[INFO] cloning repository https://github.com/miguelmota/eth_checksum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miguelmota/eth_checksum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelmota%2Feth_checksum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelmota%2Feth_checksum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fea7208bc7b7b8359082dcff6039032d355b82b3
[INFO] checking miguelmota/eth_checksum against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelmota%2Feth_checksum" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/miguelmota/eth_checksum on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miguelmota/eth_checksum
[INFO] finished tweaking git repo https://github.com/miguelmota/eth_checksum
[INFO] tweaked toml for git repo https://github.com/miguelmota/eth_checksum written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/miguelmota/eth_checksum already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e95a9f49a636b92867832f929b3f0fe42dbd2fcc6323347bc9ea4560e07cda7f
[INFO] running `Command { std: "docker" "start" "-a" "e95a9f49a636b92867832f929b3f0fe42dbd2fcc6323347bc9ea4560e07cda7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e95a9f49a636b92867832f929b3f0fe42dbd2fcc6323347bc9ea4560e07cda7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e95a9f49a636b92867832f929b3f0fe42dbd2fcc6323347bc9ea4560e07cda7f", kill_on_drop: false }`
[INFO] [stdout] e95a9f49a636b92867832f929b3f0fe42dbd2fcc6323347bc9ea4560e07cda7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d94b2e82b494293f9aea20dbe72af7aa38a8009e740b17104276af5f71ca130
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3d94b2e82b494293f9aea20dbe72af7aa38a8009e740b17104276af5f71ca130", kill_on_drop: false }`
[INFO] [stderr]     Checking eth_checksum v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(any(test, bench), feature(test))]
[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 `eth_checksum` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3d94b2e82b494293f9aea20dbe72af7aa38a8009e740b17104276af5f71ca130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d94b2e82b494293f9aea20dbe72af7aa38a8009e740b17104276af5f71ca130", kill_on_drop: false }`
[INFO] [stdout] 3d94b2e82b494293f9aea20dbe72af7aa38a8009e740b17104276af5f71ca130
