[INFO] crate rcmath 0.0.1 is already in cache [INFO] testing rcmath-0.0.1 against beta-2020-06-03 for beta-1.45-1 [INFO] extracting crate rcmath 0.0.1 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate rcmath 0.0.1 on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate rcmath 0.0.1 [INFO] finished tweaking crates.io crate rcmath 0.0.1 [INFO] tweaked toml for crates.io crate rcmath 0.0.1 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-06-03" "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] a22fa4792d092628ad98f1b8175353d8bf379f7c991cae4555012ed31563b1ad [INFO] running `"docker" "start" "-a" "a22fa4792d092628ad98f1b8175353d8bf379f7c991cae4555012ed31563b1ad"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling rcmath v0.0.1 (/opt/rustwide/workdir) [INFO] [stderr] error[E0407]: method `add_usize` is not a member of trait `Step` [INFO] [stderr] --> src/big_num.rs:413:5 [INFO] [stderr] | [INFO] [stderr] 413 | / fn add_usize(&self, n: usize) -> Option { [INFO] [stderr] 414 | | Some(self.add_usize(n)) [INFO] [stderr] 415 | | } [INFO] [stderr] | |_____^ not a member of trait `Step` [INFO] [stderr] [INFO] [stderr] error[E0407]: method `replace_one` is not a member of trait `Step` [INFO] [stderr] --> src/big_num.rs:417:5 [INFO] [stderr] | [INFO] [stderr] 417 | / fn replace_one(&mut self) -> BigNum { [INFO] [stderr] 418 | | self.clone() [INFO] [stderr] 419 | | } [INFO] [stderr] | |_____^ not a member of trait `Step` [INFO] [stderr] [INFO] [stderr] error[E0407]: method `replace_zero` is not a member of trait `Step` [INFO] [stderr] --> src/big_num.rs:421:5 [INFO] [stderr] | [INFO] [stderr] 421 | / fn replace_zero(&mut self) -> BigNum { [INFO] [stderr] 422 | | self.clone() [INFO] [stderr] 423 | | } [INFO] [stderr] | |_____^ not a member of trait `Step` [INFO] [stderr] [INFO] [stderr] error[E0407]: method `add_one` is not a member of trait `Step` [INFO] [stderr] --> src/big_num.rs:425:5 [INFO] [stderr] | [INFO] [stderr] 425 | / fn add_one(&self) -> BigNum { [INFO] [stderr] 426 | | self.clone() + BigNum::new_one() [INFO] [stderr] 427 | | } [INFO] [stderr] | |_____^ not a member of trait `Step` [INFO] [stderr] [INFO] [stderr] error[E0407]: method `sub_one` is not a member of trait `Step` [INFO] [stderr] --> src/big_num.rs:429:5 [INFO] [stderr] | [INFO] [stderr] 429 | / fn sub_one(&self) -> BigNum { [INFO] [stderr] 430 | | self.clone() - BigNum::new_one() [INFO] [stderr] 431 | | } [INFO] [stderr] | |_____^ not a member of trait `Step` [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(step_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/big_num.rs:58:9 [INFO] [stderr] | [INFO] [stderr] 58 | (BigNum::new_empty()..self.clone()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Add` [INFO] [stderr] --> src/math.rs:3:16 [INFO] [stderr] | [INFO] [stderr] 3 | use std::ops::{Add, Div, Mul, Rem}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0200]: the trait `std::iter::Step` requires an `unsafe impl` declaration [INFO] [stderr] --> src/big_num.rs:408:1 [INFO] [stderr] | [INFO] [stderr] 408 | / impl Step for BigNum { [INFO] [stderr] 409 | | fn steps_between(start: &BigNum, end: &BigNum) -> Option { [INFO] [stderr] 410 | | let new_num = end - start; [INFO] [stderr] 411 | | new_num.to_usize() [INFO] [stderr] ... | [INFO] [stderr] 431 | | } [INFO] [stderr] 432 | | } [INFO] [stderr] | |_^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 7 previous errors; 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0200, E0407, E0554. [INFO] [stderr] For more information about an error, try `rustc --explain E0200`. [INFO] [stderr] error: could not compile `rcmath`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "a22fa4792d092628ad98f1b8175353d8bf379f7c991cae4555012ed31563b1ad"` [INFO] running `"docker" "rm" "-f" "a22fa4792d092628ad98f1b8175353d8bf379f7c991cae4555012ed31563b1ad"` [INFO] [stdout] a22fa4792d092628ad98f1b8175353d8bf379f7c991cae4555012ed31563b1ad