[INFO] fetching crate competitive-programming-rs 22.0.0... [INFO] checking competitive-programming-rs-22.0.0 against master#de32266a1780aa4ef748ce7f6200a1554fad0aca for pr-75585 [INFO] extracting crate competitive-programming-rs 22.0.0 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate competitive-programming-rs 22.0.0 on toolchain de32266a1780aa4ef748ce7f6200a1554fad0aca [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate competitive-programming-rs 22.0.0 [INFO] finished tweaking crates.io crate competitive-programming-rs 22.0.0 [INFO] tweaked toml for crates.io crate competitive-programming-rs 22.0.0 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4d3b62d915342a6a6b167f20967c6ab161b5e97c76aef1e6b7b51c2cfe804680 [INFO] running `Command { std: "docker" "start" "-a" "4d3b62d915342a6a6b167f20967c6ab161b5e97c76aef1e6b7b51c2cfe804680", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d3b62d915342a6a6b167f20967c6ab161b5e97c76aef1e6b7b51c2cfe804680", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d3b62d915342a6a6b167f20967c6ab161b5e97c76aef1e6b7b51c2cfe804680", kill_on_drop: false }` [INFO] [stdout] 4d3b62d915342a6a6b167f20967c6ab161b5e97c76aef1e6b7b51c2cfe804680 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f6a20fab37b9be8c592dabd1989a3ce8450b973e350bd934d44c95064d1b19a1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f6a20fab37b9be8c592dabd1989a3ce8450b973e350bd934d44c95064d1b19a1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking competitive-programming-rs v22.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `is_reversed` [INFO] [stdout] --> src/graph/min_cost_flow.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | is_reversed: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved imports `rand::distributions::IndependentSample`, `rand::distributions::Range` [INFO] [stdout] --> benches/rolling_hash.rs:5:27 [INFO] [stdout] | [INFO] [stdout] 5 | use rand::distributions::{IndependentSample, Range}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ ^^^^^ no `Range` in `distributions` [INFO] [stdout] | | [INFO] [stdout] | no `IndependentSample` in `distributions` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `rand::StdRng` [INFO] [stdout] --> benches/rolling_hash.rs:6:25 [INFO] [stdout] | [INFO] [stdout] 6 | use rand::{SeedableRng, StdRng}; [INFO] [stdout] | ^^^^^^ no `StdRng` in the root [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] [stderr] error: could not compile `competitive-programming-rs`. [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] [stdout] warning: field is never read: `is_reversed` [INFO] [stdout] --> src/graph/min_cost_flow.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | is_reversed: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "f6a20fab37b9be8c592dabd1989a3ce8450b973e350bd934d44c95064d1b19a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6a20fab37b9be8c592dabd1989a3ce8450b973e350bd934d44c95064d1b19a1", kill_on_drop: false }` [INFO] [stdout] f6a20fab37b9be8c592dabd1989a3ce8450b973e350bd934d44c95064d1b19a1