[INFO] crate lain 0.2.4 is already in cache
[INFO] checking lain-0.2.4 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate lain 0.2.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate lain 0.2.4 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "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-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "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] eaea8bdc9c1f2638f8c5873b1a329ec5ccff65821e3feaee661494166d299841
[INFO] running `"docker" "start" "-a" "eaea8bdc9c1f2638f8c5873b1a329ec5ccff65821e3feaee661494166d299841"`
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]    Compiling field-offset v0.3.0
[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 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]     Finished dev [unoptimized + debuginfo] target(s) in 13.33s
[INFO] running `"docker" "inspect" "eaea8bdc9c1f2638f8c5873b1a329ec5ccff65821e3feaee661494166d299841"`
[INFO] running `"docker" "rm" "-f" "eaea8bdc9c1f2638f8c5873b1a329ec5ccff65821e3feaee661494166d299841"`
[INFO] [stdout] eaea8bdc9c1f2638f8c5873b1a329ec5ccff65821e3feaee661494166d299841
