[INFO] cloning repository https://github.com/asynched/rusty-grep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asynched/rusty-grep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasynched%2Frusty-grep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasynched%2Frusty-grep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e80e5aa02bd6cbab9add4a23063a8ed580d59a68
[INFO] checking asynched/rusty-grep 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%2Fasynched%2Frusty-grep" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/asynched/rusty-grep
[INFO] finished tweaking git repo https://github.com/asynched/rusty-grep
[INFO] tweaked toml for git repo https://github.com/asynched/rusty-grep written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/asynched/rusty-grep 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/asynched/rusty-grep 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 39f6526939a7716841f459096fc5c2964c7fb93f9b2190d2ce873ce0ed978c09
[INFO] running `Command { std: "docker" "start" "-a" "39f6526939a7716841f459096fc5c2964c7fb93f9b2190d2ce873ce0ed978c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39f6526939a7716841f459096fc5c2964c7fb93f9b2190d2ce873ce0ed978c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39f6526939a7716841f459096fc5c2964c7fb93f9b2190d2ce873ce0ed978c09", kill_on_drop: false }`
[INFO] [stdout] 39f6526939a7716841f459096fc5c2964c7fb93f9b2190d2ce873ce0ed978c09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5db489fe4aa40663a85b10f813ab0dff6d7765ee7bf01cc1c23ba707d780bef8
[INFO] running `Command { std: "docker" "start" "-a" "5db489fe4aa40663a85b10f813ab0dff6d7765ee7bf01cc1c23ba707d780bef8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.6
[INFO] [stderr]     Checking clap v3.0.10
[INFO] [stderr]     Checking rusty-grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/grep/core.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// Filename to search within the file system
[INFO] [stdout] 11 | |     #[clap(short, long, default_value = "")]
[INFO] [stdout] 12 | |     filename: 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/grep/core.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// Regex to search within the file
[INFO] [stdout] 15 | |     #[clap(short, long)]
[INFO] [stdout] 16 | |     pattern: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-grep` (bin "rusty-grep" test) 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/grep/core.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// Filename to search within the file system
[INFO] [stdout] 11 | |     #[clap(short, long, default_value = "")]
[INFO] [stdout] 12 | |     filename: 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/grep/core.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// Regex to search within the file
[INFO] [stdout] 15 | |     #[clap(short, long)]
[INFO] [stdout] 16 | |     pattern: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-grep` (bin "rusty-grep") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5db489fe4aa40663a85b10f813ab0dff6d7765ee7bf01cc1c23ba707d780bef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db489fe4aa40663a85b10f813ab0dff6d7765ee7bf01cc1c23ba707d780bef8", kill_on_drop: false }`
[INFO] [stdout] 5db489fe4aa40663a85b10f813ab0dff6d7765ee7bf01cc1c23ba707d780bef8
