[INFO] fetching crate elma 0.1.14... [INFO] checking elma-0.1.14 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] extracting crate elma 0.1.14 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate elma 0.1.14 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate elma 0.1.14 [INFO] finished tweaking crates.io crate elma 0.1.14 [INFO] tweaked toml for crates.io crate elma 0.1.14 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 634f47498270b389df789521f2e1ef61d3d6a960ff64fa58facbe500aa11e0b8 [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" "634f47498270b389df789521f2e1ef61d3d6a960ff64fa58facbe500aa11e0b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "634f47498270b389df789521f2e1ef61d3d6a960ff64fa58facbe500aa11e0b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "634f47498270b389df789521f2e1ef61d3d6a960ff64fa58facbe500aa11e0b8", kill_on_drop: false }` [INFO] [stdout] 634f47498270b389df789521f2e1ef61d3d6a960ff64fa58facbe500aa11e0b8 [INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] 8f74355c6ab1cfb5b8491c2e7031341461110069c2a4545b010ef65307b4a819 [INFO] running `Command { std: "docker" "start" "-a" "8f74355c6ab1cfb5b8491c2e7031341461110069c2a4545b010ef65307b4a819", kill_on_drop: false }` [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking elma v0.1.14 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lev.rs:837:9 [INFO] [stdout] | [INFO] [stdout] 837 | for mut t in top10.iter_mut().take(TOP10_SIZE) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lev.rs:837:9 [INFO] [stdout] | [INFO] [stdout] 837 | for mut t in top10.iter_mut().take(TOP10_SIZE) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/state.rs:497:9 [INFO] [stdout] | [INFO] [stdout] 497 | for mut t in buffer.iter_mut() { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/state.rs:497:9 [INFO] [stdout] | [INFO] [stdout] 497 | for mut t in buffer.iter_mut() { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> tests/state.rs:55:32 [INFO] [stdout] | [INFO] [stdout] 55 | assert!(false, format!("State files differ at: {}", i)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the assert!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 55 - assert!(false, format!("State files differ at: {}", i)) [INFO] [stdout] 55 + assert!(false, "State files differ at: {}", i) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> tests/state.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | / &file_original [INFO] [stdout] 50 | | .iter() [INFO] [stdout] 51 | | .zip(&file_saved) [INFO] [stdout] 52 | | .enumerate() [INFO] [stdout] ... | [INFO] [stdout] 56 | | } [INFO] [stdout] 57 | | }); [INFO] [stdout] | |__________^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 49 | let _ = &file_original [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.15s [INFO] running `Command { std: "docker" "inspect" "8f74355c6ab1cfb5b8491c2e7031341461110069c2a4545b010ef65307b4a819", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f74355c6ab1cfb5b8491c2e7031341461110069c2a4545b010ef65307b4a819", kill_on_drop: false }` [INFO] [stdout] 8f74355c6ab1cfb5b8491c2e7031341461110069c2a4545b010ef65307b4a819