[INFO] fetching crate oasis-cbor 0.5.1...
[INFO] checking oasis-cbor-0.5.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate oasis-cbor 0.5.1 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate oasis-cbor 0.5.1
[INFO] finished tweaking crates.io crate oasis-cbor 0.5.1
[INFO] tweaked toml for crates.io crate oasis-cbor 0.5.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate oasis-cbor 0.5.1 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 29 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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_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] 1c2c2a0222d9a111cf377b86fee166e3b1965a5b06fe14f67cab1651922f6c5c
[INFO] running `Command { std: "docker" "start" "-a" "1c2c2a0222d9a111cf377b86fee166e3b1965a5b06fe14f67cab1651922f6c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c2c2a0222d9a111cf377b86fee166e3b1965a5b06fe14f67cab1651922f6c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2c2a0222d9a111cf377b86fee166e3b1965a5b06fe14f67cab1651922f6c5c", kill_on_drop: false }`
[INFO] [stdout] 1c2c2a0222d9a111cf377b86fee166e3b1965a5b06fe14f67cab1651922f6c5c
[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] 76e29b23d1bf75bacf5ace8271b827ab8532e68ba18b3875b6d1c199abaf30eb
[INFO] running `Command { std: "docker" "start" "-a" "76e29b23d1bf75bacf5ace8271b827ab8532e68ba18b3875b6d1c199abaf30eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling oasis-cbor-value v0.5.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.3
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]     Checking serde_bytes v0.11.19
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling oasis-cbor-derive v0.5.1
[INFO] [stderr]     Checking oasis-cbor v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/decode.rs:68:25
[INFO] [stdout]     |
[INFO] [stdout]  68 |                         v.try_into().map_err(|_| DecodeError::UnexpectedIntegerSize)
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 | impl_uint!(u64);
[INFO] [stdout]     | --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_uint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/decode.rs:68:25
[INFO] [stdout]     |
[INFO] [stdout]  68 |                         v.try_into().map_err(|_| DecodeError::UnexpectedIntegerSize)
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 | impl_uint!(u64);
[INFO] [stdout]     | --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_uint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oasis-cbor` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `oasis-cbor` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "76e29b23d1bf75bacf5ace8271b827ab8532e68ba18b3875b6d1c199abaf30eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e29b23d1bf75bacf5ace8271b827ab8532e68ba18b3875b6d1c199abaf30eb", kill_on_drop: false }`
[INFO] [stdout] 76e29b23d1bf75bacf5ace8271b827ab8532e68ba18b3875b6d1c199abaf30eb