[INFO] fetching crate cluConstConcat 1.2.2...
[INFO] checking cluConstConcat-1.2.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate cluConstConcat 1.2.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate cluConstConcat 1.2.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cluConstConcat 1.2.2
[INFO] finished tweaking crates.io crate cluConstConcat 1.2.2
[INFO] tweaked toml for crates.io crate cluConstConcat 1.2.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] da1fcf03d3dddaa9b46d79cd04b4101f38efbd80583ed604469ba163357fac47
[INFO] running `"docker" "start" "-a" "da1fcf03d3dddaa9b46d79cd04b4101f38efbd80583ed604469ba163357fac47"`
[INFO] [stderr]     Checking cluConstConcat v1.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0635]: unknown feature `const_slice_len`
[INFO] [stderr]    --> src/lib.rs:188:12
[INFO] [stderr]     |
[INFO] [stderr] 188 | #![feature(const_slice_len)]
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_str_as_bytes`
[INFO] [stderr]    --> src/lib.rs:189:12
[INFO] [stderr]     |
[INFO] [stderr] 189 | #![feature(const_str_as_bytes)]
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_str_len`
[INFO] [stderr]    --> src/lib.rs:191:12
[INFO] [stderr]     |
[INFO] [stderr] 191 | #![feature(const_str_len)]
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `cluConstConcat` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `clu_const_concat`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `cluConstConcat`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0635]: unknown feature `const_slice_len`
[INFO] [stderr]    --> src/lib.rs:188:12
[INFO] [stderr]     |
[INFO] [stderr] 188 | #![feature(const_slice_len)]
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_str_as_bytes`
[INFO] [stderr]    --> src/lib.rs:189:12
[INFO] [stderr]     |
[INFO] [stderr] 189 | #![feature(const_str_as_bytes)]
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_str_len`
[INFO] [stderr]    --> src/lib.rs:191:12
[INFO] [stderr]     |
[INFO] [stderr] 191 | #![feature(const_str_len)]
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `cluConstConcat` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `clu_const_concat`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `cluConstConcat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "da1fcf03d3dddaa9b46d79cd04b4101f38efbd80583ed604469ba163357fac47"`
[INFO] running `"docker" "rm" "-f" "da1fcf03d3dddaa9b46d79cd04b4101f38efbd80583ed604469ba163357fac47"`
[INFO] [stdout] da1fcf03d3dddaa9b46d79cd04b4101f38efbd80583ed604469ba163357fac47