[INFO] fetching crate hexspec-cli 0.2.0...
[INFO] checking hexspec-cli-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate hexspec-cli 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate hexspec-cli 0.2.0
[INFO] finished tweaking crates.io crate hexspec-cli 0.2.0
[INFO] tweaked toml for crates.io crate hexspec-cli 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hexspec-cli 0.2.0 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 hexspec-cli 0.2.0 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] 9c32fa6b1a4bea438ad424174dfff72b2ebbe40db9e5453b196a1b7a13705405
[INFO] running `Command { std: "docker" "start" "-a" "9c32fa6b1a4bea438ad424174dfff72b2ebbe40db9e5453b196a1b7a13705405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c32fa6b1a4bea438ad424174dfff72b2ebbe40db9e5453b196a1b7a13705405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c32fa6b1a4bea438ad424174dfff72b2ebbe40db9e5453b196a1b7a13705405", kill_on_drop: false }`
[INFO] [stdout] 9c32fa6b1a4bea438ad424174dfff72b2ebbe40db9e5453b196a1b7a13705405
[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] 7c0fcfe3c61afa22cf93a4892ad6cc74c72f41a43416e9870d650ff750e116e2
[INFO] running `Command { std: "docker" "start" "-a" "7c0fcfe3c61afa22cf93a4892ad6cc74c72f41a43416e9870d650ff750e116e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]    Compiling eyre v0.6.6
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nom_locate v4.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.0.14
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking hexspec v0.2.0
[INFO] [stderr]     Checking clap v3.0.14
[INFO] [stderr]     Checking hexspec-cli v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bytes/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     /// A hexspec file to read
[INFO] [stdout] 12 | |     path: PathBuf,
[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/bytes/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// Where to output bytes
[INFO] [stdout] 15 | |     out: Option<PathBuf>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/fmt/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Files to format (stdin if no files exist)
[INFO] [stdout] 17 | |     files: Vec<PathBuf>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/verify/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     /// A hexspec file
[INFO] [stdout] 12 | |     filename: PathBuf,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/verify/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// Byte input file
[INFO] [stdout] 15 | |     input: Option<PathBuf>,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bytes/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     /// A hexspec file to read
[INFO] [stdout] 12 | |     path: PathBuf,
[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/bytes/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// Where to output bytes
[INFO] [stdout] 15 | |     out: Option<PathBuf>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/fmt/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Files to format (stdin if no files exist)
[INFO] [stdout] 17 | |     files: Vec<PathBuf>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/verify/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     /// A hexspec file
[INFO] [stdout] 12 | |     filename: PathBuf,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/verify/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// Byte input file
[INFO] [stdout] 15 | |     input: Option<PathBuf>,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hexspec-cli` (bin "hexspec") due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hexspec-cli` (bin "hexspec" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "7c0fcfe3c61afa22cf93a4892ad6cc74c72f41a43416e9870d650ff750e116e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0fcfe3c61afa22cf93a4892ad6cc74c72f41a43416e9870d650ff750e116e2", kill_on_drop: false }`
[INFO] [stdout] 7c0fcfe3c61afa22cf93a4892ad6cc74c72f41a43416e9870d650ff750e116e2
