[INFO] updating cached repository https://github.com/AuroransSolis/fractions_and_matrices [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 1c9dc186e532e4fe050bd19d9dfdadb6e3931d69 [INFO] testing AuroransSolis/fractions_and_matrices against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAuroransSolis%2Ffractions_and_matrices" "/workspace/builds/worker-12/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AuroransSolis/fractions_and_matrices on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/AuroransSolis/fractions_and_matrices [INFO] finished tweaking git repo https://github.com/AuroransSolis/fractions_and_matrices [INFO] tweaked toml for git repo https://github.com/AuroransSolis/fractions_and_matrices written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/AuroransSolis/fractions_and_matrices already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 590024aa2aa98b0c7d938cf4b49112bb111686a59ceb1d225aab9ecd2368f496 [INFO] running `"docker" "start" "-a" "590024aa2aa98b0c7d938cf4b49112bb111686a59ceb1d225aab9ecd2368f496"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling num-traits v0.2.5 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-bigint v0.2.0 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num-complex v0.2.0 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling rand_core v0.2.1 [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling fractions_and_matrices v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/fractions/macros.rs:35:26 [INFO] [stderr] | [INFO] [stderr] 35 | let (mut start, mut end) = num_string_tmp.split_at_mut(decimal_ind); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] ::: src/fractions/base.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | into_frac_float!{f32 f64} [INFO] [stderr] | ------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/fractions/macros.rs:35:37 [INFO] [stderr] | [INFO] [stderr] 35 | let (mut start, mut end) = num_string_tmp.split_at_mut(decimal_ind); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] ::: src/fractions/base.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | into_frac_float!{f32 f64} [INFO] [stderr] | ------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/fractions/macros.rs:35:26 [INFO] [stderr] | [INFO] [stderr] 35 | let (mut start, mut end) = num_string_tmp.split_at_mut(decimal_ind); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] ::: src/fractions/base.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | into_frac_float!{f32 f64} [INFO] [stderr] | ------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable [INFO] [stderr] --> src/matrices/transforms.rs:141:42 [INFO] [stderr] | [INFO] [stderr] 141 | self[(target, b)] += self[(tool, b)].clone(); [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] 1028 | transforms_impl!{Matrix: Matrix, AugmentedMatrix: AugmentedMatrix} [INFO] [stderr] | ------------------------------------------------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable [INFO] [stderr] --> src/matrices/transforms.rs:149:42 [INFO] [stderr] | [INFO] [stderr] 149 | self[(target, b)] -= self[(tool, b)].clone(); [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] 1028 | transforms_impl!{Matrix: Matrix, AugmentedMatrix: AugmentedMatrix} [INFO] [stderr] | ------------------------------------------------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 3 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0502`. [INFO] [stderr] error: could not compile `fractions_and_matrices`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "590024aa2aa98b0c7d938cf4b49112bb111686a59ceb1d225aab9ecd2368f496"` [INFO] running `"docker" "rm" "-f" "590024aa2aa98b0c7d938cf4b49112bb111686a59ceb1d225aab9ecd2368f496"` [INFO] [stdout] 590024aa2aa98b0c7d938cf4b49112bb111686a59ceb1d225aab9ecd2368f496