[INFO] cloning repository https://github.com/RavuAlHemio/adaptive_hangman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RavuAlHemio/adaptive_hangman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRavuAlHemio%2Fadaptive_hangman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRavuAlHemio%2Fadaptive_hangman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6050589bb32553205d0ecb6832fda06f6845808b
[INFO] checking RavuAlHemio/adaptive_hangman against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRavuAlHemio%2Fadaptive_hangman" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RavuAlHemio/adaptive_hangman
[INFO] finished tweaking git repo https://github.com/RavuAlHemio/adaptive_hangman
[INFO] tweaked toml for git repo https://github.com/RavuAlHemio/adaptive_hangman written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RavuAlHemio/adaptive_hangman on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RavuAlHemio/adaptive_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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0ceb4c6b10c1920f8ed5fbe8aeb0f71bbb26e0f7e404bf83d7a48a7fcc9f708
[INFO] running `Command { std: "docker" "start" "-a" "b0ceb4c6b10c1920f8ed5fbe8aeb0f71bbb26e0f7e404bf83d7a48a7fcc9f708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ceb4c6b10c1920f8ed5fbe8aeb0f71bbb26e0f7e404bf83d7a48a7fcc9f708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ceb4c6b10c1920f8ed5fbe8aeb0f71bbb26e0f7e404bf83d7a48a7fcc9f708", kill_on_drop: false }`
[INFO] [stdout] b0ceb4c6b10c1920f8ed5fbe8aeb0f71bbb26e0f7e404bf83d7a48a7fcc9f708
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b29bc024620d147a09f905a8477c75d41562f56e5840edce1c59a3afe9a5b57
[INFO] running `Command { std: "docker" "start" "-a" "9b29bc024620d147a09f905a8477c75d41562f56e5840edce1c59a3afe9a5b57", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking adaptive_hangman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/ah_player/opts.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     #[clap(short = "d", long = "dict", default_value = "dict.txt", value_names = &["DICTFILE"], about = "Specifies the dictionary file to...
[INFO] [stdout] 7 | |     pub dict_path: String,
[INFO] [stdout]   | |_________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/ah_player/opts.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(required = true, value_names = &["PATTERN"], about = "The pattern whose word to guess.")]
[INFO] [stdout] 13 | |     pub pattern: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adaptive_hangman` (bin "ah_player") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/ah_player/opts.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     #[clap(short = "d", long = "dict", default_value = "dict.txt", value_names = &["DICTFILE"], about = "Specifies the dictionary file to...
[INFO] [stdout] 7 | |     pub dict_path: String,
[INFO] [stdout]   | |_________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/ah_player/opts.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(required = true, value_names = &["PATTERN"], about = "The pattern whose word to guess.")]
[INFO] [stdout] 13 | |     pub pattern: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adaptive_hangman` (bin "ah_player" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/ah_game/opts.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     #[clap(short = "d", long = "dict", default_value = "dict.txt", value_names = &["DICTFILE"], about = "Specifies the dictionary file to...
[INFO] [stdout] 10 | |     pub dict_path: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/ah_game/opts.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(short = "p", long = "pattern", value_names = &["PATTERN"], about = "Specifies a specific pattern of words to choose.")]
[INFO] [stdout] 13 | |     pub pattern: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adaptive_hangman` (bin "ah_game") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/ah_game/opts.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     #[clap(short = "d", long = "dict", default_value = "dict.txt", value_names = &["DICTFILE"], about = "Specifies the dictionary file to...
[INFO] [stdout] 10 | |     pub dict_path: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/ah_game/opts.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(short = "p", long = "pattern", value_names = &["PATTERN"], about = "Specifies a specific pattern of words to choose.")]
[INFO] [stdout] 13 | |     pub pattern: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adaptive_hangman` (bin "ah_game" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9b29bc024620d147a09f905a8477c75d41562f56e5840edce1c59a3afe9a5b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b29bc024620d147a09f905a8477c75d41562f56e5840edce1c59a3afe9a5b57", kill_on_drop: false }`
[INFO] [stdout] 9b29bc024620d147a09f905a8477c75d41562f56e5840edce1c59a3afe9a5b57