[INFO] cloning repository https://github.com/bas-vk/towns-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bas-vk/towns-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbas-vk%2Ftowns-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbas-vk%2Ftowns-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 530d93018d0288347b7dbb7e5f7be5a2252af0aa
[INFO] checking bas-vk/towns-rs 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%2Fbas-vk%2Ftowns-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bas-vk/towns-rs
[INFO] finished tweaking git repo https://github.com/bas-vk/towns-rs
[INFO] tweaked toml for git repo https://github.com/bas-vk/towns-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bas-vk/towns-rs 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/bas-vk/towns-rs 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] 631db018a8579c4f6ba1d0742bf921ef49636269d27aac7c31762d89792413c9
[INFO] running `Command { std: "docker" "start" "-a" "631db018a8579c4f6ba1d0742bf921ef49636269d27aac7c31762d89792413c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "631db018a8579c4f6ba1d0742bf921ef49636269d27aac7c31762d89792413c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "631db018a8579c4f6ba1d0742bf921ef49636269d27aac7c31762d89792413c9", kill_on_drop: false }`
[INFO] [stdout] 631db018a8579c4f6ba1d0742bf921ef49636269d27aac7c31762d89792413c9
[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] abdf10900fff2c733dd32a31877add8f508babcc13dd1550b08b779b27409090
[INFO] running `Command { std: "docker" "start" "-a" "abdf10900fff2c733dd32a31877add8f508babcc13dd1550b08b779b27409090", kill_on_drop: false }`
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[INFO] [stderr]     Checking towns-protocol-types v0.0.0-alpha.0 (/opt/rustwide/workdir/crates/types)
[INFO] [stderr]     Checking towns-protocol-contracts v0.0.0-alpha.0 (/opt/rustwide/workdir/crates/contracts)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> crates/types/src/stream_id.rs:254:13
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let e =
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> crates/types/src/stream_id.rs:256:64
[INFO] [stdout]     |
[INFO] [stdout] 256 |         if !matches!(TownsError::InvalidArgument("stream_id"), e) {
[INFO] [stdout]     |                                                                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> crates/types/src/stream_id.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let e =
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> crates/types/src/stream_id.rs:265:64
[INFO] [stdout]     |
[INFO] [stdout] 265 |         if !matches!(TownsError::InvalidArgument("stream_id"), e) {
[INFO] [stdout]     |                                                                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking towns-protocol-gandalf v0.0.0-alpha.0 (/opt/rustwide/workdir/crates/gandalf)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<StreamId, Infallible>
[INFO] [stdout]    --> crates/gandalf/src/stream.rs:482:57
[INFO] [stdout]     |
[INFO] [stdout] 482 |                         let stream_id: StreamId = match StreamId::try_from(&mb.streamId)   {
[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 `towns-protocol-gandalf` (bin "towns-protocol-gandalf" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<StreamId, Infallible>
[INFO] [stdout]    --> crates/gandalf/src/stream.rs:482:57
[INFO] [stdout]     |
[INFO] [stdout] 482 |                         let stream_id: StreamId = match StreamId::try_from(&mb.streamId)   {
[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 `towns-protocol-gandalf` (bin "towns-protocol-gandalf") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "abdf10900fff2c733dd32a31877add8f508babcc13dd1550b08b779b27409090", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abdf10900fff2c733dd32a31877add8f508babcc13dd1550b08b779b27409090", kill_on_drop: false }`
[INFO] [stdout] abdf10900fff2c733dd32a31877add8f508babcc13dd1550b08b779b27409090