[INFO] updating cached repository Pungyeon/duplicate-detect
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Pungyeon/duplicate-detect
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Pungyeon/duplicate-detect" "work/ex/beta-1.37-6/sources/1.36.0/gh/Pungyeon/duplicate-detect"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Pungyeon/duplicate-detect'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Pungyeon/duplicate-detect" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Pungyeon/duplicate-detect"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Pungyeon/duplicate-detect'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3247bb09ebd08d97cfba5f27cbc476f9b25d99a7
[INFO] sha for GitHub repo Pungyeon/duplicate-detect: 3247bb09ebd08d97cfba5f27cbc476f9b25d99a7
[INFO] validating manifest of Pungyeon/duplicate-detect on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Pungyeon/duplicate-detect on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Pungyeon/duplicate-detect
[INFO] finished frobbing Pungyeon/duplicate-detect
[INFO] frobbed toml for Pungyeon/duplicate-detect written to work/ex/beta-1.37-6/sources/1.36.0/gh/Pungyeon/duplicate-detect/Cargo.toml
[INFO] started frobbing Pungyeon/duplicate-detect
[INFO] finished frobbing Pungyeon/duplicate-detect
[INFO] frobbed toml for Pungyeon/duplicate-detect written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Pungyeon/duplicate-detect/Cargo.toml
[INFO] crate Pungyeon/duplicate-detect already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Pungyeon/duplicate-detect against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Pungyeon/duplicate-detect:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] eb8f17aeab4f3030195db860a722924b49f5d1eaa4c90f5df003c45fdeab2dc0
[INFO] running `"docker" "start" "-a" "eb8f17aeab4f3030195db860a722924b49f5d1eaa4c90f5df003c45fdeab2dc0"`
[INFO] [stderr]    Compiling my_crate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             let d = self.hmap.get(&hash).unwrap();
[INFO] [stderr]    |                     --------- immutable borrow occurs here
[INFO] [stderr] 43 |             self.insert_dupe(d.to_string(), filepath.clone());
[INFO] [stderr]    |             ^^^^             - immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "eb8f17aeab4f3030195db860a722924b49f5d1eaa4c90f5df003c45fdeab2dc0"`
[INFO] running `"docker" "rm" "-f" "eb8f17aeab4f3030195db860a722924b49f5d1eaa4c90f5df003c45fdeab2dc0"`
[INFO] [stdout] eb8f17aeab4f3030195db860a722924b49f5d1eaa4c90f5df003c45fdeab2dc0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Pungyeon/duplicate-detect:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 73991b30d312005f6e45c8fc2135c79674607e70fe5f8172aea5ca8160d3715a
[INFO] running `"docker" "start" "-a" "73991b30d312005f6e45c8fc2135c79674607e70fe5f8172aea5ca8160d3715a"`
[INFO] [stderr]    Compiling my_crate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             let d = self.hmap.get(&hash).unwrap();
[INFO] [stderr]    |                     --------- immutable borrow occurs here
[INFO] [stderr] 43 |             self.insert_dupe(d.to_string(), filepath.clone());
[INFO] [stderr]    |             ^^^^             - immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "73991b30d312005f6e45c8fc2135c79674607e70fe5f8172aea5ca8160d3715a"`
[INFO] running `"docker" "rm" "-f" "73991b30d312005f6e45c8fc2135c79674607e70fe5f8172aea5ca8160d3715a"`
[INFO] [stdout] 73991b30d312005f6e45c8fc2135c79674607e70fe5f8172aea5ca8160d3715a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Pungyeon/duplicate-detect:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] b18eb308a276e4b02f6cba4457981b49bf2823c729ff2f1531ef824199495366
[INFO] running `"docker" "start" "-a" "b18eb308a276e4b02f6cba4457981b49bf2823c729ff2f1531ef824199495366"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/my_crate-9bdd11f426245504
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b18eb308a276e4b02f6cba4457981b49bf2823c729ff2f1531ef824199495366"`
[INFO] running `"docker" "rm" "-f" "b18eb308a276e4b02f6cba4457981b49bf2823c729ff2f1531ef824199495366"`
[INFO] [stdout] b18eb308a276e4b02f6cba4457981b49bf2823c729ff2f1531ef824199495366