[INFO] cloning repository https://github.com/mrkaspa/genetic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrkaspa/genetic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkaspa%2Fgenetic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkaspa%2Fgenetic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82ce1a93af5ba7b0433c9498078517f331659a5b
[INFO] building mrkaspa/genetic against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkaspa%2Fgenetic" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrkaspa/genetic on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrkaspa/genetic
[INFO] finished tweaking git repo https://github.com/mrkaspa/genetic
[INFO] tweaked toml for git repo https://github.com/mrkaspa/genetic written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mrkaspa/genetic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a122d0b6b90f2de1e51655a1a929b1b6cdcffe27b714b7fde9ead4ee5bbdbc07
[INFO] running `Command { std: "docker" "start" "-a" "a122d0b6b90f2de1e51655a1a929b1b6cdcffe27b714b7fde9ead4ee5bbdbc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a122d0b6b90f2de1e51655a1a929b1b6cdcffe27b714b7fde9ead4ee5bbdbc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a122d0b6b90f2de1e51655a1a929b1b6cdcffe27b714b7fde9ead4ee5bbdbc07", kill_on_drop: false }`
[INFO] [stdout] a122d0b6b90f2de1e51655a1a929b1b6cdcffe27b714b7fde9ead4ee5bbdbc07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 939e1fe9c8d6bd3cad33a01e39dfcdd8afecd03e96d7ffc7c15149033a9bc6bc
[INFO] running `Command { std: "docker" "start" "-a" "939e1fe9c8d6bd3cad33a01e39dfcdd8afecd03e96d7ffc7c15149033a9bc6bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling genetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/framework.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Chromosome<T> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub genes: T,
[INFO] [stdout] 7 |     size: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Chromosome` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `termination_condition` is never used
[INFO] [stdout]   --> src/framework.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait IFramework<T> {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn termination_condition(self, population: Population<T>) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "939e1fe9c8d6bd3cad33a01e39dfcdd8afecd03e96d7ffc7c15149033a9bc6bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939e1fe9c8d6bd3cad33a01e39dfcdd8afecd03e96d7ffc7c15149033a9bc6bc", kill_on_drop: false }`
[INFO] [stdout] 939e1fe9c8d6bd3cad33a01e39dfcdd8afecd03e96d7ffc7c15149033a9bc6bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fc4abecb4dcd02e3fe1cfd325035605e5cceddc0d31b930dce0e8a33112398d
[INFO] running `Command { std: "docker" "start" "-a" "8fc4abecb4dcd02e3fe1cfd325035605e5cceddc0d31b930dce0e8a33112398d", kill_on_drop: false }`
[INFO] [stderr]    Compiling genetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/framework.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Chromosome<T> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub genes: T,
[INFO] [stdout] 7 |     size: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Chromosome` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `termination_condition` is never used
[INFO] [stdout]   --> src/framework.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait IFramework<T> {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn termination_condition(self, population: Population<T>) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "8fc4abecb4dcd02e3fe1cfd325035605e5cceddc0d31b930dce0e8a33112398d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc4abecb4dcd02e3fe1cfd325035605e5cceddc0d31b930dce0e8a33112398d", kill_on_drop: false }`
[INFO] [stdout] 8fc4abecb4dcd02e3fe1cfd325035605e5cceddc0d31b930dce0e8a33112398d