[INFO] fetching crate testing 0.6.0... [INFO] checking testing-0.6.0 against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323 [INFO] extracting crate testing 0.6.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate testing 0.6.0 on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate testing 0.6.0 [INFO] finished tweaking crates.io crate testing 0.6.0 [INFO] tweaked toml for crates.io crate testing 0.6.0 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4a17e47ea6133a1b5765537891cce1f78b3c9a1334513384ae64042e3e38b613 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4a17e47ea6133a1b5765537891cce1f78b3c9a1334513384ae64042e3e38b613", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a17e47ea6133a1b5765537891cce1f78b3c9a1334513384ae64042e3e38b613", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a17e47ea6133a1b5765537891cce1f78b3c9a1334513384ae64042e3e38b613", kill_on_drop: false }` [INFO] [stdout] 4a17e47ea6133a1b5765537891cce1f78b3c9a1334513384ae64042e3e38b613 [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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8f49c6238281477d4e6463300045fa55cc7f14be63f67e87a6bca2b6fd15ba64 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8f49c6238281477d4e6463300045fa55cc7f14be63f67e87a6bca2b6fd15ba64", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling libc v0.2.72 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking tinyvec v0.3.3 [INFO] [stderr] Compiling serde_json v1.0.56 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking if_chain v1.0.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking owning_ref v0.4.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking unicode-normalization v0.1.13 [INFO] [stderr] Checking smallvec v0.6.13 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling syn v1.0.34 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Compiling const-random-macro v0.1.8 [INFO] [stderr] Checking url v2.1.1 [INFO] [stderr] Checking const-random v0.1.8 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Checking dashmap v3.5.1 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling pmutil v0.5.3 [INFO] [stderr] Compiling swc_macros_common v0.3.1 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling from_variant v0.1.2 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling ast_node v0.6.1 [INFO] [stderr] Checking serde v1.0.114 [INFO] [stderr] Checking string_cache v0.8.0 [INFO] [stderr] Checking sourcemap v6.0.0 [INFO] [stderr] Checking swc_common v0.6.2 [INFO] [stderr] Checking testing v0.6.0 (/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:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [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:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 38s [INFO] running `Command { std: "docker" "inspect" "8f49c6238281477d4e6463300045fa55cc7f14be63f67e87a6bca2b6fd15ba64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f49c6238281477d4e6463300045fa55cc7f14be63f67e87a6bca2b6fd15ba64", kill_on_drop: false }` [INFO] [stdout] 8f49c6238281477d4e6463300045fa55cc7f14be63f67e87a6bca2b6fd15ba64