[INFO] fetching crate ai 0.1.0... [INFO] checking ai-0.1.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] extracting crate ai 0.1.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate ai 0.1.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate ai 0.1.0 [INFO] finished tweaking crates.io crate ai 0.1.0 [INFO] tweaked toml for crates.io crate ai 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] bd583928fe33314da3594cbe9623f380adb6fa02f1059114f978fb7f9783950d [INFO] running `Command { std: "docker" "start" "-a" "bd583928fe33314da3594cbe9623f380adb6fa02f1059114f978fb7f9783950d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd583928fe33314da3594cbe9623f380adb6fa02f1059114f978fb7f9783950d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd583928fe33314da3594cbe9623f380adb6fa02f1059114f978fb7f9783950d", kill_on_drop: false }` [INFO] [stdout] bd583928fe33314da3594cbe9623f380adb6fa02f1059114f978fb7f9783950d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 7afbac98e5de5d84cb6749891f828da636ce968e985c733f7f14c236bbeeed8b [INFO] running `Command { std: "docker" "start" "-a" "7afbac98e5de5d84cb6749891f828da636ce968e985c733f7f14c236bbeeed8b", kill_on_drop: false }` [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking ai v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `new_indv` is never read [INFO] [stdout] --> src/chromosome.rs:139:13 [INFO] [stdout] | [INFO] [stdout] 139 | let mut new_indv = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_indv` is never read [INFO] [stdout] --> src/chromosome.rs:149:13 [INFO] [stdout] | [INFO] [stdout] 149 | let mut new_indv = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/chromosome.rs:103:13 [INFO] [stdout] | [INFO] [stdout] 103 | let mut individual = Chromosome::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.70s [INFO] running `Command { std: "docker" "inspect" "7afbac98e5de5d84cb6749891f828da636ce968e985c733f7f14c236bbeeed8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7afbac98e5de5d84cb6749891f828da636ce968e985c733f7f14c236bbeeed8b", kill_on_drop: false }` [INFO] [stdout] 7afbac98e5de5d84cb6749891f828da636ce968e985c733f7f14c236bbeeed8b