[INFO] fetching crate split-buffer 0.1.0...
[INFO] checking split-buffer-0.1.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate split-buffer 0.1.0 into /workspace/builds/worker-1-tc1/source
[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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate split-buffer 0.1.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate split-buffer 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 136beb4f7189c6e1489bf9e25e58e7ade8ac409d5dedf71ce02aa0859b7b6aea
[INFO] running `Command { std: "docker" "start" "-a" "136beb4f7189c6e1489bf9e25e58e7ade8ac409d5dedf71ce02aa0859b7b6aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "136beb4f7189c6e1489bf9e25e58e7ade8ac409d5dedf71ce02aa0859b7b6aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136beb4f7189c6e1489bf9e25e58e7ade8ac409d5dedf71ce02aa0859b7b6aea", kill_on_drop: false }`
[INFO] [stdout] 136beb4f7189c6e1489bf9e25e58e7ade8ac409d5dedf71ce02aa0859b7b6aea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0029e9d717f2190c283e10d7392cf96e94d8a107a1c2d8cfc7d0da2fe3d8b61
[INFO] running `Command { std: "docker" "start" "-a" "d0029e9d717f2190c283e10d7392cf96e94d8a107a1c2d8cfc7d0da2fe3d8b61", 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]   |               required by this formatting parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Debug` is not implemented for `Buffer`
[INFO] [stdout]   = note: required for `&Buffer` to implement `Debug`
[INFO] [stdout]   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[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` (example "simple") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "d0029e9d717f2190c283e10d7392cf96e94d8a107a1c2d8cfc7d0da2fe3d8b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0029e9d717f2190c283e10d7392cf96e94d8a107a1c2d8cfc7d0da2fe3d8b61", kill_on_drop: false }`
[INFO] [stdout] d0029e9d717f2190c283e10d7392cf96e94d8a107a1c2d8cfc7d0da2fe3d8b61