[INFO] fetching crate basic-tutorial 0.1.0... [INFO] checking basic-tutorial-0.1.0 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073 [INFO] extracting crate basic-tutorial 0.1.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate basic-tutorial 0.1.0 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate basic-tutorial 0.1.0 [INFO] finished tweaking crates.io crate basic-tutorial 0.1.0 [INFO] tweaked toml for crates.io crate basic-tutorial 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 31442ce668ce8acfbac5601e5d001930afe0bd8387896763ef6be1e2a4c28c9e [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" "31442ce668ce8acfbac5601e5d001930afe0bd8387896763ef6be1e2a4c28c9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "31442ce668ce8acfbac5601e5d001930afe0bd8387896763ef6be1e2a4c28c9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31442ce668ce8acfbac5601e5d001930afe0bd8387896763ef6be1e2a4c28c9e", kill_on_drop: false }` [INFO] [stdout] 31442ce668ce8acfbac5601e5d001930afe0bd8387896763ef6be1e2a4c28c9e [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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] 1be945e44d3c85c840533323d57a24dc5162972fa64f0466edd4fac37ea5cc6b [INFO] running `Command { std: "docker" "start" "-a" "1be945e44d3c85c840533323d57a24dc5162972fa64f0466edd4fac37ea5cc6b", kill_on_drop: false }` [INFO] [stderr] Checking basic-tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> src/function_test.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | { x + y } [INFO] [stdout] | ^^^^^^^^^ help: remove these braces [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around block return value [INFO] [stdout] --> src/function_test.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | { x + y } [INFO] [stdout] | ^^^^^^^^^ help: remove these braces [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.41s [INFO] running `Command { std: "docker" "inspect" "1be945e44d3c85c840533323d57a24dc5162972fa64f0466edd4fac37ea5cc6b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1be945e44d3c85c840533323d57a24dc5162972fa64f0466edd4fac37ea5cc6b", kill_on_drop: false }` [INFO] [stdout] 1be945e44d3c85c840533323d57a24dc5162972fa64f0466edd4fac37ea5cc6b