[INFO] updating cached repository https://github.com/remexre/luml
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] decddf86746c720f46c78aad1d1802740f55830f
[INFO] checking remexre/luml against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fluml" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/remexre/luml on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/remexre/luml
[INFO] finished tweaking git repo https://github.com/remexre/luml
[INFO] tweaked toml for git repo https://github.com/remexre/luml written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/remexre/luml already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0aa19affffafbb09a066a0558c0617e09c7302d93277b60a423ee7d2df954aea
[INFO] running `"docker" "start" "-a" "0aa19affffafbb09a066a0558c0617e09c7302d93277b60a423ee7d2df954aea"`
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling block-padding v0.1.3
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling derive_more v0.14.0
[INFO] [stderr]     Checking stderrlog v0.4.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]     Checking libremexre v0.1.4
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]    Compiling luml v0.1.1-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 let mut dtor = Dtor::default();
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 let mut dtor = Dtor::default();
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 44s
[INFO] running `"docker" "inspect" "0aa19affffafbb09a066a0558c0617e09c7302d93277b60a423ee7d2df954aea"`
[INFO] running `"docker" "rm" "-f" "0aa19affffafbb09a066a0558c0617e09c7302d93277b60a423ee7d2df954aea"`
[INFO] [stdout] 0aa19affffafbb09a066a0558c0617e09c7302d93277b60a423ee7d2df954aea