[INFO] cloning repository https://github.com/derricw/rustrsa
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derricw/rustrsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderricw%2Frustrsa"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderricw%2Frustrsa'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25a5a991e8504b1792617e5bff272b15539ea3af
[INFO] checking derricw/rustrsa against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderricw%2Frustrsa" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derricw/rustrsa on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/derricw/rustrsa
[INFO] finished tweaking git repo https://github.com/derricw/rustrsa
[INFO] tweaked toml for git repo https://github.com/derricw/rustrsa written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/derricw/rustrsa already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ramp v0.5.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2d12a2c411b2def3f818ba42eab7278e91bf22131f1495a394edcaac2938cebe
[INFO] running `"docker" "start" "-a" "2d12a2c411b2def3f818ba42eab7278e91bf22131f1495a394edcaac2938cebe"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling cc v1.0.24
[INFO] [stderr]    Compiling rustc-cfg v0.2.0
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking ieee754 v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking mod_exp v1.0.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling ramp v0.5.0
[INFO] [stderr] error[E0432]: unresolved import `std::alloc::Alloc`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.0/src/mem.rs:18:24
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::alloc::{self, Alloc};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        no `Alloc` in `alloc`
[INFO] [stderr]    |                        help: a similar name exists in the module: `alloc`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `replace_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.0/src/int.rs:3639:5
[INFO] [stderr]      |
[INFO] [stderr] 3639 | /     fn replace_one(&mut self) -> Self {
[INFO] [stderr] 3640 | |         mem::replace(self, Self::one())
[INFO] [stderr] 3641 | |     }
[INFO] [stderr]      | |_____^ not a member of trait `std::iter::Step`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `replace_zero` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.0/src/int.rs:3643:5
[INFO] [stderr]      |
[INFO] [stderr] 3643 | /     fn replace_zero(&mut self) -> Self {
[INFO] [stderr] 3644 | |         mem::replace(self, Self::zero())
[INFO] [stderr] 3645 | |     }
[INFO] [stderr]      | |_____^ not a member of trait `std::iter::Step`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.0/src/int.rs:3647:5
[INFO] [stderr]      |
[INFO] [stderr] 3647 | /     fn add_one(&self) -> Self {
[INFO] [stderr] 3648 | |         self + 1
[INFO] [stderr] 3649 | |     }
[INFO] [stderr]      | |_____^ not a member of trait `std::iter::Step`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `sub_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.0/src/int.rs:3651:5
[INFO] [stderr]      |
[INFO] [stderr] 3651 | /     fn sub_one(&self) -> Self {
[INFO] [stderr] 3652 | |         self - 1
[INFO] [stderr] 3653 | |     }
[INFO] [stderr]      | |_____^ not a member of trait `std::iter::Step`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_usize` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.0/src/int.rs:3655:5
[INFO] [stderr]      |
[INFO] [stderr] 3655 | /     fn add_usize(&self, n: usize) -> Option<Self> {
[INFO] [stderr] 3656 | |         Some(self + Int::from(n))
[INFO] [stderr] 3657 | |     }
[INFO] [stderr]      | |_____^ not a member of trait `std::iter::Step`
[INFO] [stderr] 
[INFO] [stderr] error[E0200]: the trait `std::iter::Step` requires an `unsafe impl` declaration
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.0/src/int.rs:3627:1
[INFO] [stderr]      |
[INFO] [stderr] 3627 | / impl std::iter::Step for Int {
[INFO] [stderr] 3628 | |     fn steps_between(start: &Int, end: &Int) -> Option<usize> {
[INFO] [stderr] 3629 | |         let diff = (start - end).abs();
[INFO] [stderr] 3630 | |
[INFO] [stderr] ...    |
[INFO] [stderr] 3657 | |     }
[INFO] [stderr] 3658 | | }
[INFO] [stderr]      | |_^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0200, E0407, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0200`.
[INFO] [stderr] error: could not compile `ramp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2d12a2c411b2def3f818ba42eab7278e91bf22131f1495a394edcaac2938cebe"`
[INFO] running `"docker" "rm" "-f" "2d12a2c411b2def3f818ba42eab7278e91bf22131f1495a394edcaac2938cebe"`
[INFO] [stdout] 2d12a2c411b2def3f818ba42eab7278e91bf22131f1495a394edcaac2938cebe