[INFO] updating cached repository dufkan/rush
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dufkan/rush
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dufkan/rush" "work/ex/beta-1.38-1/sources/1.37.0/gh/dufkan/rush"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dufkan/rush'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dufkan/rush" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dufkan/rush"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dufkan/rush'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1fefba20174a32dfd522185883bf638a71105d2b
[INFO] sha for GitHub repo dufkan/rush: 1fefba20174a32dfd522185883bf638a71105d2b
[INFO] validating manifest of dufkan/rush 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 dufkan/rush 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 dufkan/rush
[INFO] finished frobbing dufkan/rush
[INFO] frobbed toml for dufkan/rush written to work/ex/beta-1.38-1/sources/1.37.0/gh/dufkan/rush/Cargo.toml
[INFO] started frobbing dufkan/rush
[INFO] finished frobbing dufkan/rush
[INFO] frobbed toml for dufkan/rush written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dufkan/rush/Cargo.toml
[INFO] crate dufkan/rush 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 dufkan/rush 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-4/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/dufkan/rush:/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] 65c6d94ebdafa26fa19f3f565128ddaca05974d05e0e74df8ee77b605625b54d
[INFO] running `"docker" "start" "-a" "65c6d94ebdafa26fa19f3f565128ddaca05974d05e0e74df8ee77b605625b54d"`
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling directories v1.0.2
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling toml v0.5.0
[INFO] [stderr]    Compiling rush v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `*exec` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/shell.rs:192:17
[INFO] [stderr]     |
[INFO] [stderr] 189 |             let command = exec.args().first();
[INFO] [stderr]     |                           ---- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 192 |                 exec.set_kind(match command.as_str() {
[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 48.03s
[INFO] running `"docker" "inspect" "65c6d94ebdafa26fa19f3f565128ddaca05974d05e0e74df8ee77b605625b54d"`
[INFO] running `"docker" "rm" "-f" "65c6d94ebdafa26fa19f3f565128ddaca05974d05e0e74df8ee77b605625b54d"`
[INFO] [stdout] 65c6d94ebdafa26fa19f3f565128ddaca05974d05e0e74df8ee77b605625b54d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/dufkan/rush:/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] abe99c6b7d269d2fee9c110e664733ae3a06edfd822d175fae75686495750ab9
[INFO] running `"docker" "start" "-a" "abe99c6b7d269d2fee9c110e664733ae3a06edfd822d175fae75686495750ab9"`
[INFO] [stderr]    Compiling rush v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `*exec` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/shell.rs:192:17
[INFO] [stderr]     |
[INFO] [stderr] 189 |             let command = exec.args().first();
[INFO] [stderr]     |                           ---- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 192 |                 exec.set_kind(match command.as_str() {
[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 2.08s
[INFO] running `"docker" "inspect" "abe99c6b7d269d2fee9c110e664733ae3a06edfd822d175fae75686495750ab9"`
[INFO] running `"docker" "rm" "-f" "abe99c6b7d269d2fee9c110e664733ae3a06edfd822d175fae75686495750ab9"`
[INFO] [stdout] abe99c6b7d269d2fee9c110e664733ae3a06edfd822d175fae75686495750ab9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/dufkan/rush:/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] 20d1048e85057c71ce46597aa969ac7de3f16b4268a0968e93d32a4314268b6d
[INFO] running `"docker" "start" "-a" "20d1048e85057c71ce46597aa969ac7de3f16b4268a0968e93d32a4314268b6d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rush-30b2c68370b14141
[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" "20d1048e85057c71ce46597aa969ac7de3f16b4268a0968e93d32a4314268b6d"`
[INFO] running `"docker" "rm" "-f" "20d1048e85057c71ce46597aa969ac7de3f16b4268a0968e93d32a4314268b6d"`
[INFO] [stdout] 20d1048e85057c71ce46597aa969ac7de3f16b4268a0968e93d32a4314268b6d