[INFO] fetching crate split-buffer 0.1.0...
[INFO] checking split-buffer-0.1.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate split-buffer 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate split-buffer 0.1.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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-2/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ace151d33d9d0f45564dabf87d33a5a2c06284f9d61383a6158839de582e8b0f
[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" "ace151d33d9d0f45564dabf87d33a5a2c06284f9d61383a6158839de582e8b0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ace151d33d9d0f45564dabf87d33a5a2c06284f9d61383a6158839de582e8b0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace151d33d9d0f45564dabf87d33a5a2c06284f9d61383a6158839de582e8b0f", kill_on_drop: false }`
[INFO] [stdout] ace151d33d9d0f45564dabf87d33a5a2c06284f9d61383a6158839de582e8b0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] c181101df83b30a411cec5cff71e77884da366c73a70164c55266056d013e528
[INFO] running `Command { std: "docker" "start" "-a" "c181101df83b30a411cec5cff71e77884da366c73a70164c55266056d013e528", 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: required because of the requirements on the impl of `Debug` for `&Buffer`
[INFO] [stdout]   = note: required by `std::fmt::Debug::fmt`
[INFO] [stdout]   = note: this error originates in a macro (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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c181101df83b30a411cec5cff71e77884da366c73a70164c55266056d013e528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c181101df83b30a411cec5cff71e77884da366c73a70164c55266056d013e528", kill_on_drop: false }`
[INFO] [stdout] c181101df83b30a411cec5cff71e77884da366c73a70164c55266056d013e528