[INFO] updating cached repository https://github.com/c7x43t/hello_cargo2 [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ca56607fc36473d00a8f684a3409f93a3db5c595 [INFO] checking c7x43t/hello_cargo2 against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc7x43t%2Fhello_cargo2" "work/builds/worker-4/source"` [INFO] [stderr] Cloning into 'work/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/c7x43t/hello_cargo2 on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/c7x43t/hello_cargo2 [INFO] finished tweaking git repo https://github.com/c7x43t/hello_cargo2 [INFO] tweaked toml for git repo https://github.com/c7x43t/hello_cargo2 written to work/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/c7x43t/hello_cargo2 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c8ee71c644ab4a170a393b50e4469bb4070c7818f28e0a8a67e8d1f8f7e2cc0b [INFO] running `"docker" "start" "-a" "c8ee71c644ab4a170a393b50e4469bb4070c7818f28e0a8a67e8d1f8f7e2cc0b"` [INFO] [stderr] Compiling syn v0.15.35 [INFO] [stderr] Compiling num-complex v0.2.2 [INFO] [stderr] Checking alga v0.5.4 [INFO] [stderr] Checking ndarray v0.12.1 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Checking sprs v0.6.4 [INFO] [stderr] warning[E0502]: cannot borrow `indptr` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sprs-0.6.4/src/sparse/triplet_iter.rs:122:26 [INFO] [stderr] | [INFO] [stderr] 122 | indptr[i] += indptr[i - 1]; [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] Checking hello_cargo2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 45.83s [INFO] running `"docker" "inspect" "c8ee71c644ab4a170a393b50e4469bb4070c7818f28e0a8a67e8d1f8f7e2cc0b"` [INFO] running `"docker" "rm" "-f" "c8ee71c644ab4a170a393b50e4469bb4070c7818f28e0a8a67e8d1f8f7e2cc0b"` [INFO] [stdout] c8ee71c644ab4a170a393b50e4469bb4070c7818f28e0a8a67e8d1f8f7e2cc0b