[INFO] cloning repository https://github.com/wimpykid26/rust-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wimpykid26/rust-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwimpykid26%2Frust-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwimpykid26%2Frust-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bff1d8f9f6d4c8f38a1297896ecc0afa4860467f [INFO] checking wimpykid26/rust-examples against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwimpykid26%2Frust-examples" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wimpykid26/rust-examples on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wimpykid26/rust-examples [INFO] finished tweaking git repo https://github.com/wimpykid26/rust-examples [INFO] tweaked toml for git repo https://github.com/wimpykid26/rust-examples written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/wimpykid26/rust-examples already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", 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] ed5ba408236275d89e226d6a2c4b442f93e9cf8fddaaaca05b82f96642b4231e [INFO] running `Command { std: "docker" "start" "-a" "ed5ba408236275d89e226d6a2c4b442f93e9cf8fddaaaca05b82f96642b4231e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ed5ba408236275d89e226d6a2c4b442f93e9cf8fddaaaca05b82f96642b4231e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ed5ba408236275d89e226d6a2c4b442f93e9cf8fddaaaca05b82f96642b4231e", kill_on_drop: false }` [INFO] [stdout] ed5ba408236275d89e226d6a2c4b442f93e9cf8fddaaaca05b82f96642b4231e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 07f0026d731ea2870554425525f1709dd1d3ee37cbb9c24a1a110b5f1d6a7d08 [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" "07f0026d731ea2870554425525f1709dd1d3ee37cbb9c24a1a110b5f1d6a7d08", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking rust-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/expressions/loops.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | 'inner: loop { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/expressions/match_cases.rs:58:14 [INFO] [stdout] | [INFO] [stdout] 58 | n @ 1...12 => println!("Age is {}", n), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/expressions/match_cases.rs:78:11 [INFO] [stdout] | [INFO] [stdout] 78 | 12...19 => println!("Teen"), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/functions/closures.rs:19:27 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn return_fn() -> Box { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Fn()` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/expressions/loops.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 25 | break 'outer; [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] 26 | } [INFO] [stdout] 27 | println!("This point will never be reached"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/expressions/loops.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | 'inner: loop { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/expressions/match_cases.rs:58:14 [INFO] [stdout] | [INFO] [stdout] 58 | n @ 1...12 => println!("Age is {}", n), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/expressions/match_cases.rs:78:11 [INFO] [stdout] | [INFO] [stdout] 78 | 12...19 => println!("Teen"), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/functions/closures.rs:19:27 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn return_fn() -> Box { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Fn()` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/expressions/loops.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 25 | break 'outer; [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] 26 | } [INFO] [stdout] 27 | println!("This point will never be reached"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/expressions/match_cases.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | 1 | 2 | 3 => println!("This is either 1, 2 or 3"), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reference` [INFO] [stdout] --> src/expressions/match_cases.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let ref reference = 5; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/expressions/match_cases.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | 1 | 2 | 3 => println!("This is either 1, 2 or 3"), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reference` [INFO] [stdout] --> src/expressions/match_cases.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let ref reference = 5; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.77s [INFO] running `Command { std: "docker" "inspect" "07f0026d731ea2870554425525f1709dd1d3ee37cbb9c24a1a110b5f1d6a7d08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07f0026d731ea2870554425525f1709dd1d3ee37cbb9c24a1a110b5f1d6a7d08", kill_on_drop: false }` [INFO] [stdout] 07f0026d731ea2870554425525f1709dd1d3ee37cbb9c24a1a110b5f1d6a7d08