[INFO] cloning repository https://github.com/Verdex/swarm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Verdex/swarm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerdex%2Fswarm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerdex%2Fswarm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9e3a9a4e222dbc291aabec5050b29e2057f0493
[INFO] building Verdex/swarm 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%2FVerdex%2Fswarm" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Verdex/swarm 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/Verdex/swarm
[INFO] finished tweaking git repo https://github.com/Verdex/swarm
[INFO] tweaked toml for git repo https://github.com/Verdex/swarm written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Verdex/swarm 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b3ae5db5bbaef0bbedfd53cc4c61822c87e725006f4bc0ec2504ce3e9793ea92
[INFO] running `Command { std: "docker" "start" "-a" "b3ae5db5bbaef0bbedfd53cc4c61822c87e725006f4bc0ec2504ce3e9793ea92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3ae5db5bbaef0bbedfd53cc4c61822c87e725006f4bc0ec2504ce3e9793ea92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3ae5db5bbaef0bbedfd53cc4c61822c87e725006f4bc0ec2504ce3e9793ea92", kill_on_drop: false }`
[INFO] [stdout] b3ae5db5bbaef0bbedfd53cc4c61822c87e725006f4bc0ec2504ce3e9793ea92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 566dd95ccfc71840c55a57ad82dad9c0da11131ef303e19b8dd55c390344937b
[INFO] running `Command { std: "docker" "start" "-a" "566dd95ccfc71840c55a57ad82dad9c0da11131ef303e19b8dd55c390344937b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling swarm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SortAbility`
[INFO] [stdout]  --> src/main.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use agent::{Agent, SortAbility, Action};
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i2` is never read
[INFO] [stdout]   --> src/main.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut i2 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Observe` and `Influence` are never constructed
[INFO] [stdout]  --> src/agent.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Action {
[INFO] [stdout]   |          ------ variants in this enum
[INFO] [stdout] 6 |     Observe,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     Influence,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Action` has a derived impl for the trait `Debug`, 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 `move_towards` is never used
[INFO] [stdout]   --> src/agent.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl SortAbility {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn move_towards(&mut self, goal : &Self, dist : u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `age` is never read
[INFO] [stdout]   --> src/agent.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Agent {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub age : u32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Agent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `agent_count` should have an upper case name
[INFO] [stdout]   --> src/main.rs:71:11
[INFO] [stdout]    |
[INFO] [stdout] 71 |     const agent_count : usize = 30;
[INFO] [stdout]    |           ^^^^^^^^^^^ help: convert the identifier to upper case: `AGENT_COUNT`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "566dd95ccfc71840c55a57ad82dad9c0da11131ef303e19b8dd55c390344937b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "566dd95ccfc71840c55a57ad82dad9c0da11131ef303e19b8dd55c390344937b", kill_on_drop: false }`
[INFO] [stdout] 566dd95ccfc71840c55a57ad82dad9c0da11131ef303e19b8dd55c390344937b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bf66cc49366ee7195b1df907b483aa85c4d85b66f6309d4626ab9ab001920a74
[INFO] running `Command { std: "docker" "start" "-a" "bf66cc49366ee7195b1df907b483aa85c4d85b66f6309d4626ab9ab001920a74", kill_on_drop: false }`
[INFO] [stderr]    Compiling swarm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SortAbility`
[INFO] [stdout]  --> src/main.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use agent::{Agent, SortAbility, Action};
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i2` is never read
[INFO] [stdout]   --> src/main.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut i2 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Observe` and `Influence` are never constructed
[INFO] [stdout]  --> src/agent.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Action {
[INFO] [stdout]   |          ------ variants in this enum
[INFO] [stdout] 6 |     Observe,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     Influence,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Action` has a derived impl for the trait `Debug`, 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 `move_towards` is never used
[INFO] [stdout]   --> src/agent.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl SortAbility {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn move_towards(&mut self, goal : &Self, dist : u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `age` is never read
[INFO] [stdout]   --> src/agent.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Agent {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub age : u32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Agent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `agent_count` should have an upper case name
[INFO] [stdout]   --> src/main.rs:71:11
[INFO] [stdout]    |
[INFO] [stdout] 71 |     const agent_count : usize = 30;
[INFO] [stdout]    |           ^^^^^^^^^^^ help: convert the identifier to upper case: `AGENT_COUNT`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "bf66cc49366ee7195b1df907b483aa85c4d85b66f6309d4626ab9ab001920a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf66cc49366ee7195b1df907b483aa85c4d85b66f6309d4626ab9ab001920a74", kill_on_drop: false }`
[INFO] [stdout] bf66cc49366ee7195b1df907b483aa85c4d85b66f6309d4626ab9ab001920a74