[INFO] cloning repository https://github.com/emk/word-puzzler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emk/word-puzzler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Fword-puzzler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Fword-puzzler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9a16dd018af950154836c2fb16fd3ba427ca9482 [INFO] checking emk/word-puzzler 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%2Femk%2Fword-puzzler" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/emk/word-puzzler [INFO] finished tweaking git repo https://github.com/emk/word-puzzler [INFO] tweaked toml for git repo https://github.com/emk/word-puzzler written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/emk/word-puzzler 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/emk/word-puzzler 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 335d05ac56478333512432f29397d1ea34d61abfb431d42f7feb04db926a7b19 [INFO] running `Command { std: "docker" "start" "-a" "335d05ac56478333512432f29397d1ea34d61abfb431d42f7feb04db926a7b19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "335d05ac56478333512432f29397d1ea34d61abfb431d42f7feb04db926a7b19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "335d05ac56478333512432f29397d1ea34d61abfb431d42f7feb04db926a7b19", kill_on_drop: false }` [INFO] [stdout] 335d05ac56478333512432f29397d1ea34d61abfb431d42f7feb04db926a7b19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 591e9e867a7256242efbc2c5f629f4d7d33c10ce4f3aee437b078de3b541408a [INFO] running `Command { std: "docker" "start" "-a" "591e9e867a7256242efbc2c5f629f4d7d33c10ce4f3aee437b078de3b541408a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.82 [INFO] [stderr] Compiling syn v1.0.58 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling log v0.4.13 [INFO] [stderr] Compiling fst v0.4.5 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Compiling anyhow v1.0.38 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking thread_local v1.1.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking byteorder v1.4.2 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking memmap2 v0.2.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking ordered-float v2.0.1 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking env_logger v0.8.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking letter-permutations v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | / /// A list of "\s*count\s+word" pairs, one per line. [INFO] [stdout] 38 | | in_words_path: PathBuf, [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 [INFO] [stdout] --> src/main.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | / /// The output dictionary. [INFO] [stdout] 40 | | out_dict_path: PathBuf, [INFO] [stdout] | |__________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | / /// The dictionary to search. [INFO] [stdout] 46 | | dict_path: PathBuf, [INFO] [stdout] | |______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | / /// A regex describing the word (automatically anchored on both ends). [INFO] [stdout] 48 | | regex: String, [INFO] [stdout] | |_________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | / /// The dictionary to search. [INFO] [stdout] 54 | | dict_path: PathBuf, [INFO] [stdout] | |______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | / /// Letters or fragments to permute. You can use "." as a placeholder for [INFO] [stdout] 56 | | /// unknown letters. [INFO] [stdout] 57 | | fragments: Vec, [INFO] [stdout] | |__________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `letter-permutations` (bin "letter-permutations" test) due to 6 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 [INFO] [stdout] --> src/main.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | / /// A list of "\s*count\s+word" pairs, one per line. [INFO] [stdout] 38 | | in_words_path: PathBuf, [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 [INFO] [stdout] --> src/main.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | / /// The output dictionary. [INFO] [stdout] 40 | | out_dict_path: PathBuf, [INFO] [stdout] | |__________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | / /// The dictionary to search. [INFO] [stdout] 46 | | dict_path: PathBuf, [INFO] [stdout] | |______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | / /// A regex describing the word (automatically anchored on both ends). [INFO] [stdout] 48 | | regex: String, [INFO] [stdout] | |_________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | / /// The dictionary to search. [INFO] [stdout] 54 | | dict_path: PathBuf, [INFO] [stdout] | |______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | / /// Letters or fragments to permute. You can use "." as a placeholder for [INFO] [stdout] 56 | | /// unknown letters. [INFO] [stdout] 57 | | fragments: Vec, [INFO] [stdout] | |__________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `letter-permutations` (bin "letter-permutations") due to 6 previous errors [INFO] running `Command { std: "docker" "inspect" "591e9e867a7256242efbc2c5f629f4d7d33c10ce4f3aee437b078de3b541408a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "591e9e867a7256242efbc2c5f629f4d7d33c10ce4f3aee437b078de3b541408a", kill_on_drop: false }` [INFO] [stdout] 591e9e867a7256242efbc2c5f629f4d7d33c10ce4f3aee437b078de3b541408a