[INFO] updating cached repository JamesHinshelwood/needle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JamesHinshelwood/needle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JamesHinshelwood/needle" "work/ex/beta-1.38-1/sources/1.37.0/gh/JamesHinshelwood/needle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JamesHinshelwood/needle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JamesHinshelwood/needle" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JamesHinshelwood/needle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JamesHinshelwood/needle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2e6da72b2865a732521b213d3e05b2aaece8ac5f
[INFO] sha for GitHub repo JamesHinshelwood/needle: 2e6da72b2865a732521b213d3e05b2aaece8ac5f
[INFO] validating manifest of JamesHinshelwood/needle 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 JamesHinshelwood/needle 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 JamesHinshelwood/needle
[INFO] finished frobbing JamesHinshelwood/needle
[INFO] frobbed toml for JamesHinshelwood/needle written to work/ex/beta-1.38-1/sources/1.37.0/gh/JamesHinshelwood/needle/Cargo.toml
[INFO] started frobbing JamesHinshelwood/needle
[INFO] finished frobbing JamesHinshelwood/needle
[INFO] frobbed toml for JamesHinshelwood/needle written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JamesHinshelwood/needle/Cargo.toml
[INFO] crate JamesHinshelwood/needle 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 JamesHinshelwood/needle against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JamesHinshelwood/needle:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] c750997d44b69f0bb2b67d2b3353ae86fa1b62440b6d1be9d25bb51ad56b2e70
[INFO] running `"docker" "start" "-a" "c750997d44b69f0bb2b67d2b3353ae86fa1b62440b6d1be9d25bb51ad56b2e70"`
[INFO] [stderr]    Compiling approx v0.3.1
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling nalgebra v0.16.13
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.16.13/src/base/cg.rs:291:44
[INFO] [stderr]     |
[INFO] [stderr] 291 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling needle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.54s
[INFO] running `"docker" "inspect" "c750997d44b69f0bb2b67d2b3353ae86fa1b62440b6d1be9d25bb51ad56b2e70"`
[INFO] running `"docker" "rm" "-f" "c750997d44b69f0bb2b67d2b3353ae86fa1b62440b6d1be9d25bb51ad56b2e70"`
[INFO] [stdout] c750997d44b69f0bb2b67d2b3353ae86fa1b62440b6d1be9d25bb51ad56b2e70
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JamesHinshelwood/needle:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] cd1d0b242aff59e85274a9f342db208234136f081b2870c257c419d7262cfcba
[INFO] running `"docker" "start" "-a" "cd1d0b242aff59e85274a9f342db208234136f081b2870c257c419d7262cfcba"`
[INFO] [stderr]    Compiling needle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "cd1d0b242aff59e85274a9f342db208234136f081b2870c257c419d7262cfcba"`
[INFO] running `"docker" "rm" "-f" "cd1d0b242aff59e85274a9f342db208234136f081b2870c257c419d7262cfcba"`
[INFO] [stdout] cd1d0b242aff59e85274a9f342db208234136f081b2870c257c419d7262cfcba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JamesHinshelwood/needle:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b7212f38506ef150843ff433e9fe692cec15f8214dddb7bb37f6b8541e859b7a
[INFO] running `"docker" "start" "-a" "b7212f38506ef150843ff433e9fe692cec15f8214dddb7bb37f6b8541e859b7a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/needle-8367ea0c77da1f32
[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" "b7212f38506ef150843ff433e9fe692cec15f8214dddb7bb37f6b8541e859b7a"`
[INFO] running `"docker" "rm" "-f" "b7212f38506ef150843ff433e9fe692cec15f8214dddb7bb37f6b8541e859b7a"`
[INFO] [stdout] b7212f38506ef150843ff433e9fe692cec15f8214dddb7bb37f6b8541e859b7a