[INFO] fetching crate crabfish 0.1.2...
[INFO] checking crabfish-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate crabfish 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate crabfish 0.1.2
[INFO] finished tweaking crates.io crate crabfish 0.1.2
[INFO] tweaked toml for crates.io crate crabfish 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate crabfish 0.1.2 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] crate crates.io crate crabfish 0.1.2 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] bf2c48d38b1ed78e25b84bd38a8218e4085bc4663abfd97e69061705c761d38b
[INFO] running `Command { std: "docker" "start" "-a" "bf2c48d38b1ed78e25b84bd38a8218e4085bc4663abfd97e69061705c761d38b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf2c48d38b1ed78e25b84bd38a8218e4085bc4663abfd97e69061705c761d38b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2c48d38b1ed78e25b84bd38a8218e4085bc4663abfd97e69061705c761d38b", kill_on_drop: false }`
[INFO] [stdout] bf2c48d38b1ed78e25b84bd38a8218e4085bc4663abfd97e69061705c761d38b
[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] 5581b9a29c269ac0d004a88f0967f70901ef6180352dd8e8a098ce0114f2db77
[INFO] running `Command { std: "docker" "start" "-a" "5581b9a29c269ac0d004a88f0967f70901ef6180352dd8e8a098ce0114f2db77", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.57
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling chess v3.2.0
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking crabfish v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/flags.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     #[clap(
[INFO] [stdout] 24 | |         short,
[INFO] [stdout] 25 | |         long,
[INFO] [stdout] 26 | |         about = "An FEN string. Will read from stdin if not provided",
[INFO] [stdout] 27 | |         conflicts_with = "interactive"
[INFO] [stdout] 28 | |     )]
[INFO] [stdout] 29 | |     pub fen: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crabfish` (bin "crabfish" test) due to 1 previous error
[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/flags.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     #[clap(
[INFO] [stdout] 24 | |         short,
[INFO] [stdout] 25 | |         long,
[INFO] [stdout] 26 | |         about = "An FEN string. Will read from stdin if not provided",
[INFO] [stdout] 27 | |         conflicts_with = "interactive"
[INFO] [stdout] 28 | |     )]
[INFO] [stdout] 29 | |     pub fen: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crabfish` (bin "crabfish") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5581b9a29c269ac0d004a88f0967f70901ef6180352dd8e8a098ce0114f2db77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5581b9a29c269ac0d004a88f0967f70901ef6180352dd8e8a098ce0114f2db77", kill_on_drop: false }`
[INFO] [stdout] 5581b9a29c269ac0d004a88f0967f70901ef6180352dd8e8a098ce0114f2db77
