[INFO] crate split-buffer 0.1.0 is already in cache
[INFO] checking split-buffer-0.1.0 against master#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] extracting crate split-buffer 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate split-buffer 0.1.0 on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-8/source/Cargo.toml
[INFO] crate crates.io crate split-buffer 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5eda3b098452b5a7f3fc9e12e147463f7dab89e715d9886635f9f3854395a89f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5eda3b098452b5a7f3fc9e12e147463f7dab89e715d9886635f9f3854395a89f"`
[INFO] [stderr]     Checking split-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: `split_buffer::Buffer` doesn't implement `std::fmt::Debug`
[INFO] [stderr]  --> examples/simple.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 |     println!("{:?}", &buf);
[INFO] [stderr]   |                      ^^^^ `split_buffer::Buffer` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stderr]   |
[INFO] [stderr]   = help: the trait `std::fmt::Debug` is not implemented for `split_buffer::Buffer`
[INFO] [stderr]   = note: required because of the requirements on the impl of `std::fmt::Debug` for `&split_buffer::Buffer`
[INFO] [stderr]   = note: required by `std::fmt::Debug::fmt`
[INFO] [stderr]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `split-buffer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5eda3b098452b5a7f3fc9e12e147463f7dab89e715d9886635f9f3854395a89f"`
[INFO] running `"docker" "rm" "-f" "5eda3b098452b5a7f3fc9e12e147463f7dab89e715d9886635f9f3854395a89f"`
[INFO] [stdout] 5eda3b098452b5a7f3fc9e12e147463f7dab89e715d9886635f9f3854395a89f