[INFO] fetching crate cbordata 0.5.4...
[INFO] testing cbordata-0.5.4 against 1.60.0 for beta-1.61-1
[INFO] extracting crate cbordata 0.5.4 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate cbordata 0.5.4 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cbordata 0.5.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cbordata 0.5.4
[INFO] tweaked toml for crates.io crate cbordata 0.5.4 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate crates.io crate cbordata 0.5.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_arbitrary v1.0.2
[INFO] [stderr]   Downloaded arbitrary v1.0.2
[INFO] [stderr]   Downloaded cbordata-derive v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdc4fa8c76420bb8464c603f60ceb6e0bdf359b8afdd6b30ee6c7ebada73d5ed
[INFO] running `Command { std: "docker" "start" "-a" "bdc4fa8c76420bb8464c603f60ceb6e0bdf359b8afdd6b30ee6c7ebada73d5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdc4fa8c76420bb8464c603f60ceb6e0bdf359b8afdd6b30ee6c7ebada73d5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdc4fa8c76420bb8464c603f60ceb6e0bdf359b8afdd6b30ee6c7ebada73d5ed", kill_on_drop: false }`
[INFO] [stdout] bdc4fa8c76420bb8464c603f60ceb6e0bdf359b8afdd6b30ee6c7ebada73d5ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 009c55d3420ebb87b269b2147f044b081cc25891c5985fe5bc3dc4c0f0bd82f6
[INFO] running `Command { std: "docker" "start" "-a" "009c55d3420ebb87b269b2147f044b081cc25891c5985fe5bc3dc4c0f0bd82f6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn-mid v0.5.3
[INFO] [stderr]    Compiling derive_arbitrary v1.0.2
[INFO] [stderr]    Compiling arbitrary v1.0.2
[INFO] [stderr]    Compiling cbordata-derive v0.5.4
[INFO] [stderr]    Compiling cbordata v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(total_cmp)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cbordata` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "009c55d3420ebb87b269b2147f044b081cc25891c5985fe5bc3dc4c0f0bd82f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "009c55d3420ebb87b269b2147f044b081cc25891c5985fe5bc3dc4c0f0bd82f6", kill_on_drop: false }`
[INFO] [stdout] 009c55d3420ebb87b269b2147f044b081cc25891c5985fe5bc3dc4c0f0bd82f6