[INFO] updating cached repository jamespharaoh/btrfs-dedupe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jamespharaoh/btrfs-dedupe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jamespharaoh/btrfs-dedupe" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jamespharaoh/btrfs-dedupe"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jamespharaoh/btrfs-dedupe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jamespharaoh/btrfs-dedupe" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jamespharaoh/btrfs-dedupe"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jamespharaoh/btrfs-dedupe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 72c6a301d20f935827b994db210bf0a1e121273a
[INFO] sha for GitHub repo jamespharaoh/btrfs-dedupe: 72c6a301d20f935827b994db210bf0a1e121273a
[INFO] validating manifest of jamespharaoh/btrfs-dedupe on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jamespharaoh/btrfs-dedupe on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jamespharaoh/btrfs-dedupe
[INFO] finished frobbing jamespharaoh/btrfs-dedupe
[INFO] frobbed toml for jamespharaoh/btrfs-dedupe written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jamespharaoh/btrfs-dedupe/Cargo.toml
[INFO] started frobbing jamespharaoh/btrfs-dedupe
[INFO] finished frobbing jamespharaoh/btrfs-dedupe
[INFO] frobbed toml for jamespharaoh/btrfs-dedupe written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jamespharaoh/btrfs-dedupe/Cargo.toml
[INFO] crate jamespharaoh/btrfs-dedupe already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jamespharaoh/btrfs-dedupe against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-4/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jamespharaoh/btrfs-dedupe:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 28a2a70c8438bb63d0a3dfda2642db34e7f6330a6594111422d3414b114dba5b
[INFO] running `"docker" "start" "-a" "28a2a70c8438bb63d0a3dfda2642db34e7f6330a6594111422d3414b114dba5b"`
[INFO] [stderr]    Compiling btrfs-dedupe v1.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[ macro_use ]
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[ macro_use ]
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/database/file_database.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |         source: & mut Read,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/database/file_database.rs:150:26
[INFO] [stderr]     |
[INFO] [stderr] 150 |         database_output: & mut Write,
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[ macro_use ]
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[ macro_use ]
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/database/file_database.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |         source: & mut Read,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/database/file_database.rs:150:26
[INFO] [stderr]     |
[INFO] [stderr] 150 |         database_output: & mut Write,
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/commands/dedupe_command.rs:627:6
[INFO] [stderr]     |
[INFO] [stderr] 627 |     let mut file_database =
[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/commands/dedupe_command.rs:627:6
[INFO] [stderr]     |
[INFO] [stderr] 627 |     let mut file_database =
[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: type alias is never used: `HashLists`
[INFO] [stderr]   --> src/types.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / pub type HashLists =
[INFO] [stderr] 14 | |     HashMap <Hash, Vec <PathBuf>>;
[INFO] [stderr]    | |__________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CompareFileMetadataLists`
[INFO] [stderr]   --> src/types.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / pub type CompareFileMetadataLists =
[INFO] [stderr] 23 | |     HashMap <CompareFileMetadata, Vec <PathBuf>>;
[INFO] [stderr]    | |_________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `HashLists`
[INFO] [stderr]   --> src/types.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / pub type HashLists =
[INFO] [stderr] 14 | |     HashMap <Hash, Vec <PathBuf>>;
[INFO] [stderr]    | |__________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CompareFileMetadataLists`
[INFO] [stderr]   --> src/types.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / pub type CompareFileMetadataLists =
[INFO] [stderr] 23 | |     HashMap <CompareFileMetadata, Vec <PathBuf>>;
[INFO] [stderr]    | |_________________________________________________^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.05s
[INFO] running `"docker" "inspect" "28a2a70c8438bb63d0a3dfda2642db34e7f6330a6594111422d3414b114dba5b"`
[INFO] running `"docker" "rm" "-f" "28a2a70c8438bb63d0a3dfda2642db34e7f6330a6594111422d3414b114dba5b"`
[INFO] [stdout] 28a2a70c8438bb63d0a3dfda2642db34e7f6330a6594111422d3414b114dba5b