[INFO] fetching crate styleth 0.1.4...
[INFO] checking styleth-0.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate styleth 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate styleth 0.1.4
[INFO] finished tweaking crates.io crate styleth 0.1.4
[INFO] tweaked toml for crates.io crate styleth 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate styleth 0.1.4 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 styleth 0.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c8fda1fa966d66dc992136cf6f8e4a848cf5be996ee9bbb1af222f4d7134d4a5
[INFO] running `Command { std: "docker" "start" "-a" "c8fda1fa966d66dc992136cf6f8e4a848cf5be996ee9bbb1af222f4d7134d4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8fda1fa966d66dc992136cf6f8e4a848cf5be996ee9bbb1af222f4d7134d4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8fda1fa966d66dc992136cf6f8e4a848cf5be996ee9bbb1af222f4d7134d4a5", kill_on_drop: false }`
[INFO] [stdout] c8fda1fa966d66dc992136cf6f8e4a848cf5be996ee9bbb1af222f4d7134d4a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] da3269cf59dc5901494da7f3908610fc61a2d66612aa227073bb3d697c32e292
[INFO] running `Command { std: "docker" "start" "-a" "da3269cf59dc5901494da7f3908610fc61a2d66612aa227073bb3d697c32e292", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling libsecp256k1-core v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.2.1
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.2.1
[INFO] [stderr]     Checking hmac-drbg v0.3.0
[INFO] [stderr]     Checking keccak v0.1.2
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]    Compiling libsecp256k1 v0.5.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking atomic-counter v1.0.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking styleth v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     /// Matches on addresses that starts with given chars.
[INFO] [stdout] 36 | |     /// Example: ./styleth --starts-with dead69
[INFO] [stdout] 37 | |     #[structopt(verbatim_doc_comment, name = "hex text", short = "s", long = "starts-with")]
[INFO] [stdout] 38 | |     pub starts_with: 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] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     /// Matches on specific hex chars without any particular order.
[INFO] [stdout] 51 | |     /// Example: ./styleth --specific-chars abc123
[INFO] [stdout] 52 | |     #[structopt(verbatim_doc_comment, short = "c", long = "specific-chars")]
[INFO] [stdout] 53 | |     pub specific_chars: Option<String>,
[INFO] [stdout]    | |______________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     /// Matches on a given regex pattern.
[INFO] [stdout] 56 | |     /// Example: ./styleth --regex "^dead.*0dead$"
[INFO] [stdout] 57 | |     #[structopt(verbatim_doc_comment, short = "r", long = "regex")]
[INFO] [stdout] 58 | |     pub regex: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `styleth` (bin "styleth") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     /// Matches on addresses that starts with given chars.
[INFO] [stdout] 36 | |     /// Example: ./styleth --starts-with dead69
[INFO] [stdout] 37 | |     #[structopt(verbatim_doc_comment, name = "hex text", short = "s", long = "starts-with")]
[INFO] [stdout] 38 | |     pub starts_with: 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] 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/cli.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     /// Matches on specific hex chars without any particular order.
[INFO] [stdout] 51 | |     /// Example: ./styleth --specific-chars abc123
[INFO] [stdout] 52 | |     #[structopt(verbatim_doc_comment, short = "c", long = "specific-chars")]
[INFO] [stdout] 53 | |     pub specific_chars: Option<String>,
[INFO] [stdout]    | |______________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `styleth` (bin "styleth" test) due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     /// Matches on a given regex pattern.
[INFO] [stdout] 56 | |     /// Example: ./styleth --regex "^dead.*0dead$"
[INFO] [stdout] 57 | |     #[structopt(verbatim_doc_comment, short = "r", long = "regex")]
[INFO] [stdout] 58 | |     pub regex: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "da3269cf59dc5901494da7f3908610fc61a2d66612aa227073bb3d697c32e292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da3269cf59dc5901494da7f3908610fc61a2d66612aa227073bb3d697c32e292", kill_on_drop: false }`
[INFO] [stdout] da3269cf59dc5901494da7f3908610fc61a2d66612aa227073bb3d697c32e292