[INFO] updating cached repository https://github.com/hannahellis4242/sudoku_solver [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] 71a749e934a0d9f6b468f9e346303f18d6464372 [INFO] checking hannahellis4242/sudoku_solver against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhannahellis4242%2Fsudoku_solver" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hannahellis4242/sudoku_solver on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7 [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/hannahellis4242/sudoku_solver [INFO] finished tweaking git repo https://github.com/hannahellis4242/sudoku_solver [INFO] tweaked toml for git repo https://github.com/hannahellis4242/sudoku_solver written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/hannahellis4242/sudoku_solver already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 4b80448d85657349e625f40ab4c3e617fd24f943aa4a8c5f5ec7bfd8aab09837 [INFO] running `"docker" "start" "-a" "4b80448d85657349e625f40ab4c3e617fd24f943aa4a8c5f5ec7bfd8aab09837"` [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking relay v0.1.1 [INFO] [stderr] Compiling error-chain v0.12.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking want v0.0.4 [INFO] [stderr] Checking jsonway v2.0.0 [INFO] [stderr] Compiling valico v2.4.2 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking publicsuffix v1.5.4 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking hyper v0.11.27 [INFO] [stderr] Checking sudoku_solver2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: the item `helper` is imported redundantly [INFO] [stderr] --> src/sudoku/mod.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 31 | mod helper; [INFO] [stderr] | ----------- the item `helper` is already defined here [INFO] [stderr] ... [INFO] [stderr] 35 | use sudoku::helper; [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/main.rs:153:23 [INFO] [stderr] | [INFO] [stderr] 153 | type Future = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `helper` is imported redundantly [INFO] [stderr] --> src/sudoku/mod.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 31 | mod helper; [INFO] [stderr] | ----------- the item `helper` is already defined here [INFO] [stderr] ... [INFO] [stderr] 35 | use sudoku::helper; [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/main.rs:153:23 [INFO] [stderr] | [INFO] [stderr] 153 | type Future = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 19.04s [INFO] running `"docker" "inspect" "4b80448d85657349e625f40ab4c3e617fd24f943aa4a8c5f5ec7bfd8aab09837"` [INFO] running `"docker" "rm" "-f" "4b80448d85657349e625f40ab4c3e617fd24f943aa4a8c5f5ec7bfd8aab09837"` [INFO] [stdout] 4b80448d85657349e625f40ab4c3e617fd24f943aa4a8c5f5ec7bfd8aab09837