[INFO] crate nitrogen 0.1.0 is already in cache [INFO] checking nitrogen-0.1.0 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852 [INFO] extracting crate nitrogen 0.1.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate nitrogen 0.1.0 on toolchain e922e6444795ab795fab1943288aee3d543699b8 [INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate nitrogen 0.1.0 [INFO] finished tweaking crates.io crate nitrogen 0.1.0 [INFO] tweaked toml for crates.io crate nitrogen 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] acdfb862e885bb0516cf8db3413c966b136cca25309a4f2e5ea47074dc17877e [INFO] running `"docker" "start" "-a" "acdfb862e885bb0516cf8db3413c966b136cca25309a4f2e5ea47074dc17877e"` [INFO] [stderr] Checking parking_lot_core v0.2.14 [INFO] [stderr] Checking inotify v0.7.0 [INFO] [stderr] Checking parking_lot v0.4.8 [INFO] [stderr] Checking chashmap v2.2.2 [INFO] [stderr] Checking notify v5.0.0-pre.1 [INFO] [stderr] Checking nitrogen v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:11:64 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn really_complicated_code(a: u8, b: u8) -> Result> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:11:64 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn really_complicated_code(a: u8, b: u8) -> Result> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/bin/nitrogen/file_watcher.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 15 | / loop { [INFO] [stderr] 16 | | match rx.recv() { [INFO] [stderr] 17 | | Ok(event) => println!("changed: {:?}", event), [INFO] [stderr] 18 | | Err(err) => println!("watch error: {:?}", err), [INFO] [stderr] 19 | | }; [INFO] [stderr] 20 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 21 | [INFO] [stderr] 22 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/bin/nitrogen/file_watcher.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 15 | / loop { [INFO] [stderr] 16 | | match rx.recv() { [INFO] [stderr] 17 | | Ok(event) => println!("changed: {:?}", event), [INFO] [stderr] 18 | | Err(err) => println!("watch error: {:?}", err), [INFO] [stderr] 19 | | }; [INFO] [stderr] 20 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 21 | [INFO] [stderr] 22 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/nitrogen/server.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | file_watcher::invoke_filewatcher(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/nitrogen/server.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | file_watcher::invoke_filewatcher(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.77s [INFO] running `"docker" "inspect" "acdfb862e885bb0516cf8db3413c966b136cca25309a4f2e5ea47074dc17877e"` [INFO] running `"docker" "rm" "-f" "acdfb862e885bb0516cf8db3413c966b136cca25309a4f2e5ea47074dc17877e"` [INFO] [stdout] acdfb862e885bb0516cf8db3413c966b136cca25309a4f2e5ea47074dc17877e