[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-1.38-1/sources/1.37.0/gh/Pungyeon/duplicate-detect"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Pungyeon/duplicate-detect'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Pungyeon/duplicate-detect" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Pungyeon/duplicate-detect"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Pungyeon/duplicate-detect on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Pungyeon/duplicate-detect against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2b297ffab91b87461a50122e2881481de5a41bb64f758d3fdf162cfb60a60244
[INFO] running `"docker" "start" "-a" "2b297ffab91b87461a50122e2881481de5a41bb64f758d3fdf162cfb60a60244"`
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[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 8.45s
[INFO] running `"docker" "inspect" "2b297ffab91b87461a50122e2881481de5a41bb64f758d3fdf162cfb60a60244"`
[INFO] running `"docker" "rm" "-f" "2b297ffab91b87461a50122e2881481de5a41bb64f758d3fdf162cfb60a60244"`
[INFO] [stdout] 2b297ffab91b87461a50122e2881481de5a41bb64f758d3fdf162cfb60a60244
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cbc3626910f56bff7bb7c23d095bad3907b6c69a5c12aa0aae7da895976590fa
[INFO] running `"docker" "start" "-a" "cbc3626910f56bff7bb7c23d095bad3907b6c69a5c12aa0aae7da895976590fa"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.74s
[INFO] running `"docker" "inspect" "cbc3626910f56bff7bb7c23d095bad3907b6c69a5c12aa0aae7da895976590fa"`
[INFO] running `"docker" "rm" "-f" "cbc3626910f56bff7bb7c23d095bad3907b6c69a5c12aa0aae7da895976590fa"`
[INFO] [stdout] cbc3626910f56bff7bb7c23d095bad3907b6c69a5c12aa0aae7da895976590fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 38f125d8a22cd239cde46ca1c8009758b35e94c599c0c82a4ea07f696417d1bf
[INFO] running `"docker" "start" "-a" "38f125d8a22cd239cde46ca1c8009758b35e94c599c0c82a4ea07f696417d1bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/my_crate-64d606c3564b5af5
[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" "38f125d8a22cd239cde46ca1c8009758b35e94c599c0c82a4ea07f696417d1bf"`
[INFO] running `"docker" "rm" "-f" "38f125d8a22cd239cde46ca1c8009758b35e94c599c0c82a4ea07f696417d1bf"`
[INFO] [stdout] 38f125d8a22cd239cde46ca1c8009758b35e94c599c0c82a4ea07f696417d1bf