[INFO] cloning repository https://github.com/wglane/Rust-Find
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wglane/Rust-Find" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwglane%2FRust-Find", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwglane%2FRust-Find'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3debadd8d0cd244fed5ddc7a6d7fe27525220fc
[INFO] checking wglane/Rust-Find 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%2Fwglane%2FRust-Find" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wglane/Rust-Find
[INFO] finished tweaking git repo https://github.com/wglane/Rust-Find
[INFO] tweaked toml for git repo https://github.com/wglane/Rust-Find written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wglane/Rust-Find 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/wglane/Rust-Find 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 41119c088dbd067bd26c824a568b14d370b2ff3741263438034c4d6b6c790ec7
[INFO] running `Command { std: "docker" "start" "-a" "41119c088dbd067bd26c824a568b14d370b2ff3741263438034c4d6b6c790ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41119c088dbd067bd26c824a568b14d370b2ff3741263438034c4d6b6c790ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41119c088dbd067bd26c824a568b14d370b2ff3741263438034c4d6b6c790ec7", kill_on_drop: false }`
[INFO] [stdout] 41119c088dbd067bd26c824a568b14d370b2ff3741263438034c4d6b6c790ec7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f88ea550303fc496e06b5b1c51f72895d274e4a87841cb5e3280a42c3faa5299
[INFO] running `Command { std: "docker" "start" "-a" "f88ea550303fc496e06b5b1c51f72895d274e4a87841cb5e3280a42c3faa5299", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking rust-find v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `in_dir` is never read
[INFO] [stdout]   --> src/myfile.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct MyFile {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     pub name: String,
[INFO] [stdout] 12 |     in_dir: PathBuf,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     #[structopt(
[INFO] [stdout] 29 | |         short = "o",
[INFO] [stdout] 30 | |         long = "output",
[INFO] [stdout] 31 | |         help = "write (or append) results to file <output> intead of STDOUT"
[INFO] [stdout] 32 | |     )]
[INFO] [stdout] 33 | |     output: Option<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] warning: field `in_dir` is never read
[INFO] [stdout]   --> src/myfile.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct MyFile {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     pub name: String,
[INFO] [stdout] 12 |     in_dir: PathBuf,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-find` (bin "rust-find" test) due to 1 previous error; 1 warning emitted
[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/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     #[structopt(
[INFO] [stdout] 29 | |         short = "o",
[INFO] [stdout] 30 | |         long = "output",
[INFO] [stdout] 31 | |         help = "write (or append) results to file <output> intead of STDOUT"
[INFO] [stdout] 32 | |     )]
[INFO] [stdout] 33 | |     output: Option<String>,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-find` (bin "rust-find") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f88ea550303fc496e06b5b1c51f72895d274e4a87841cb5e3280a42c3faa5299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88ea550303fc496e06b5b1c51f72895d274e4a87841cb5e3280a42c3faa5299", kill_on_drop: false }`
[INFO] [stdout] f88ea550303fc496e06b5b1c51f72895d274e4a87841cb5e3280a42c3faa5299
