[INFO] updating cached repository https://github.com/a186r/leetcode-rust [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] 4e3a367afb923012b0d0a02f17b709a89bde918c [INFO] checking a186r/leetcode-rust against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa186r%2Fleetcode-rust" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. 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[INFO] validating manifest of git repo https://github.com/a186r/leetcode-rust on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 [INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/a186r/leetcode-rust [INFO] finished tweaking git repo https://github.com/a186r/leetcode-rust [INFO] tweaked toml for git repo https://github.com/a186r/leetcode-rust written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/a186r/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 311d3c7b54eac9cba1d2c4e73d37b7bb0c3455649657df0313e61e74a87a0dcf [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" "311d3c7b54eac9cba1d2c4e73d37b7bb0c3455649657df0313e61e74a87a0dcf"` [INFO] [stderr] Checking leetcode-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `to_list` [INFO] [stderr] --> src/n0002_add_two_numbers.rs:20:32 [INFO] [stderr] | [INFO] [stderr] 20 | use super::util::linked_list::{to_list, ListNode}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::intrinsics::truncf32` [INFO] [stderr] --> src/n0002_add_two_numbers.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | use std::intrinsics::truncf32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library [INFO] [stderr] --> src/n0002_add_two_numbers.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | use std::intrinsics::truncf32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable [INFO] [stderr] [INFO] [stderr] warning: unused import: `to_list` [INFO] [stderr] --> src/n0002_add_two_numbers.rs:20:32 [INFO] [stderr] | [INFO] [stderr] 20 | use super::util::linked_list::{to_list, ListNode}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::intrinsics::truncf32` [INFO] [stderr] --> src/n0002_add_two_numbers.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | use std::intrinsics::truncf32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library [INFO] [stderr] --> src/n0002_add_two_numbers.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | use std::intrinsics::truncf32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0658`. [INFO] [stderr] error: could not compile `leetcode-rust`. [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: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0658`. [INFO] [stderr] error: could not compile `leetcode-rust`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "311d3c7b54eac9cba1d2c4e73d37b7bb0c3455649657df0313e61e74a87a0dcf"` [INFO] running `"docker" "rm" "-f" "311d3c7b54eac9cba1d2c4e73d37b7bb0c3455649657df0313e61e74a87a0dcf"` [INFO] [stdout] 311d3c7b54eac9cba1d2c4e73d37b7bb0c3455649657df0313e61e74a87a0dcf