[INFO] fetching crate dora-rerun 0.3.7-rc0...
[INFO] checking dora-rerun-0.3.7-rc0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dora-rerun 0.3.7-rc0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate dora-rerun 0.3.7-rc0
[INFO] finished tweaking crates.io crate dora-rerun 0.3.7-rc0
[INFO] tweaked toml for crates.io crate dora-rerun 0.3.7-rc0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dora-rerun 0.3.7-rc0 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 dora-rerun 0.3.7-rc0 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ddb75982503099bb3945b760d773054857b2ec05b3e1f004c1622b0d0056e74d
[INFO] running `Command { std: "docker" "start" "-a" "ddb75982503099bb3945b760d773054857b2ec05b3e1f004c1622b0d0056e74d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddb75982503099bb3945b760d773054857b2ec05b3e1f004c1622b0d0056e74d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddb75982503099bb3945b760d773054857b2ec05b3e1f004c1622b0d0056e74d", kill_on_drop: false }`
[INFO] [stdout] ddb75982503099bb3945b760d773054857b2ec05b3e1f004c1622b0d0056e74d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a87f6ecfc0ee392abcee9a5652f4a7caed531115e5fd0c8119c6a6e62cd602cf
[INFO] running `Command { std: "docker" "start" "-a" "a87f6ecfc0ee392abcee9a5652f4a7caed531115e5fd0c8119c6a6e62cd602cf", kill_on_drop: false }`
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[INFO] [stderr]     Checking arrow v52.2.0
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[INFO] [stderr]    Compiling rerun v0.18.2
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[INFO] [stderr]     Checking re_entity_db v0.18.2
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[INFO] [stderr]     Checking re_data_loader v0.18.2
[INFO] [stderr]     Checking dora-rerun v0.3.7-rc0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:31:29
[INFO] [stdout]    |
[INFO] [stdout] 31 |           Ok(memory_limit) => memory_limit
[INFO] [stdout]    |  _____________________________^
[INFO] [stdout] 32 | |             .parse::<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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 | /             readme
[INFO] [stdout] 49 | |                 .parse::<String>()
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<rerun::components::ImageBuffer, Infallible>
[INFO] [stdout]   --> src/main.rs:91:40
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     let image_buffer = ImageBuffer::try_from(buffer)
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<rerun::components::ImageBuffer, Infallible>
[INFO] [stdout]    --> src/main.rs:105:40
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     let image_buffer = ImageBuffer::try_from(buffer)
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dora-rerun` (bin "dora-rerun" test) due to 4 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:31:29
[INFO] [stdout]    |
[INFO] [stdout] 31 |           Ok(memory_limit) => memory_limit
[INFO] [stdout]    |  _____________________________^
[INFO] [stdout] 32 | |             .parse::<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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 | /             readme
[INFO] [stdout] 49 | |                 .parse::<String>()
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<rerun::components::ImageBuffer, Infallible>
[INFO] [stdout]   --> src/main.rs:91:40
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     let image_buffer = ImageBuffer::try_from(buffer)
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<rerun::components::ImageBuffer, Infallible>
[INFO] [stdout]    --> src/main.rs:105:40
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     let image_buffer = ImageBuffer::try_from(buffer)
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dora-rerun` (bin "dora-rerun") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "a87f6ecfc0ee392abcee9a5652f4a7caed531115e5fd0c8119c6a6e62cd602cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87f6ecfc0ee392abcee9a5652f4a7caed531115e5fd0c8119c6a6e62cd602cf", kill_on_drop: false }`
[INFO] [stdout] a87f6ecfc0ee392abcee9a5652f4a7caed531115e5fd0c8119c6a6e62cd602cf
