[INFO] cloning repository https://github.com/klyye/hangman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/klyye/hangman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklyye%2Fhangman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklyye%2Fhangman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ede3a8c3f848d0fd1ee829b635b2edb48f5a3cf
[INFO] building klyye/hangman 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%2Fklyye%2Fhangman" "/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/klyye/hangman 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/klyye/hangman
[INFO] finished tweaking git repo https://github.com/klyye/hangman
[INFO] tweaked toml for git repo https://github.com/klyye/hangman written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/klyye/hangman 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] abc3f56a8875e4b1fea1f7a098d26a93ef309e322a188922e99da22764d022ce
[INFO] running `Command { std: "docker" "start" "-a" "abc3f56a8875e4b1fea1f7a098d26a93ef309e322a188922e99da22764d022ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abc3f56a8875e4b1fea1f7a098d26a93ef309e322a188922e99da22764d022ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abc3f56a8875e4b1fea1f7a098d26a93ef309e322a188922e99da22764d022ce", kill_on_drop: false }`
[INFO] [stdout] abc3f56a8875e4b1fea1f7a098d26a93ef309e322a188922e99da22764d022ce
[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] 3ce65b52329ce33dd10f76b1043fe91f99d72bfad2b1011b6a7e18e4c2aba986
[INFO] running `Command { std: "docker" "start" "-a" "3ce65b52329ce33dd10f76b1043fe91f99d72bfad2b1011b6a7e18e4c2aba986", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling hangman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `len_min`
[INFO] [stdout]   --> src/chooser.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_min`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_max`
[INFO] [stdout]   --> src/chooser.rs:64:30
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_path`
[INFO] [stdout]   --> src/chooser.rs:64:44
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `letter`
[INFO] [stdout]   --> src/chooser.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn guess(&mut self, letter: char) {
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_evil`
[INFO] [stdout]  --> src/main.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn game_loop(is_evil: bool, words_file: &str) {
[INFO] [stdout]   |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_evil`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_min`
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let len_min = 5;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_max`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let len_max = 18; // "telecommunications"
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `Command { std: "docker" "inspect" "3ce65b52329ce33dd10f76b1043fe91f99d72bfad2b1011b6a7e18e4c2aba986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ce65b52329ce33dd10f76b1043fe91f99d72bfad2b1011b6a7e18e4c2aba986", kill_on_drop: false }`
[INFO] [stdout] 3ce65b52329ce33dd10f76b1043fe91f99d72bfad2b1011b6a7e18e4c2aba986
[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] 8a4cd37a3d34ad76daee34cc8529109bec16705e2c89441dfc182b422e56dfb1
[INFO] running `Command { std: "docker" "start" "-a" "8a4cd37a3d34ad76daee34cc8529109bec16705e2c89441dfc182b422e56dfb1", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `len_min`
[INFO] [stdout]   --> src/chooser.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_min`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_max`
[INFO] [stdout]   --> src/chooser.rs:64:30
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_path`
[INFO] [stdout]   --> src/chooser.rs:64:44
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `letter`
[INFO] [stdout]   --> src/chooser.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn guess(&mut self, letter: char) {
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hangman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `is_evil`
[INFO] [stdout]  --> src/main.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn game_loop(is_evil: bool, words_file: &str) {
[INFO] [stdout]   |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_evil`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_min`
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let len_min = 5;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_max`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let len_max = 18; // "telecommunications"
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_min`
[INFO] [stdout]   --> src/chooser.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_min`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len_max`
[INFO] [stdout]   --> src/chooser.rs:64:30
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_len_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_path`
[INFO] [stdout]   --> src/chooser.rs:64:44
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(len_min: u32, len_max: u32, file_path: &str) -> Self {
[INFO] [stdout]    |                                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `letter`
[INFO] [stdout]   --> src/chooser.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn guess(&mut self, letter: char) {
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "8a4cd37a3d34ad76daee34cc8529109bec16705e2c89441dfc182b422e56dfb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a4cd37a3d34ad76daee34cc8529109bec16705e2c89441dfc182b422e56dfb1", kill_on_drop: false }`
[INFO] [stdout] 8a4cd37a3d34ad76daee34cc8529109bec16705e2c89441dfc182b422e56dfb1