[INFO] fetching crate bexpand 1.3.1-alpha.1...
[INFO] checking bexpand-1.3.1-alpha.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate bexpand 1.3.1-alpha.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate bexpand 1.3.1-alpha.1
[INFO] finished tweaking crates.io crate bexpand 1.3.1-alpha.1
[INFO] tweaked toml for crates.io crate bexpand 1.3.1-alpha.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bexpand 1.3.1-alpha.1 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 bexpand 1.3.1-alpha.1 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d63f45a96f05d06c860b618df339eec6fde7628e0d9a502e910a071566a7116e
[INFO] running `Command { std: "docker" "start" "-a" "d63f45a96f05d06c860b618df339eec6fde7628e0d9a502e910a071566a7116e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d63f45a96f05d06c860b618df339eec6fde7628e0d9a502e910a071566a7116e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d63f45a96f05d06c860b618df339eec6fde7628e0d9a502e910a071566a7116e", kill_on_drop: false }`
[INFO] [stdout] d63f45a96f05d06c860b618df339eec6fde7628e0d9a502e910a071566a7116e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 80e7b9cad7ab169f0711025d3f5b748f656fe541667143c41247791b23d41ab3
[INFO] running `Command { std: "docker" "start" "-a" "80e7b9cad7ab169f0711025d3f5b748f656fe541667143c41247791b23d41ab3", kill_on_drop: false }`
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]     Checking nom-language v0.1.0
[INFO] [stderr]     Checking bexpand v1.3.1-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]   --> src/lib.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         number = number.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<i64, Infallible>
[INFO] [stdout]   --> src/lib.rs:92:32
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     None => Ok(number.unwrap().to_string()),
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:244:41
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let values: Result<Vec<_>, _> = sequence.into_iter().collect();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:245:21
[INFO] [stdout]     |
[INFO] [stdout] 245 |         assert_eq!(&values.unwrap(), &[1i64, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:254:41
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let values: Result<Vec<_>, _> = sequence.into_iter().collect();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:255:21
[INFO] [stdout]     |
[INFO] [stdout] 255 |         assert_eq!(&values.unwrap(), &[1i64, 3, 5, 7, 9]);
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:265:41
[INFO] [stdout]     |
[INFO] [stdout] 265 |         let values: Result<Vec<_>, _> = sequence.into_iter().collect();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:266:21
[INFO] [stdout]     |
[INFO] [stdout] 266 |         assert_eq!(&values.unwrap(), &[10i64, 9, 8, 7, 6, 5, 4, 3, 2, 1]);
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:276:41
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let values: Result<Vec<_>, _> = sequence.into_iter().collect();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<i64>, Infallible>
[INFO] [stdout]    --> src/sequence.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |         assert_eq!(&values.unwrap(), &[10i64, 8, 6, 4, 2]);
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bexpand` (lib test) due to 10 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]   --> src/lib.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         number = number.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<i64, Infallible>
[INFO] [stdout]   --> src/lib.rs:92:32
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     None => Ok(number.unwrap().to_string()),
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bexpand` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "80e7b9cad7ab169f0711025d3f5b748f656fe541667143c41247791b23d41ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e7b9cad7ab169f0711025d3f5b748f656fe541667143c41247791b23d41ab3", kill_on_drop: false }`
[INFO] [stdout] 80e7b9cad7ab169f0711025d3f5b748f656fe541667143c41247791b23d41ab3