[INFO] fetching crate dnpak 2.1.2...
[INFO] checking dnpak-2.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dnpak 2.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate dnpak 2.1.2
[INFO] finished tweaking crates.io crate dnpak 2.1.2
[INFO] tweaked toml for crates.io crate dnpak 2.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dnpak 2.1.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8cc85fa6bce4c2f01350881acf33d90977cebdd90a2ec6d587eebf579ff3da26
[INFO] running `Command { std: "docker" "start" "-a" "8cc85fa6bce4c2f01350881acf33d90977cebdd90a2ec6d587eebf579ff3da26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cc85fa6bce4c2f01350881acf33d90977cebdd90a2ec6d587eebf579ff3da26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc85fa6bce4c2f01350881acf33d90977cebdd90a2ec6d587eebf579ff3da26", kill_on_drop: false }`
[INFO] [stdout] 8cc85fa6bce4c2f01350881acf33d90977cebdd90a2ec6d587eebf579ff3da26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e10d5fed9f88bdbc559e33e8fed34c2578793e476287eb2f720a773c9afcd44b
[INFO] running `Command { std: "docker" "start" "-a" "e10d5fed9f88bdbc559e33e8fed34c2578793e476287eb2f720a773c9afcd44b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libz-sys v1.1.23
[INFO] [stderr]     Checking glob v0.3.3
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]     Checking dnpak v2.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]    --> src/etfile.rs:143:35
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let data_before: String = fs::read_to_string(FILE)?.parse()?;
[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/etfile.rs:143:35
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let data_before: String = fs::read_to_string(FILE)?.parse()?;
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]    --> src/etfile.rs:144:34
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let data_after: String = fs::read_to_string("./tests/temp/unpack/version.cfg")?.parse()?;
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/etfile.rs:144:34
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let data_after: String = fs::read_to_string("./tests/temp/unpack/version.cfg")?.parse()?;
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dnpak` (lib test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e10d5fed9f88bdbc559e33e8fed34c2578793e476287eb2f720a773c9afcd44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10d5fed9f88bdbc559e33e8fed34c2578793e476287eb2f720a773c9afcd44b", kill_on_drop: false }`
[INFO] [stdout] e10d5fed9f88bdbc559e33e8fed34c2578793e476287eb2f720a773c9afcd44b