[INFO] cloning repository studio-lucia/fldtools
[INFO] running `"git" "clone" "--bare" "git://github.com/studio-lucia/fldtools.git" "work/cache/sources/gh/studio-lucia/fldtools"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/studio-lucia/fldtools'...
[INFO] running `"git" "clone" "work/cache/sources/gh/studio-lucia/fldtools" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/studio-lucia/fldtools"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/studio-lucia/fldtools'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/studio-lucia/fldtools" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/studio-lucia/fldtools"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/studio-lucia/fldtools'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c42f781ce5cc6a484267a82b2222dd83430c9a80
[INFO] sha for GitHub repo studio-lucia/fldtools: c42f781ce5cc6a484267a82b2222dd83430c9a80
[INFO] validating manifest of studio-lucia/fldtools on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of studio-lucia/fldtools on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing studio-lucia/fldtools
[INFO] finished frobbing studio-lucia/fldtools
[INFO] frobbed toml for studio-lucia/fldtools written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/studio-lucia/fldtools/Cargo.toml
[INFO] started frobbing studio-lucia/fldtools
[INFO] finished frobbing studio-lucia/fldtools
[INFO] frobbed toml for studio-lucia/fldtools written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/studio-lucia/fldtools/Cargo.toml
[INFO] crate studio-lucia/fldtools already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking studio-lucia/fldtools against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/studio-lucia/fldtools:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fec2c68b9e2d18d62d1e0c7fcc63139b1f513e431fa4a6b52c7bb94cc6bb2982
[INFO] running `"docker" "start" "-a" "fec2c68b9e2d18d62d1e0c7fcc63139b1f513e431fa4a6b52c7bb94cc6bb2982"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.6.0
[INFO] [stderr]     Checking itertools v0.6.1
[INFO] [stderr]     Checking clap v2.25.0
[INFO] [stderr]     Checking fldtools v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/fldunpack.rs:24:16
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn write_chunk(mut reader : &mut BufReader<&mut File>, mut target : &File, chunk_data : &Chunk) -> ::std::io::Result<u32> {
[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/bin/fldunpack.rs:24:16
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn write_chunk(mut reader : &mut BufReader<&mut File>, mut target : &File, chunk_data : &Chunk) -> ::std::io::Result<u32> {
[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 8.08s
[INFO] running `"docker" "inspect" "fec2c68b9e2d18d62d1e0c7fcc63139b1f513e431fa4a6b52c7bb94cc6bb2982"`
[INFO] running `"docker" "rm" "-f" "fec2c68b9e2d18d62d1e0c7fcc63139b1f513e431fa4a6b52c7bb94cc6bb2982"`
[INFO] [stdout] fec2c68b9e2d18d62d1e0c7fcc63139b1f513e431fa4a6b52c7bb94cc6bb2982