[INFO] updating cached repository ssiloti/snap-dedup
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ssiloti/snap-dedup
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ssiloti/snap-dedup" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ssiloti/snap-dedup"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ssiloti/snap-dedup'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ssiloti/snap-dedup" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ssiloti/snap-dedup"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ssiloti/snap-dedup'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 07c27a3d537c6cdcbbdaf0dd5df787e3bc776773
[INFO] sha for GitHub repo ssiloti/snap-dedup: 07c27a3d537c6cdcbbdaf0dd5df787e3bc776773
[INFO] validating manifest of ssiloti/snap-dedup on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ssiloti/snap-dedup on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ssiloti/snap-dedup
[INFO] finished frobbing ssiloti/snap-dedup
[INFO] frobbed toml for ssiloti/snap-dedup written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/ssiloti/snap-dedup/Cargo.toml
[INFO] started frobbing ssiloti/snap-dedup
[INFO] finished frobbing ssiloti/snap-dedup
[INFO] frobbed toml for ssiloti/snap-dedup written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ssiloti/snap-dedup/Cargo.toml
[INFO] crate ssiloti/snap-dedup already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ssiloti/snap-dedup against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/ssiloti/snap-dedup:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bf7142ffc8a5082ae2e823878c9f6efee4f8750acb9006cf183bba7eaf6c9369
[INFO] running `"docker" "start" "-a" "bf7142ffc8a5082ae2e823878c9f6efee4f8750acb9006cf183bba7eaf6c9369"`
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking ioctl v0.3.3
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]     Checking flate2 v0.2.19
[INFO] [stderr]     Checking btrfs v1.2.1
[INFO] [stderr]     Checking snap-dedup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `btrfs::FileExtent`
[INFO] [stderr]  --> src/extent_scanner.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use btrfs::FileExtent;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `print_groups::*`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use print_groups::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_size_groups`
[INFO] [stderr]  --> src/print_groups.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn print_size_groups(groups: &HashMap<u64, FileGroup>)
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `btrfs::FileExtent`
[INFO] [stderr]  --> src/extent_scanner.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use btrfs::FileExtent;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `print_groups::*`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use print_groups::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_size_groups`
[INFO] [stderr]  --> src/print_groups.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn print_size_groups(groups: &HashMap<u64, FileGroup>)
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `"docker" "inspect" "bf7142ffc8a5082ae2e823878c9f6efee4f8750acb9006cf183bba7eaf6c9369"`
[INFO] running `"docker" "rm" "-f" "bf7142ffc8a5082ae2e823878c9f6efee4f8750acb9006cf183bba7eaf6c9369"`
[INFO] [stdout] bf7142ffc8a5082ae2e823878c9f6efee4f8750acb9006cf183bba7eaf6c9369