[INFO] updating cached repository https://github.com/prasannavl/rust-away [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] bf99a89d9b152a58a4f519e834f8fdaa77d77a1a [INFO] checking prasannavl/rust-away against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprasannavl%2Frust-away" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/prasannavl/rust-away 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/prasannavl/rust-away [INFO] finished tweaking git repo https://github.com/prasannavl/rust-away [INFO] tweaked toml for git repo https://github.com/prasannavl/rust-away written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/prasannavl/rust-away 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 4f257df9da8c200db15a0504de341597772593da3195246c3f78db8349b7e8a9 [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" "4f257df9da8c200db15a0504de341597772593da3195246c3f78db8349b7e8a9"` [INFO] [stderr] Checking num-traits v0.1.40 [INFO] [stderr] Checking libc v0.2.29 [INFO] [stderr] Checking primal-bit v0.2.3 [INFO] [stderr] Checking primal-sieve v0.2.6 [INFO] [stderr] Checking num-integer v0.1.35 [INFO] [stderr] Checking num-complex v0.1.40 [INFO] [stderr] Checking rand v0.3.16 [INFO] [stderr] Checking num-iter v0.1.34 [INFO] [stderr] Checking num-bigint v0.1.40 [INFO] [stderr] Checking num-rational v0.1.39 [INFO] [stderr] Checking num v0.1.40 [INFO] [stderr] Checking primal-check v0.2.2 [INFO] [stderr] Checking primal v0.2.3 [INFO] [stderr] Checking rust-away v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let i = initial_scores.iter(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `scores` [INFO] [stderr] --> src/main.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let scores: HashMap<_, _> = teams.iter().zip(initial_scores.iter()).collect(); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | std::io::stdout().write(msg.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let i = initial_scores.iter(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `scores` [INFO] [stderr] --> src/main.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let scores: HashMap<_, _> = teams.iter().zip(initial_scores.iter()).collect(); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | std::io::stdout().write(msg.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.45s [INFO] running `"docker" "inspect" "4f257df9da8c200db15a0504de341597772593da3195246c3f78db8349b7e8a9"` [INFO] running `"docker" "rm" "-f" "4f257df9da8c200db15a0504de341597772593da3195246c3f78db8349b7e8a9"` [INFO] [stdout] 4f257df9da8c200db15a0504de341597772593da3195246c3f78db8349b7e8a9