.com/chesterliliang/schnorrkel-c written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/chesterliliang/schnorrkel-c already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "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" "+8810c24b0958114d8dbb32d878444e8956fce80f" "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] 93a5ffb342476f6ecf623fe343bd4bcfa4638e650002d5ac3230c7ffd3151ba1
[INFO] running `"docker" "start" "-a" "93a5ffb342476f6ecf623fe343bd4bcfa4638e650002d5ac3230c7ffd3151ba1"`
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling packed_simd v0.3.3
[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/subtle-2.0.0/src/lib.rs:12:34
[INFO] [stderr]    |
[INFO] [stderr] 12 | #![cfg_attr(feature = "nightly", feature(asm))]
[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/subtle-2.0.0/src/lib.rs:13:34
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![cfg_attr(feature = "nightly", feature(external_doc))]
[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/subtle-2.0.0/src/lib.rs:12:34
[INFO] [stderr]    |
[INFO] [stderr] 12 | #![cfg_attr(feature = "nightly", feature(asm))]
[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/subtle-2.0.0/src/lib.rs:13:34
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![cfg_attr(feature = "nightly", feature(external_doc))]
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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 rand_hc v0.1.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr] error: could not compile `subtle`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] error: could not compile `subtle`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/packed_simd-0.3.3/src/lib.rs:202:1
[INFO] [stderr]     |
[INFO] [stderr] 202 | / #![feature(
[INFO] [stderr] 203 | |     repr_simd,
[INFO] [stderr] 204 | |     const_fn,
[INFO] [stderr] 205 | |     platform_intrinsics,
[INFO] [stderr] ...   |
[INFO] [stderr] 215 | |     custom_inner_attributes
[INFO] [stderr] 216 | | )]
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `packed_simd`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "93a5ffb342476f6ecf623fe343bd4bcfa4638e650002d5ac3230c7ffd3151ba1"`
[INFO] running `"docker" "rm" "-f" "93a5ffb342476f6ecf623fe343bd4bcfa4638e650002d5ac3230c7ffd3151ba1"`
[INFO] [stdout] 93a5ffb342476f6ecf623fe343bd4bcfa4638e650002d5ac3230c7ffd3151ba1