[INFO] updating cached repository https://github.com/AngelOnFira/rust-modular-exponentiation-calculator
[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] fce76e1c9d90ce662178c4e86c58453db9c2dd91
[INFO] checking AngelOnFira/rust-modular-exponentiation-calculator against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngelOnFira%2Frust-modular-exponentiation-calculator" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AngelOnFira/rust-modular-exponentiation-calculator on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AngelOnFira/rust-modular-exponentiation-calculator
[INFO] finished tweaking git repo https://github.com/AngelOnFira/rust-modular-exponentiation-calculator
[INFO] tweaked toml for git repo https://github.com/AngelOnFira/rust-modular-exponentiation-calculator written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/AngelOnFira/rust-modular-exponentiation-calculator already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4be93d4b999be6c00aea894784def61da43f7ee43d1df496f1973ca85fba0299
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4be93d4b999be6c00aea894784def61da43f7ee43d1df496f1973ca85fba0299"`
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling rustc-cfg v0.2.0
[INFO] [stderr]     Checking ieee754 v0.2.2
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling ramp v0.3.12
[INFO] [stderr]     Checking modexp v0.2.2
[INFO] [stderr]     Checking mod_pow v0.1.0 (https://github.com/kunerd/mod_pow#c3a01b12)
[INFO] [stderr] error[E0432]: unresolved imports `alloc::allocator`, `alloc::allocator`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/mem.rs:18:24
[INFO] [stderr]    |
[INFO] [stderr] 18 | use alloc::allocator::{self, Alloc};
[INFO] [stderr]    |            ^^^^^^^^^   ^^^^ no `allocator` in the root
[INFO] [stderr]    |            |
[INFO] [stderr]    |            could not find `allocator` in `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/mem.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use alloc::heap;
[INFO] [stderr]    |     ^^^^^^^^^^^ no `heap` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 | use alloc::raw_vec::RawVec;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:152:36
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn with_raw_vec<F: FnOnce(&mut RawVec<Limb>)>(&mut self, f: F) {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:155:27
[INFO] [stderr]     |
[INFO] [stderr] 155 |             let mut vec = RawVec::from_raw_parts(self.ptr.as_mut(), old_cap);
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:939:22
[INFO] [stderr]     |
[INFO] [stderr] 939 |                 drop(RawVec::from_raw_parts(self.ptr.as_mut(),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:163:40
[INFO] [stderr]     |
[INFO] [stderr] 163 |             self.ptr = Unique::new(vec.ptr()).unwrap();
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `cap` found for struct `alloc::raw_vec::RawVec<ll::limb::Limb>` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:164:31
[INFO] [stderr]     |
[INFO] [stderr] 164 |             let new_cap = vec.cap();
[INFO] [stderr]     |                               ^^^ private field, not a method
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:186:36
[INFO] [stderr]     |
[INFO] [stderr] 186 |             ret.with_raw_vec(|v| v.reserve_exact(0, cap as usize))
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:275:15
[INFO] [stderr]     |
[INFO] [stderr] 275 |             v.shrink_to_fit(size);
[INFO] [stderr]     |               ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.3.12/src/int.rs:760:19
[INFO] [stderr]     |
[INFO] [stderr] 760 |                 v.reserve_exact(old_cap, cap as usize - old_cap)
[INFO] [stderr]     |                   ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(raw_vec_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `ramp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4be93d4b999be6c00aea894784def61da43f7ee43d1df496f1973ca85fba0299"`
[INFO] running `"docker" "rm" "-f" "4be93d4b999be6c00aea894784def61da43f7ee43d1df496f1973ca85fba0299"`
[INFO] [stdout] 4be93d4b999be6c00aea894784def61da43f7ee43d1df496f1973ca85fba0299
