[INFO] cloning repository https://github.com/Curti-s/traits_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Curti-s/traits_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurti-s%2Ftraits_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurti-s%2Ftraits_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e56f14d29344eabf08b0efb5138aa938ae448db2
[INFO] testing Curti-s/traits_practice against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurti-s%2Ftraits_practice" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Curti-s/traits_practice 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/Curti-s/traits_practice
[INFO] finished tweaking git repo https://github.com/Curti-s/traits_practice
[INFO] tweaked toml for git repo https://github.com/Curti-s/traits_practice written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Curti-s/traits_practice 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] b5086a3fb4d707a54b4aa112dbb91240b3c2777dd2fc74a3051a8819aec0e7f0
[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" "b5086a3fb4d707a54b4aa112dbb91240b3c2777dd2fc74a3051a8819aec0e7f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5086a3fb4d707a54b4aa112dbb91240b3c2777dd2fc74a3051a8819aec0e7f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5086a3fb4d707a54b4aa112dbb91240b3c2777dd2fc74a3051a8819aec0e7f0", kill_on_drop: false }`
[INFO] [stdout] b5086a3fb4d707a54b4aa112dbb91240b3c2777dd2fc74a3051a8819aec0e7f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28e0d2c4170f1e8cc3d2a33ae3dcdf8eec7fa286e73b780ff63c94ebad769859
[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" "28e0d2c4170f1e8cc3d2a33ae3dcdf8eec7fa286e73b780ff63c94ebad769859", kill_on_drop: false }`
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `impl Summary` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |     println!("{}", summary_tweet);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ `impl Summary` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `impl Summary`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `impl Summary` doesn't implement `Debug`
[INFO] [stdout]   --> src/main.rs:46:22
[INFO] [stdout]    |
[INFO] [stdout] 46 |     println!("{:?}", summary_news_article);
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^ `impl Summary` cannot be formatted using `{:?}` because it doesn't implement `Debug`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Debug` is not implemented for `impl Summary`
[INFO] [stdout]    = note: this error originates in the macro `$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 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `traits` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "28e0d2c4170f1e8cc3d2a33ae3dcdf8eec7fa286e73b780ff63c94ebad769859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e0d2c4170f1e8cc3d2a33ae3dcdf8eec7fa286e73b780ff63c94ebad769859", kill_on_drop: false }`
[INFO] [stdout] 28e0d2c4170f1e8cc3d2a33ae3dcdf8eec7fa286e73b780ff63c94ebad769859