[INFO] cloning repository https://github.com/mattferrin/inverse-pairs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattferrin/inverse-pairs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattferrin%2Finverse-pairs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattferrin%2Finverse-pairs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13ab59ea5af731efaaa1a68fc7958347b137c512
[INFO] building mattferrin/inverse-pairs 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%2Fmattferrin%2Finverse-pairs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattferrin/inverse-pairs 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/mattferrin/inverse-pairs
[INFO] finished tweaking git repo https://github.com/mattferrin/inverse-pairs
[INFO] tweaked toml for git repo https://github.com/mattferrin/inverse-pairs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mattferrin/inverse-pairs 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1643b4f04081cccbc95c2e14388998a64561b9ea15490f700fd664c23fc7ef85
[INFO] running `Command { std: "docker" "start" "-a" "1643b4f04081cccbc95c2e14388998a64561b9ea15490f700fd664c23fc7ef85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1643b4f04081cccbc95c2e14388998a64561b9ea15490f700fd664c23fc7ef85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1643b4f04081cccbc95c2e14388998a64561b9ea15490f700fd664c23fc7ef85", kill_on_drop: false }`
[INFO] [stdout] 1643b4f04081cccbc95c2e14388998a64561b9ea15490f700fd664c23fc7ef85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 396b6d648fc2a40ea1428849f6c795049f64df875f80bacbe67b034bc055dc44
[INFO] running `Command { std: "docker" "start" "-a" "396b6d648fc2a40ea1428849f6c795049f64df875f80bacbe67b034bc055dc44", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling uuid v1.3.0
[INFO] [stderr]    Compiling inverse-pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `furthest_coordinates_toroidal` is never used
[INFO] [stdout]  --> src/furthest_coordinates_toroidal.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn furthest_coordinates_toroidal(x: u32, y: u32) -> (u32, u32) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Event` is never constructed
[INFO] [stdout]  --> src/process_event.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Event {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_event` is never used
[INFO] [stdout]   --> src/process_event.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn process_event(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `toroidal_distance_squared` is never used
[INFO] [stdout]  --> src/toroidal_distance_squared.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn toroidal_distance_squared(x1: u32, y1: u32, x2: u32, y2: u32) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `toroidal_rolling_flee_average` is never used
[INFO] [stdout]  --> src/toroidal_rolling_flee_average.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn toroidal_rolling_flee_average(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "396b6d648fc2a40ea1428849f6c795049f64df875f80bacbe67b034bc055dc44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "396b6d648fc2a40ea1428849f6c795049f64df875f80bacbe67b034bc055dc44", kill_on_drop: false }`
[INFO] [stdout] 396b6d648fc2a40ea1428849f6c795049f64df875f80bacbe67b034bc055dc44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0f226b5b73cc23d00e8d54c708df361304d65db6a279b19e1e78156dc1917b15
[INFO] running `Command { std: "docker" "start" "-a" "0f226b5b73cc23d00e8d54c708df361304d65db6a279b19e1e78156dc1917b15", kill_on_drop: false }`
[INFO] [stderr]    Compiling inverse-pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/process_event.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         process_event(&event, &mut buffer, &mut map, &Some((0, 0)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let _ = process_event(&event, &mut buffer, &mut map, &Some((0, 0)));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/process_event.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         process_event(&event1, &mut buffer, &mut map, &Some((0, 0)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = process_event(&event1, &mut buffer, &mut map, &Some((0, 0)));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/process_event.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         process_event(&event2, &mut buffer, &mut map, &Some((0, 0)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 107 |         let _ = process_event(&event2, &mut buffer, &mut map, &Some((0, 0)));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "0f226b5b73cc23d00e8d54c708df361304d65db6a279b19e1e78156dc1917b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f226b5b73cc23d00e8d54c708df361304d65db6a279b19e1e78156dc1917b15", kill_on_drop: false }`
[INFO] [stdout] 0f226b5b73cc23d00e8d54c708df361304d65db6a279b19e1e78156dc1917b15