[INFO] cloning repository https://github.com/sutetako/rust_learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sutetako/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsutetako%2Frust_learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsutetako%2Frust_learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 69ae47d04f313d24b1b40ef9c7ea7c4f9920a3d0 [INFO] checking sutetako/rust_learning against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsutetako%2Frust_learning" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sutetako/rust_learning on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sutetako/rust_learning [INFO] finished tweaking git repo https://github.com/sutetako/rust_learning [INFO] tweaked toml for git repo https://github.com/sutetako/rust_learning written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/sutetako/rust_learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8ae51ee875ad6b61e0273d0aaaae8f8042cf30a1a09478677b4c66b05f376afa [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" "8ae51ee875ad6b61e0273d0aaaae8f8042cf30a1a09478677b4c66b05f376afa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8ae51ee875ad6b61e0273d0aaaae8f8042cf30a1a09478677b4c66b05f376afa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ae51ee875ad6b61e0273d0aaaae8f8042cf30a1a09478677b4c66b05f376afa", kill_on_drop: false }` [INFO] [stdout] 8ae51ee875ad6b61e0273d0aaaae8f8042cf30a1a09478677b4c66b05f376afa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d30b0db9a78fba744f93ff472aa675da6aa1484eefbb29c82fb7480d5acef08 [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" "3d30b0db9a78fba744f93ff472aa675da6aa1484eefbb29c82fb7480d5acef08", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Compiling serde v1.0.99 [INFO] [stderr] Checking serde_json v1.0.40 [INFO] [stderr] Checking rust_learning v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:1814:32 [INFO] [stdout] | [INFO] [stdout] 1814 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:1840:26 [INFO] [stdout] | [INFO] [stdout] 1840 | let writer: &mut Write = &mut buf; // ok [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `core::str::::trim_right_matches`: superseded by `trim_end_matches` [INFO] [stdout] --> src/main.rs:1469:27 [INFO] [stdout] | [INFO] [stdout] 1469 | self.plural().trim_right_matches('s') [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0109]: type arguments are not allowed for this type [INFO] [stdout] --> src/main.rs:1854:15 [INFO] [stdout] | [INFO] [stdout] 1854 | buf::.write_all(b"hello").expect("error"); [INFO] [stdout] | ^^^ type argument not allowed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0109`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_learning`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "3d30b0db9a78fba744f93ff472aa675da6aa1484eefbb29c82fb7480d5acef08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d30b0db9a78fba744f93ff472aa675da6aa1484eefbb29c82fb7480d5acef08", kill_on_drop: false }` [INFO] [stdout] 3d30b0db9a78fba744f93ff472aa675da6aa1484eefbb29c82fb7480d5acef08