[INFO] cloning repository https://github.com/filiparag/ftn-mrkrm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/filiparag/ftn-mrkrm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffiliparag%2Fftn-mrkrm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffiliparag%2Fftn-mrkrm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cec33afdb620287c4feb0ffcf889835f90d7a6f3
[INFO] checking filiparag/ftn-mrkrm 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%2Ffiliparag%2Fftn-mrkrm" "/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/filiparag/ftn-mrkrm
[INFO] finished tweaking git repo https://github.com/filiparag/ftn-mrkrm
[INFO] tweaked toml for git repo https://github.com/filiparag/ftn-mrkrm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/filiparag/ftn-mrkrm 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/filiparag/ftn-mrkrm 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-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] 54f93fb053f6640486c9f09c38041306a6009ccd76ca56116b5687ae835b2e39
[INFO] running `Command { std: "docker" "start" "-a" "54f93fb053f6640486c9f09c38041306a6009ccd76ca56116b5687ae835b2e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54f93fb053f6640486c9f09c38041306a6009ccd76ca56116b5687ae835b2e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f93fb053f6640486c9f09c38041306a6009ccd76ca56116b5687ae835b2e39", kill_on_drop: false }`
[INFO] [stdout] 54f93fb053f6640486c9f09c38041306a6009ccd76ca56116b5687ae835b2e39
[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] 35fa138484fdb4f76ff7a03d637e9764424f8bfb09b472ca9bffaa9f53406a2b
[INFO] running `Command { std: "docker" "start" "-a" "35fa138484fdb4f76ff7a03d637e9764424f8bfb09b472ca9bffaa9f53406a2b", kill_on_drop: false }`
[INFO] [stderr]     Checking playfair-rs v0.1.0 (https://github.com/orhun/playfair-rs.git#09a79d39)
[INFO] [stderr]     Checking mrkrm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, PathBuf>
[INFO] [stdout]    --> src/client/conenction.rs:207:29
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let filepath: PathBuf = PathBuf::from_str(filename.as_ref())?;
[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<PathBuf, Infallible>
[INFO] [stdout]    --> src/client/conenction.rs:207:29
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let filepath: PathBuf = PathBuf::from_str(filename.as_ref())?;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mrkrm` (bin "client") 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<PathBuf, Infallible>
[INFO] [stdout]   --> src/server/main.rs:32:28
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .map(|ref val| PathBuf::from_str(val).ok())
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/server/config.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |             directory: std::path::PathBuf::from_str("./.").expect("relative current directory"),
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/server/main.rs:32:28
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .map(|ref val| PathBuf::from_str(val).ok())
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/server/config.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |             directory: std::path::PathBuf::from_str("./.").expect("relative current directory"),
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mrkrm` (bin "server") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, PathBuf>
[INFO] [stdout]    --> src/client/conenction.rs:207:29
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let filepath: PathBuf = PathBuf::from_str(filename.as_ref())?;
[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<PathBuf, Infallible>
[INFO] [stdout]    --> src/client/conenction.rs:207:29
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let filepath: PathBuf = PathBuf::from_str(filename.as_ref())?;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mrkrm` (bin "client" test) due to 2 previous errors
[INFO] [stderr] error: could not compile `mrkrm` (bin "server" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "35fa138484fdb4f76ff7a03d637e9764424f8bfb09b472ca9bffaa9f53406a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35fa138484fdb4f76ff7a03d637e9764424f8bfb09b472ca9bffaa9f53406a2b", kill_on_drop: false }`
[INFO] [stdout] 35fa138484fdb4f76ff7a03d637e9764424f8bfb09b472ca9bffaa9f53406a2b
