[INFO] fetching crate serde-version 0.5.1... [INFO] checking serde-version-0.5.1 against master#c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b for pr-104616 [INFO] extracting crate serde-version 0.5.1 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate serde-version 0.5.1 on toolchain c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "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-4/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: "/workspace/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro-util v0.1.1 [INFO] [stderr] Downloaded serde v1.0.103 [INFO] [stderr] Downloaded cc v1.0.47 [INFO] [stderr] Downloaded serde_version_derive v0.5.1 [INFO] [stderr] Downloaded syn v1.0.8 [INFO] [stderr] Downloaded serde_derive v1.0.103 [INFO] [stderr] Downloaded serde_test v1.0.103 [INFO] [stderr] Downloaded type-name v0.1.0 [INFO] [stderr] Downloaded toml v0.5.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cf5cbda63f82eaa3e77b72486da0b0a91dc65c585eac40c0d21438f257920bbd [INFO] running `Command { std: "docker" "start" "-a" "cf5cbda63f82eaa3e77b72486da0b0a91dc65c585eac40c0d21438f257920bbd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf5cbda63f82eaa3e77b72486da0b0a91dc65c585eac40c0d21438f257920bbd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf5cbda63f82eaa3e77b72486da0b0a91dc65c585eac40c0d21438f257920bbd", kill_on_drop: false }` [INFO] [stdout] cf5cbda63f82eaa3e77b72486da0b0a91dc65c585eac40c0d21438f257920bbd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+c5d82ed7a4ad94a538bb87e5016e7d5ce0bd434b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 00c8559b5a0530a8907b1376c00bd282126f8b6b82aef88a89459f0dd0d33983 [INFO] running `Command { std: "docker" "start" "-a" "00c8559b5a0530a8907b1376c00bd282126f8b6b82aef88a89459f0dd0d33983", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling cc v1.0.47 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling serde v1.0.103 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking type-name v0.1.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Compiling backtrace v0.3.40 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking quickcheck v0.8.5 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling serde_derive v1.0.103 [INFO] [stderr] Compiling quickcheck_macros v0.8.0 [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 serde_test v1.0.103 [INFO] [stderr] Checking ron v0.5.1 [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 [unoptimized + debuginfo] target(s) in 22.06s [INFO] running `Command { std: "docker" "inspect" "00c8559b5a0530a8907b1376c00bd282126f8b6b82aef88a89459f0dd0d33983", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00c8559b5a0530a8907b1376c00bd282126f8b6b82aef88a89459f0dd0d33983", kill_on_drop: false }` [INFO] [stdout] 00c8559b5a0530a8907b1376c00bd282126f8b6b82aef88a89459f0dd0d33983