[INFO] cloning repository https://github.com/cs-cmd/hangman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cs-cmd/hangman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcs-cmd%2Fhangman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcs-cmd%2Fhangman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7fdc11681e4920d4764647fd4e150033870cad4
[INFO] building cs-cmd/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%2Fcs-cmd%2Fhangman" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cs-cmd/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/cs-cmd/hangman
[INFO] finished tweaking git repo https://github.com/cs-cmd/hangman
[INFO] tweaked toml for git repo https://github.com/cs-cmd/hangman written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cs-cmd/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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a2ca49bb32e997bfcab16b2f9cc11cd0ddbfc55a037df17d6c8803ef87db7c77
[INFO] running `Command { std: "docker" "start" "-a" "a2ca49bb32e997bfcab16b2f9cc11cd0ddbfc55a037df17d6c8803ef87db7c77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2ca49bb32e997bfcab16b2f9cc11cd0ddbfc55a037df17d6c8803ef87db7c77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ca49bb32e997bfcab16b2f9cc11cd0ddbfc55a037df17d6c8803ef87db7c77", kill_on_drop: false }`
[INFO] [stdout] a2ca49bb32e997bfcab16b2f9cc11cd0ddbfc55a037df17d6c8803ef87db7c77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fa0906f2f554087960cd48a2a5a6432b587ed9ea4de39238e25055628c3e138a
[INFO] running `Command { std: "docker" "start" "-a" "fa0906f2f554087960cd48a2a5a6432b587ed9ea4de39238e25055628c3e138a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.12
[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_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `guessed_word`
[INFO] [stdout]    --> src/hangman.rs:165:30
[INFO] [stdout]     |
[INFO] [stdout] 165 |     fn guess_word(&mut self, guessed_word: String) -> GuessResult {
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_guessed_word`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/game_setup.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn serialize(c: Config) -> Result<(), String> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/game_setup.rs:49:24
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn deserialize(file_name: &str) -> Result<Config, String> {
[INFO] [stdout]    |                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `BODY_PARTS`, `draw_hangman_ascii`, and `guess_word` are never used
[INFO] [stdout]    --> src/hangman.rs:27:11
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Hangman {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27  |     const BODY_PARTS: [char; 6] = [
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn draw_hangman_ascii(&self) -> () {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn guess_word(&mut self, guessed_word: String) -> GuessResult {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "fa0906f2f554087960cd48a2a5a6432b587ed9ea4de39238e25055628c3e138a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa0906f2f554087960cd48a2a5a6432b587ed9ea4de39238e25055628c3e138a", kill_on_drop: false }`
[INFO] [stdout] fa0906f2f554087960cd48a2a5a6432b587ed9ea4de39238e25055628c3e138a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 8daca8e8125991a52f3f4b1e2fc70a3f3ecf54024fbe25ba0c44b2b9cf519cad
[INFO] running `Command { std: "docker" "start" "-a" "8daca8e8125991a52f3f4b1e2fc70a3f3ecf54024fbe25ba0c44b2b9cf519cad", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `guessed_word`
[INFO] [stdout]    --> src/hangman.rs:165:30
[INFO] [stdout]     |
[INFO] [stdout] 165 |     fn guess_word(&mut self, guessed_word: String) -> GuessResult {
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_guessed_word`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/game_setup.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn serialize(c: Config) -> Result<(), String> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/game_setup.rs:49:24
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn deserialize(file_name: &str) -> Result<Config, String> {
[INFO] [stdout]    |                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `BODY_PARTS`, `draw_hangman_ascii`, and `guess_word` are never used
[INFO] [stdout]    --> src/hangman.rs:27:11
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Hangman {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27  |     const BODY_PARTS: [char; 6] = [
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn draw_hangman_ascii(&self) -> () {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn guess_word(&mut self, guessed_word: String) -> GuessResult {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hangman_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `guessed_word`
[INFO] [stdout]    --> src/hangman.rs:165:30
[INFO] [stdout]     |
[INFO] [stdout] 165 |     fn guess_word(&mut self, guessed_word: String) -> GuessResult {
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_guessed_word`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/game_setup.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn serialize(c: Config) -> Result<(), String> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/game_setup.rs:49:24
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn deserialize(file_name: &str) -> Result<Config, String> {
[INFO] [stdout]    |                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `BODY_PARTS`, `draw_hangman_ascii`, and `guess_word` are never used
[INFO] [stdout]    --> src/hangman.rs:27:11
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Hangman {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27  |     const BODY_PARTS: [char; 6] = [
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn draw_hangman_ascii(&self) -> () {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn guess_word(&mut self, guessed_word: String) -> GuessResult {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "8daca8e8125991a52f3f4b1e2fc70a3f3ecf54024fbe25ba0c44b2b9cf519cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8daca8e8125991a52f3f4b1e2fc70a3f3ecf54024fbe25ba0c44b2b9cf519cad", kill_on_drop: false }`
[INFO] [stdout] 8daca8e8125991a52f3f4b1e2fc70a3f3ecf54024fbe25ba0c44b2b9cf519cad