[INFO] cloning repository https://github.com/Narsil/euleur-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Narsil/euleur-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNarsil%2Feuleur-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNarsil%2Feuleur-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b17845906d1074ccb473aacc8fa715cc8ceb110d
[INFO] checking Narsil/euleur-rust against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNarsil%2Feuleur-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Narsil/euleur-rust
[INFO] finished tweaking git repo https://github.com/Narsil/euleur-rust
[INFO] tweaked toml for git repo https://github.com/Narsil/euleur-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Narsil/euleur-rust 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 git repo https://github.com/Narsil/euleur-rust 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-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] 10cedf207a07369962f94caaf26355ba2e85efe5269c0b83b754dbdf1fe04f15
[INFO] running `Command { std: "docker" "start" "-a" "10cedf207a07369962f94caaf26355ba2e85efe5269c0b83b754dbdf1fe04f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10cedf207a07369962f94caaf26355ba2e85efe5269c0b83b754dbdf1fe04f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10cedf207a07369962f94caaf26355ba2e85efe5269c0b83b754dbdf1fe04f15", kill_on_drop: false }`
[INFO] [stdout] 10cedf207a07369962f94caaf26355ba2e85efe5269c0b83b754dbdf1fe04f15
[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] 678920e0de38a283bfa640f3e9e34b35e2ccd096a1da9d78c5e00d8e1c95e94f
[INFO] running `Command { std: "docker" "start" "-a" "678920e0de38a283bfa640f3e9e34b35e2ccd096a1da9d78c5e00d8e1c95e94f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking euler-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/forty_fifty.rs:45:66
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let pan_number = from_digits(&permutation.iter().map(|i| (8 - i)).collect::<Vec<_>>()[..]);
[INFO] [stdout]    |                                                                  ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 -         let pan_number = from_digits(&permutation.iter().map(|i| (8 - i)).collect::<Vec<_>>()[..]);
[INFO] [stdout] 45 +         let pan_number = from_digits(&permutation.iter().map(|i| 8 - i ).collect::<Vec<_>>()[..]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/thirty_forty.rs:248:49
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let digits = permutation.iter().map(|i| (10 - i)).collect::<Vec<_>>();
[INFO] [stdout]     |                                                 ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 248 -         let digits = permutation.iter().map(|i| (10 - i)).collect::<Vec<_>>();
[INFO] [stdout] 248 +         let digits = permutation.iter().map(|i| 10 - i ).collect::<Vec<_>>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/forty_fifty.rs:45:66
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let pan_number = from_digits(&permutation.iter().map(|i| (8 - i)).collect::<Vec<_>>()[..]);
[INFO] [stdout]    |                                                                  ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 -         let pan_number = from_digits(&permutation.iter().map(|i| (8 - i)).collect::<Vec<_>>()[..]);
[INFO] [stdout] 45 +         let pan_number = from_digits(&permutation.iter().map(|i| 8 - i ).collect::<Vec<_>>()[..]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/thirty_forty.rs:248:49
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let digits = permutation.iter().map(|i| (10 - i)).collect::<Vec<_>>();
[INFO] [stdout]     |                                                 ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 248 -         let digits = permutation.iter().map(|i| (10 - i)).collect::<Vec<_>>();
[INFO] [stdout] 248 +         let digits = permutation.iter().map(|i| 10 - i ).collect::<Vec<_>>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/fifty_sixty.rs:73:26
[INFO] [stdout]    |
[INFO] [stdout] 73 |         if self.take_n > n_digits.try_into().unwrap() {
[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<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:74:24
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:88:24
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/sixty_seventy.rs:102:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/sixty_seventy.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/thirty_forty.rs:220:27
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let digs = digits((*p).try_into().unwrap()).in_order();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/twenty_thirty.rs:257:30
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 let d: u64 = c.to_digit(10).unwrap().try_into().unwrap();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `euler-rust` (bin "euler-rust") due to 9 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/fifty_sixty.rs:73:26
[INFO] [stdout]    |
[INFO] [stdout] 73 |         if self.take_n > n_digits.try_into().unwrap() {
[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<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:74:24
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/sixty_seventy.rs:88:24
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/sixty_seventy.rs:102:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/sixty_seventy.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 .entry((t / 100).try_into().unwrap())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/thirty_forty.rs:220:27
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let digs = digits((*p).try_into().unwrap()).in_order();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/twenty_thirty.rs:257:30
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 let d: u64 = c.to_digit(10).unwrap().try_into().unwrap();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `euler-rust` (bin "euler-rust" test) due to 9 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "678920e0de38a283bfa640f3e9e34b35e2ccd096a1da9d78c5e00d8e1c95e94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "678920e0de38a283bfa640f3e9e34b35e2ccd096a1da9d78c5e00d8e1c95e94f", kill_on_drop: false }`
[INFO] [stdout] 678920e0de38a283bfa640f3e9e34b35e2ccd096a1da9d78c5e00d8e1c95e94f
