[INFO] fetching crate i2cbus 0.1.2...
[INFO] testing i2cbus-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate i2cbus 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate i2cbus 0.1.2
[INFO] finished tweaking crates.io crate i2cbus 0.1.2
[INFO] tweaked toml for crates.io crate i2cbus 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate i2cbus 0.1.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate i2cbus 0.1.2 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f654d04c3ec2aa316592a88c64050beff46df745e2b86a932145ad20ec430717
[INFO] running `Command { std: "docker" "start" "-a" "f654d04c3ec2aa316592a88c64050beff46df745e2b86a932145ad20ec430717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f654d04c3ec2aa316592a88c64050beff46df745e2b86a932145ad20ec430717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f654d04c3ec2aa316592a88c64050beff46df745e2b86a932145ad20ec430717", kill_on_drop: false }`
[INFO] [stdout] f654d04c3ec2aa316592a88c64050beff46df745e2b86a932145ad20ec430717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0652013cd7b19afac7a7ab8103aadd6ceeddfd6b606050a3b20aff7538267c5
[INFO] running `Command { std: "docker" "start" "-a" "e0652013cd7b19afac7a7ab8103aadd6ceeddfd6b606050a3b20aff7538267c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.24
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/borrow.rs:181:30
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.57
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e0652013cd7b19afac7a7ab8103aadd6ceeddfd6b606050a3b20aff7538267c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0652013cd7b19afac7a7ab8103aadd6ceeddfd6b606050a3b20aff7538267c5", kill_on_drop: false }`
[INFO] [stdout] e0652013cd7b19afac7a7ab8103aadd6ceeddfd6b606050a3b20aff7538267c5
