[INFO] fetching crate dml-tools 0.2.1...
[INFO] checking dml-tools-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dml-tools 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate dml-tools 0.2.1
[INFO] finished tweaking crates.io crate dml-tools 0.2.1
[INFO] tweaked toml for crates.io crate dml-tools 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dml-tools 0.2.1 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 crates.io crate dml-tools 0.2.1 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] 093af24963fb54d1c27fce6c295791bdcea3033673244dd5ed170837bd46bf6d
[INFO] running `Command { std: "docker" "start" "-a" "093af24963fb54d1c27fce6c295791bdcea3033673244dd5ed170837bd46bf6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "093af24963fb54d1c27fce6c295791bdcea3033673244dd5ed170837bd46bf6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "093af24963fb54d1c27fce6c295791bdcea3033673244dd5ed170837bd46bf6d", kill_on_drop: false }`
[INFO] [stdout] 093af24963fb54d1c27fce6c295791bdcea3033673244dd5ed170837bd46bf6d
[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] 9d73858ea126a6418dd0c07a9f651947cc62b624f5b3881921dd402e4c96e25c
[INFO] running `Command { std: "docker" "start" "-a" "9d73858ea126a6418dd0c07a9f651947cc62b624f5b3881921dd402e4c96e25c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking unsafe-libyaml v0.2.10
[INFO] [stderr]     Checking inventory v0.3.15
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling typetag-impl v0.2.16
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking erased-serde v0.4.4
[INFO] [stderr]     Checking serde_yaml v0.9.32
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking typetag v0.2.16
[INFO] [stderr]     Checking yaml-merge-keys v0.6.0
[INFO] [stderr]     Checking dml-tools v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]   --> src/util.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sfile:String = fs::read_to_string(path)?.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<std::string::String, Infallible>
[INFO] [stdout]   --> src/util.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sfile:String = fs::read_to_string(path)?.parse()?;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dml-tools` (lib 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: ControlFlow<Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]   --> src/util.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sfile:String = fs::read_to_string(path)?.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<std::string::String, Infallible>
[INFO] [stdout]   --> src/util.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sfile:String = fs::read_to_string(path)?.parse()?;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dml-tools` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9d73858ea126a6418dd0c07a9f651947cc62b624f5b3881921dd402e4c96e25c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d73858ea126a6418dd0c07a9f651947cc62b624f5b3881921dd402e4c96e25c", kill_on_drop: false }`
[INFO] [stdout] 9d73858ea126a6418dd0c07a9f651947cc62b624f5b3881921dd402e4c96e25c
