[INFO] fetching crate ctap-types 0.4.0...
[INFO] checking ctap-types-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ctap-types 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ctap-types 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ctap-types 0.4.0
[INFO] tweaked toml for crates.io crate ctap-types 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ctap-types 0.4.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.10.0)
[INFO] [stderr]       Adding cosey v0.3.2 (available: v0.4.0)
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.9.2)
[INFO] [stderr]       Adding heapless-bytes v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding hex-literal v0.4.1 (available: v1.1.0)
[INFO] [stderr]       Adding iso7816 v0.1.4 (available: v0.2.0)
[INFO] [stderr]       Adding serde-indexed v0.1.1 (available: v0.2.0)
[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] dbf8e20452f974ce8fa696646c11059d97b805703054400181a1a26301b9eb4e
[INFO] running `Command { std: "docker" "start" "-a" "dbf8e20452f974ce8fa696646c11059d97b805703054400181a1a26301b9eb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbf8e20452f974ce8fa696646c11059d97b805703054400181a1a26301b9eb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf8e20452f974ce8fa696646c11059d97b805703054400181a1a26301b9eb4e", kill_on_drop: false }`
[INFO] [stdout] dbf8e20452f974ce8fa696646c11059d97b805703054400181a1a26301b9eb4e
[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] 88f11d211145e63068818a529bdea2154574a0d16925bc0ea046903d2e0387f4
[INFO] running `Command { std: "docker" "start" "-a" "88f11d211145e63068818a529bdea2154574a0d16925bc0ea046903d2e0387f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling delog v0.1.8
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]     Checking serde_bytes v0.11.19
[INFO] [stderr]    Compiling serde-indexed v0.1.1
[INFO] [stderr]     Checking hex-literal v0.4.1
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_test v1.0.177
[INFO] [stderr]     Checking heapless-bytes v0.3.0
[INFO] [stderr]     Checking iso7816 v0.1.4
[INFO] [stderr]     Checking cosey v0.3.2
[INFO] [stderr]     Checking cbor-smol v0.5.1
[INFO] [stderr]     Checking ctap-types v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: core::result::Result<heapless::String<L>, Infallible>
[INFO] [stdout]   --> src/webauthn.rs:78:11
[INFO] [stdout]    |
[INFO] [stdout] 78 |     match String::try_from(s) {
[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 `ctap-types` (lib) 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<heapless::String<L>, Infallible>
[INFO] [stdout]   --> src/webauthn.rs:78:11
[INFO] [stdout]    |
[INFO] [stdout] 78 |     match String::try_from(s) {
[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 `ctap-types` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "88f11d211145e63068818a529bdea2154574a0d16925bc0ea046903d2e0387f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f11d211145e63068818a529bdea2154574a0d16925bc0ea046903d2e0387f4", kill_on_drop: false }`
[INFO] [stdout] 88f11d211145e63068818a529bdea2154574a0d16925bc0ea046903d2e0387f4