[INFO] fetching crate coap-message 0.3.6...
[INFO] checking coap-message-0.3.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate coap-message 0.3.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate coap-message 0.3.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate coap-message 0.3.6
[INFO] tweaked toml for crates.io crate coap-message 0.3.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate coap-message 0.3.6 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 coap-message 0.3.6 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c41d8bbeb6db90b876cf2e8a92120b793eff134d84ce192c49a63ba1945b1685
[INFO] running `Command { std: "docker" "start" "-a" "c41d8bbeb6db90b876cf2e8a92120b793eff134d84ce192c49a63ba1945b1685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c41d8bbeb6db90b876cf2e8a92120b793eff134d84ce192c49a63ba1945b1685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c41d8bbeb6db90b876cf2e8a92120b793eff134d84ce192c49a63ba1945b1685", kill_on_drop: false }`
[INFO] [stdout] c41d8bbeb6db90b876cf2e8a92120b793eff134d84ce192c49a63ba1945b1685
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 28e48e27e81a9d33f3912b26720b80faae6699b7fdf30683c20323a11cabaef4
[INFO] running `Command { std: "docker" "start" "-a" "28e48e27e81a9d33f3912b26720b80faae6699b7fdf30683c20323a11cabaef4", kill_on_drop: false }`
[INFO] [stderr]     Checking coap-message v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/numbers.rs:37:65
[INFO] [stdout]    |
[INFO] [stdout] 37 |       fn new(code: u8) -> Result<Self, core::convert::Infallible> {
[INFO] [stdout]    |  _________________________________________________________________^
[INFO] [stdout] 38 | |         Ok(code)
[INFO] [stdout] 39 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `coap-message` (lib) due to 4 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/numbers.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Ok(code)
[INFO] [stdout]    |         ^^^^^^^^
[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<u16, Infallible>
[INFO] [stdout]   --> src/numbers.rs:74:68
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn new(option: u16) -> Result<Self, core::convert::Infallible> {
[INFO] [stdout]    |  ____________________________________________________________________^
[INFO] [stdout] 75 | |         Ok(option)
[INFO] [stdout] 76 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `coap-message` (lib test) due to 4 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]   --> src/numbers.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Ok(option)
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/numbers.rs:37:65
[INFO] [stdout]    |
[INFO] [stdout] 37 |       fn new(code: u8) -> Result<Self, core::convert::Infallible> {
[INFO] [stdout]    |  _________________________________________________________________^
[INFO] [stdout] 38 | |         Ok(code)
[INFO] [stdout] 39 | |     }
[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<u8, Infallible>
[INFO] [stdout]   --> src/numbers.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Ok(code)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]   --> src/numbers.rs:74:68
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn new(option: u16) -> Result<Self, core::convert::Infallible> {
[INFO] [stdout]    |  ____________________________________________________________________^
[INFO] [stdout] 75 | |         Ok(option)
[INFO] [stdout] 76 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]   --> src/numbers.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Ok(option)
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "28e48e27e81a9d33f3912b26720b80faae6699b7fdf30683c20323a11cabaef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e48e27e81a9d33f3912b26720b80faae6699b7fdf30683c20323a11cabaef4", kill_on_drop: false }`
[INFO] [stdout] 28e48e27e81a9d33f3912b26720b80faae6699b7fdf30683c20323a11cabaef4
