[INFO] fetching crate rem-extract 0.1.3...
[INFO] checking rem-extract-0.1.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rem-extract 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rem-extract 0.1.3
[INFO] finished tweaking crates.io crate rem-extract 0.1.3
[INFO] tweaked toml for crates.io crate rem-extract 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rem-extract 0.1.3 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 rem-extract 0.1.3 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 }`
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[INFO] [stdout] 2e73a1848d2c9dfcce06c9386072c8ea4a0b8a2f790d43ff3dea1c5d242f2f78
[INFO] running `Command { std: "docker" "start" "-a" "2e73a1848d2c9dfcce06c9386072c8ea4a0b8a2f790d43ff3dea1c5d242f2f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e73a1848d2c9dfcce06c9386072c8ea4a0b8a2f790d43ff3dea1c5d242f2f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e73a1848d2c9dfcce06c9386072c8ea4a0b8a2f790d43ff3dea1c5d242f2f78", kill_on_drop: false }`
[INFO] [stdout] 2e73a1848d2c9dfcce06c9386072c8ea4a0b8a2f790d43ff3dea1c5d242f2f78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 62cc7fc77492be9056d9ce9977955e1419322d085ea3bafa21f94753d3857c76
[INFO] running `Command { std: "docker" "start" "-a" "62cc7fc77492be9056d9ce9977955e1419322d085ea3bafa21f94753d3857c76", kill_on_drop: false }`
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[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extract_tests.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new(input_file: &str, start_idx: u32, end_idx: u32) -> TestFile {
[INFO] [stdout]    |                            ^^^^ the lifetime is elided here       ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new(input_file: &str, start_idx: u32, end_idx: u32) -> TestFile<'_> {
[INFO] [stdout]    |                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<TextSize, Infallible>
[INFO] [stdout]    --> src/extraction_utils.rs:345:9
[INFO] [stdout]     |
[INFO] [stdout] 345 |         TextSize::try_from( range.0 ).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: std::result::Result<TextSize, Infallible>
[INFO] [stdout]    --> src/extraction_utils.rs:346:9
[INFO] [stdout]     |
[INFO] [stdout] 346 |         TextSize::try_from( range.1 ).unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rem-extract` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extract_tests.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new(input_file: &str, start_idx: u32, end_idx: u32) -> TestFile {
[INFO] [stdout]    |                            ^^^^ the lifetime is elided here       ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new(input_file: &str, start_idx: u32, end_idx: u32) -> TestFile<'_> {
[INFO] [stdout]    |                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<TextSize, Infallible>
[INFO] [stdout]    --> src/extraction_utils.rs:345:9
[INFO] [stdout]     |
[INFO] [stdout] 345 |         TextSize::try_from( range.0 ).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: std::result::Result<TextSize, Infallible>
[INFO] [stdout]    --> src/extraction_utils.rs:346:9
[INFO] [stdout]     |
[INFO] [stdout] 346 |         TextSize::try_from( range.1 ).unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rem-extract` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "62cc7fc77492be9056d9ce9977955e1419322d085ea3bafa21f94753d3857c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62cc7fc77492be9056d9ce9977955e1419322d085ea3bafa21f94753d3857c76", kill_on_drop: false }`
[INFO] [stdout] 62cc7fc77492be9056d9ce9977955e1419322d085ea3bafa21f94753d3857c76