[INFO] cloning repository https://github.com/koba-e964/rust-number-theory [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koba-e964/rust-number-theory" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoba-e964%2Frust-number-theory"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoba-e964%2Frust-number-theory'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6585894b5b711fd471dcb52a402a289eca26a1df [INFO] checking koba-e964/rust-number-theory against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoba-e964%2Frust-number-theory" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/koba-e964/rust-number-theory on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/koba-e964/rust-number-theory [INFO] finished tweaking git repo https://github.com/koba-e964/rust-number-theory [INFO] tweaked toml for git repo https://github.com/koba-e964/rust-number-theory written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/koba-e964/rust-number-theory already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 30dfac6d33e614211de136a9e20a222e4f6ce54befa45558e77c6fb616508420 [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" "30dfac6d33e614211de136a9e20a222e4f6ce54befa45558e77c6fb616508420"` [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Checking num-integer v0.1.39 [INFO] [stderr] Checking num-complex v0.2.1 [INFO] [stderr] Checking num-bigint v0.2.1 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking rust-number-theory v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/polynomial.rs:199:19 [INFO] [stderr] | [INFO] [stderr] 199 | (self as &std::fmt::Display).fmt(f) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::fmt::Display` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `BigInt` [INFO] [stderr] --> src/determinant.rs:3:11 [INFO] [stderr] | [INFO] [stderr] 3 | use num::{BigInt, BigRational, One, Zero}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead [INFO] [stderr] --> src/polynomial.rs:106:31 [INFO] [stderr] | [INFO] [stderr] 106 | let mut tmp = std::mem::uninitialized(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `num::BigInt` [INFO] [stderr] --> src/algebraic.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | use num::BigInt; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/polynomial.rs:199:19 [INFO] [stderr] | [INFO] [stderr] 199 | (self as &std::fmt::Display).fmt(f) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::fmt::Display` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `BigInt` [INFO] [stderr] --> src/determinant.rs:3:11 [INFO] [stderr] | [INFO] [stderr] 3 | use num::{BigInt, BigRational, One, Zero}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/determinant.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | /// det((2, -1; 5, -4)) = -3 [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 47 | / let mat = vec![vec![to_rat(2), to_rat(-1)], [INFO] [stderr] 48 | | vec![to_rat(5), to_rat(-4)]]; [INFO] [stderr] | |____________________________________________________- rustdoc does not generate documentation for statements [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/determinant.rs:53:9 [INFO] [stderr] | [INFO] [stderr] 53 | /// det((3, 2, 1; -1, 2, 2; -2, -3, 2)) = 33 [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 54 | / let mat = vec![vec![to_rat(3), to_rat(2), to_rat(1)], [INFO] [stderr] 55 | | vec![to_rat(-1), to_rat(2), to_rat(2)], [INFO] [stderr] 56 | | vec![to_rat(-2), to_rat(-3), to_rat(2)]]; [INFO] [stderr] | |________________________________________________________________- rustdoc does not generate documentation for statements [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead [INFO] [stderr] --> src/polynomial.rs:106:31 [INFO] [stderr] | [INFO] [stderr] 106 | let mut tmp = std::mem::uninitialized(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/polynomial.rs:255:13 [INFO] [stderr] | [INFO] [stderr] 255 | let mut coef = &tmp[i + b_deg] / &lcb; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/polynomial.rs:278:13 [INFO] [stderr] | [INFO] [stderr] 278 | let mut coef = &tmp[i + b_deg] / lc; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] error[E0502]: cannot borrow `a` as immutable because it is also borrowed as mutable [INFO] [stderr] --> src/determinant.rs:28:39 [INFO] [stderr] | [INFO] [stderr] 28 | a[j][k] -= &factor * &a[i][k]; [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] error: aborting due to previous error; 5 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0502`. [INFO] [stderr] error: could not compile `rust-number-theory`. [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] warning: variable does not need to be mutable [INFO] [stderr] --> src/polynomial.rs:255:13 [INFO] [stderr] | [INFO] [stderr] 255 | let mut coef = &tmp[i + b_deg] / &lcb; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/polynomial.rs:278:13 [INFO] [stderr] | [INFO] [stderr] 278 | let mut coef = &tmp[i + b_deg] / lc; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] error[E0502]: cannot borrow `a` as immutable because it is also borrowed as mutable [INFO] [stderr] --> src/determinant.rs:28:39 [INFO] [stderr] | [INFO] [stderr] 28 | a[j][k] -= &factor * &a[i][k]; [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] error: aborting due to previous error; 8 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0502`. [INFO] [stderr] error: could not compile `rust-number-theory`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "30dfac6d33e614211de136a9e20a222e4f6ce54befa45558e77c6fb616508420"` [INFO] running `"docker" "rm" "-f" "30dfac6d33e614211de136a9e20a222e4f6ce54befa45558e77c6fb616508420"` [INFO] [stdout] 30dfac6d33e614211de136a9e20a222e4f6ce54befa45558e77c6fb616508420