[INFO] fetching crate serde-version 0.5.1... [INFO] checking serde-version-0.5.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] extracting crate serde-version 0.5.1 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate serde-version 0.5.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate serde-version 0.5.1 [INFO] finished tweaking crates.io crate serde-version 0.5.1 [INFO] tweaked toml for crates.io crate serde-version 0.5.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate crates.io crate serde-version 0.5.1 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded type-name v0.1.0 [INFO] [stderr] Downloaded quickcheck_macros v0.8.0 [INFO] [stderr] Downloaded proc-macro-util v0.1.1 [INFO] [stderr] Downloaded serde_version_derive v0.5.1 [INFO] [stderr] Downloaded ron v0.5.1 [INFO] [stderr] Downloaded serde_test v1.0.103 [INFO] [stderr] Downloaded serde_derive v1.0.103 [INFO] [stderr] Downloaded quickcheck v0.8.5 [INFO] [stderr] Downloaded serde v1.0.103 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a09a2f207ca452afaf2a7ca6cc7a02d1776d8690cee5806972c80b296001f20c [INFO] running `Command { std: "docker" "start" "-a" "a09a2f207ca452afaf2a7ca6cc7a02d1776d8690cee5806972c80b296001f20c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a09a2f207ca452afaf2a7ca6cc7a02d1776d8690cee5806972c80b296001f20c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a09a2f207ca452afaf2a7ca6cc7a02d1776d8690cee5806972c80b296001f20c", kill_on_drop: false }` [INFO] [stdout] a09a2f207ca452afaf2a7ca6cc7a02d1776d8690cee5806972c80b296001f20c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 12cb53557feb467e167d28704bd2b30cb766261896215c387aec4ce07273693e [INFO] running `Command { std: "docker" "start" "-a" "12cb53557feb467e167d28704bd2b30cb766261896215c387aec4ce07273693e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling cc v1.0.47 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling serde v1.0.103 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking type-name v0.1.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking quickcheck v0.8.5 [INFO] [stderr] Compiling backtrace v0.3.40 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling quickcheck_macros v0.8.0 [INFO] [stderr] Compiling serde_derive v1.0.103 [INFO] [stderr] Compiling failure v0.1.6 [INFO] [stderr] Compiling proc-macro-util v0.1.1 [INFO] [stderr] Compiling serde_version_derive v0.5.1 [INFO] [stderr] Checking ron v0.5.1 [INFO] [stderr] Checking serde_test v1.0.103 [INFO] [stderr] Checking serde-version v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 34 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 34 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.16s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: serde_test v1.0.103 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "12cb53557feb467e167d28704bd2b30cb766261896215c387aec4ce07273693e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12cb53557feb467e167d28704bd2b30cb766261896215c387aec4ce07273693e", kill_on_drop: false }` [INFO] [stdout] 12cb53557feb467e167d28704bd2b30cb766261896215c387aec4ce07273693e