[INFO] updating cached repository andymeneely/git-churn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andymeneely/git-churn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andymeneely/git-churn" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/andymeneely/git-churn"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/andymeneely/git-churn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andymeneely/git-churn" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/andymeneely/git-churn"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/andymeneely/git-churn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 95db680783b522bb83d4e8b99c2b15535c608ac9
[INFO] sha for GitHub repo andymeneely/git-churn: 95db680783b522bb83d4e8b99c2b15535c608ac9
[INFO] validating manifest of andymeneely/git-churn on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of andymeneely/git-churn on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing andymeneely/git-churn
[INFO] finished frobbing andymeneely/git-churn
[INFO] frobbed toml for andymeneely/git-churn written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/andymeneely/git-churn/Cargo.toml
[INFO] started frobbing andymeneely/git-churn
[INFO] finished frobbing andymeneely/git-churn
[INFO] frobbed toml for andymeneely/git-churn written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/andymeneely/git-churn/Cargo.toml
[INFO] crate andymeneely/git-churn already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking andymeneely/git-churn against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-6/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/andymeneely/git-churn:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e548a3e2a667d2209a40b5431f1b0a64c1460cfb30da660a1c7733889047547e
[INFO] running `"docker" "start" "-a" "e548a3e2a667d2209a40b5431f1b0a64c1460cfb30da660a1c7733889047547e"`
[INFO] [stderr]     Checking libz-sys v1.0.25
[INFO] [stderr]     Checking libssh2-sys v0.2.11
[INFO] [stderr]     Checking curl-sys v0.4.16
[INFO] [stderr]     Checking libgit2-sys v0.7.11
[INFO] [stderr]     Checking git2 v0.8.0
[INFO] [stderr]     Checking git-churn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn file_cb(d:DiffDelta, progress:f32 ) -> bool {
[INFO] [stderr]    |            ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `progress`
[INFO] [stderr]   --> src/main.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn file_cb(d:DiffDelta, progress:f32 ) -> bool {
[INFO] [stderr]    |                         ^^^^^^^^ help: consider prefixing with an underscore: `_progress`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:43:14
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn binary_cb(d:DiffDelta, db:DiffBinary ) -> bool {
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `db`
[INFO] [stderr]   --> src/main.rs:43:27
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn binary_cb(d:DiffDelta, db:DiffBinary ) -> bool {
[INFO] [stderr]    |                           ^^ help: consider prefixing with an underscore: `_db`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn hunk_cb(d:DiffDelta, dh:DiffHunk) -> bool {
[INFO] [stderr]    |            ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dh`
[INFO] [stderr]   --> src/main.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn hunk_cb(d:DiffDelta, dh:DiffHunk) -> bool {
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_dh`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn line_cb(d:DiffDelta, o:Option<DiffHunk>, l:DiffLine ) -> bool {
[INFO] [stderr]    |            ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o`
[INFO] [stderr]   --> src/main.rs:49:25
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn line_cb(d:DiffDelta, o:Option<DiffHunk>, l:DiffLine ) -> bool {
[INFO] [stderr]    |                         ^ help: consider prefixing with an underscore: `_o`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_callback`
[INFO] [stderr]   --> src/main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn print_callback(d:DiffDelta, o:Option<DiffHunk>, l:DiffLine ) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         diff.foreach(&mut file_cb, Some(&mut binary_cb), Some(&mut hunk_cb), Some(&mut line_cb));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn file_cb(d:DiffDelta, progress:f32 ) -> bool {
[INFO] [stderr]    |            ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `progress`
[INFO] [stderr]   --> src/main.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn file_cb(d:DiffDelta, progress:f32 ) -> bool {
[INFO] [stderr]    |                         ^^^^^^^^ help: consider prefixing with an underscore: `_progress`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:43:14
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn binary_cb(d:DiffDelta, db:DiffBinary ) -> bool {
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `db`
[INFO] [stderr]   --> src/main.rs:43:27
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn binary_cb(d:DiffDelta, db:DiffBinary ) -> bool {
[INFO] [stderr]    |                           ^^ help: consider prefixing with an underscore: `_db`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn hunk_cb(d:DiffDelta, dh:DiffHunk) -> bool {
[INFO] [stderr]    |            ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dh`
[INFO] [stderr]   --> src/main.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn hunk_cb(d:DiffDelta, dh:DiffHunk) -> bool {
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_dh`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]   --> src/main.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn line_cb(d:DiffDelta, o:Option<DiffHunk>, l:DiffLine ) -> bool {
[INFO] [stderr]    |            ^ help: consider prefixing with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o`
[INFO] [stderr]   --> src/main.rs:49:25
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn line_cb(d:DiffDelta, o:Option<DiffHunk>, l:DiffLine ) -> bool {
[INFO] [stderr]    |                         ^ help: consider prefixing with an underscore: `_o`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_callback`
[INFO] [stderr]   --> src/main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn print_callback(d:DiffDelta, o:Option<DiffHunk>, l:DiffLine ) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         diff.foreach(&mut file_cb, Some(&mut binary_cb), Some(&mut hunk_cb), Some(&mut line_cb));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.34s
[INFO] running `"docker" "inspect" "e548a3e2a667d2209a40b5431f1b0a64c1460cfb30da660a1c7733889047547e"`
[INFO] running `"docker" "rm" "-f" "e548a3e2a667d2209a40b5431f1b0a64c1460cfb30da660a1c7733889047547e"`
[INFO] [stdout] e548a3e2a667d2209a40b5431f1b0a64c1460cfb30da660a1c7733889047547e