[INFO] fetching crate iasinat-lib 0.1.0...
[INFO] checking iasinat-lib-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate iasinat-lib 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate iasinat-lib 0.1.0
[INFO] finished tweaking crates.io crate iasinat-lib 0.1.0
[INFO] tweaked toml for crates.io crate iasinat-lib 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iasinat-lib 0.1.0 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 iasinat-lib 0.1.0 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5f4155820841ff13954c350383795eeacbe5267fbe5c1ff5e5037d082830fa57
[INFO] running `Command { std: "docker" "start" "-a" "5f4155820841ff13954c350383795eeacbe5267fbe5c1ff5e5037d082830fa57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f4155820841ff13954c350383795eeacbe5267fbe5c1ff5e5037d082830fa57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4155820841ff13954c350383795eeacbe5267fbe5c1ff5e5037d082830fa57", kill_on_drop: false }`
[INFO] [stdout] 5f4155820841ff13954c350383795eeacbe5267fbe5c1ff5e5037d082830fa57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9fba5ad5b75a2eeb172177811b615ff559cecfa64133de66b15f50c61f855534
[INFO] running `Command { std: "docker" "start" "-a" "9fba5ad5b75a2eeb172177811b615ff559cecfa64133de66b15f50c61f855534", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking custom_error v1.9.2
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking tofas v0.2.11
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking iasinat-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/mphr.rs:65:22
[INFO] [stdout]    |
[INFO] [stdout] 65 |       let spacecraft_id = Self::read_kv_string_at(
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 66 | |         rd,rec,664,36,
[INFO] [stdout] 67 | |         "SPACECRAFT_ID")?.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: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/mphr.rs:65:22
[INFO] [stdout]    |
[INFO] [stdout] 65 |       let spacecraft_id = Self::read_kv_string_at(
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 66 | |         rd,rec,664,36,
[INFO] [stdout] 67 | |         "SPACECRAFT_ID")?.parse()?;
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iasinat-lib` (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<std::result::Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/mphr.rs:65:22
[INFO] [stdout]    |
[INFO] [stdout] 65 |       let spacecraft_id = Self::read_kv_string_at(
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 66 | |         rd,rec,664,36,
[INFO] [stdout] 67 | |         "SPACECRAFT_ID")?.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: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/mphr.rs:65:22
[INFO] [stdout]    |
[INFO] [stdout] 65 |       let spacecraft_id = Self::read_kv_string_at(
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 66 | |         rd,rec,664,36,
[INFO] [stdout] 67 | |         "SPACECRAFT_ID")?.parse()?;
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iasinat-lib` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9fba5ad5b75a2eeb172177811b615ff559cecfa64133de66b15f50c61f855534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fba5ad5b75a2eeb172177811b615ff559cecfa64133de66b15f50c61f855534", kill_on_drop: false }`
[INFO] [stdout] 9fba5ad5b75a2eeb172177811b615ff559cecfa64133de66b15f50c61f855534