[INFO] fetching crate lain 0.2.4... [INFO] checking lain-0.2.4 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140 [INFO] extracting crate lain 0.2.4 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate lain 0.2.4 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8 [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate lain 0.2.4 [INFO] finished tweaking crates.io crate lain 0.2.4 [INFO] tweaked toml for crates.io crate lain 0.2.4 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded field-offset v0.3.0 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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] b2d7ed03522dd20d69ae360697e0eea98b422ae554d14b6f57f5888f500cd8aa [INFO] running `"docker" "start" "-a" "b2d7ed03522dd20d69ae360697e0eea98b422ae554d14b6f57f5888f500cd8aa"` [INFO] [stderr] Compiling num-iter v0.1.40 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling field-offset v0.3.0 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Compiling mashup-impl v0.1.9 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling mashup v0.1.9 [INFO] [stderr] Compiling lain_derive v0.2.4 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking lain v0.2.4 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/new_fuzzed.rs:653:33 [INFO] [stderr] | [INFO] [stderr] 653 | let mut ignore_max = true; [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 702 | impl_new_fuzzed!(u8, i8, u16, i16, u32, i32, u64, i64, f32, f64); [INFO] [stderr] | ----------------------------------------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/new_fuzzed.rs:653:33 [INFO] [stderr] | [INFO] [stderr] 653 | let mut ignore_max = true; [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 702 | impl_new_fuzzed!(u8, i8, u16, i16, u32, i32, u64, i64, f32, f64); [INFO] [stderr] | ----------------------------------------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/new_fuzzed.rs:653:33 [INFO] [stderr] | [INFO] [stderr] 653 | let mut ignore_max = true; [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 702 | impl_new_fuzzed!(u8, i8, u16, i16, u32, i32, u64, i64, f32, f64); [INFO] [stderr] | ----------------------------------------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/new_fuzzed.rs:653:33 [INFO] [stderr] | [INFO] [stderr] 653 | let mut ignore_max = true; [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 702 | impl_new_fuzzed!(u8, i8, u16, i16, u32, i32, u64, i64, f32, f64); [INFO] [stderr] | ----------------------------------------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.51s [INFO] running `"docker" "inspect" "b2d7ed03522dd20d69ae360697e0eea98b422ae554d14b6f57f5888f500cd8aa"` [INFO] running `"docker" "rm" "-f" "b2d7ed03522dd20d69ae360697e0eea98b422ae554d14b6f57f5888f500cd8aa"` [INFO] [stdout] b2d7ed03522dd20d69ae360697e0eea98b422ae554d14b6f57f5888f500cd8aa