[INFO] crate cbor-no-std 0.3.0 is already in cache
[INFO] testing cbor-no-std-0.3.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate cbor-no-std 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cbor-no-std 0.3.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cbor-no-std 0.3.0
[INFO] finished tweaking crates.io crate cbor-no-std 0.3.0
[INFO] tweaked toml for crates.io crate cbor-no-std 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f260fa7fb1afb24fa489fdacf420f4328b1168ca1a0654b487ec457a9b9b8334
[INFO] running `"docker" "start" "-a" "f260fa7fb1afb24fa489fdacf420f4328b1168ca1a0654b487ec457a9b9b8334"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cbor-no-std v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(lang_items, alloc)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/de.rs:65:28
[INFO] [stderr]    |
[INFO] [stderr] 65 |             value @ 0b00000...0b10111 => value,
[INFO] [stderr]    |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/ser.rs:66:19
[INFO] [stderr]    |
[INFO] [stderr] 66 |             n @ 0 ... 23 => vec![bytes::concat(major_type, n as u8)],
[INFO] [stderr]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/ser.rs:67:20
[INFO] [stderr]    |
[INFO] [stderr] 67 |             n @ 24 ... 255 => vec![bytes::concat(major_type, 24), n as u8],
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `cbor-no-std`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f260fa7fb1afb24fa489fdacf420f4328b1168ca1a0654b487ec457a9b9b8334"`
[INFO] running `"docker" "rm" "-f" "f260fa7fb1afb24fa489fdacf420f4328b1168ca1a0654b487ec457a9b9b8334"`
[INFO] [stdout] f260fa7fb1afb24fa489fdacf420f4328b1168ca1a0654b487ec457a9b9b8334