[INFO] fetching crate split-buffer 0.1.0...
[INFO] checking split-buffer-0.1.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate split-buffer 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate split-buffer 0.1.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate split-buffer 0.1.0
[INFO] finished tweaking crates.io crate split-buffer 0.1.0
[INFO] tweaked toml for crates.io crate split-buffer 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate split-buffer 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8992d966ff93d5c2e0e2d1f2a1acbdfda76d9c0f05af17cb51c7a6a270e9e4e
[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" "e8992d966ff93d5c2e0e2d1f2a1acbdfda76d9c0f05af17cb51c7a6a270e9e4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8992d966ff93d5c2e0e2d1f2a1acbdfda76d9c0f05af17cb51c7a6a270e9e4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8992d966ff93d5c2e0e2d1f2a1acbdfda76d9c0f05af17cb51c7a6a270e9e4e", kill_on_drop: false }`
[INFO] [stdout] e8992d966ff93d5c2e0e2d1f2a1acbdfda76d9c0f05af17cb51c7a6a270e9e4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3def2af07cad0ab3e06c11afb652d22fef80986c3a5b5261ffedad7bff07186
[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" "a3def2af07cad0ab3e06c11afb652d22fef80986c3a5b5261ffedad7bff07186", kill_on_drop: false }`
[INFO] [stderr]     Checking split-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `Buffer` doesn't implement `Debug`
[INFO] [stdout]  --> examples/simple.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     println!("{:?}", &buf);
[INFO] [stdout]   |                      ^^^^ `Buffer` cannot be formatted using `{:?}` because it doesn't implement `Debug`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Debug` is not implemented for `Buffer`
[INFO] [stdout]   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `split-buffer` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a3def2af07cad0ab3e06c11afb652d22fef80986c3a5b5261ffedad7bff07186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3def2af07cad0ab3e06c11afb652d22fef80986c3a5b5261ffedad7bff07186", kill_on_drop: false }`
[INFO] [stdout] a3def2af07cad0ab3e06c11afb652d22fef80986c3a5b5261ffedad7bff07186
