[INFO] fetching crate cervo-core 0.5.0...
[INFO] checking cervo-core-0.5.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate cervo-core 0.5.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate cervo-core 0.5.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cervo-core 0.5.0
[INFO] finished tweaking crates.io crate cervo-core 0.5.0
[INFO] tweaked toml for crates.io crate cervo-core 0.5.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 115 packages
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding derive-new v0.5.9 (latest: v0.6.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding half v2.2.1 (latest: v2.4.0)
[INFO] [stderr]       Adding hashbrown v0.11.2 (latest: v0.14.3)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding ordered-float v3.9.2 (latest: v4.2.0)
[INFO] [stderr]       Adding perchance v0.4.0 (latest: v0.5.3)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding string-interner v0.14.0 (latest: v0.15.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding time v0.3.23 (latest: v0.3.34)
[INFO] [stderr]       Adding time-core v0.1.1 (latest: v0.1.2)
[INFO] [stderr]       Adding time-macros v0.2.10 (latest: v0.2.17)
[INFO] [stderr]       Adding tract-core v0.20.22 (latest: v0.21.3)
[INFO] [stderr]       Adding tract-data v0.20.22 (latest: v0.21.3)
[INFO] [stderr]       Adding tract-hir v0.20.22 (latest: v0.21.3)
[INFO] [stderr]       Adding tract-linalg v0.20.22 (latest: v0.21.3)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scan_fmt v0.2.6
[INFO] [stderr]   Downloaded half v2.2.1
[INFO] [stderr]   Downloaded kstring v2.0.0
[INFO] [stderr]   Downloaded tract-data v0.20.22
[INFO] [stderr]   Downloaded liquid v0.26.4
[INFO] [stderr]   Downloaded time-macros v0.2.10
[INFO] [stderr]   Downloaded string-interner v0.14.0
[INFO] [stderr]   Downloaded perchance v0.4.0
[INFO] [stderr]   Downloaded primal-check v0.3.3
[INFO] [stderr]   Downloaded liquid-lib v0.26.4
[INFO] [stderr]   Downloaded time v0.3.23
[INFO] [stderr]   Downloaded tract-linalg v0.20.22
[INFO] [stderr]   Downloaded rustfft v6.2.0
[INFO] [stderr]   Downloaded tract-core v0.20.22
[INFO] [stderr]   Downloaded liquid-core v0.26.4
[INFO] [stderr]   Downloaded transpose v0.2.3
[INFO] [stderr]   Downloaded liquid-derive v0.26.4
[INFO] [stderr]   Downloaded tract-hir v0.20.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39fdfab6957b9e745d29ebe9a45346ea90967975d2554b0056060c3bfec13cd2
[INFO] running `Command { std: "docker" "start" "-a" "39fdfab6957b9e745d29ebe9a45346ea90967975d2554b0056060c3bfec13cd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39fdfab6957b9e745d29ebe9a45346ea90967975d2554b0056060c3bfec13cd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39fdfab6957b9e745d29ebe9a45346ea90967975d2554b0056060c3bfec13cd2", kill_on_drop: false }`
[INFO] [stdout] 39fdfab6957b9e745d29ebe9a45346ea90967975d2554b0056060c3bfec13cd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b105f2d9a2cbc3bca4d37202ae58b0b65c0ba345fd0c7b92d7c4357c161eed5
[INFO] running `Command { std: "docker" "start" "-a" "2b105f2d9a2cbc3bca4d37202ae58b0b65c0ba345fd0c7b92d7c4357c161eed5", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]    Compiling liquid-derive v0.26.4
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling kstring v2.0.0
[INFO] [stderr]    Compiling time-macros v0.2.10
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling anymap2 v0.13.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling half v2.2.1
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking string-interner v0.14.0
[INFO] [stderr]     Checking scan_fmt v0.2.6
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling rustfft v6.2.0
[INFO] [stderr]    Compiling time v0.3.23
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking primal-check v0.3.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking perchance v0.4.0
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]    Compiling liquid-core v0.26.4
[INFO] [stderr]     Checking tract-data v0.20.22
[INFO] [stderr]    Compiling liquid-lib v0.26.4
[INFO] [stderr]    Compiling liquid v0.26.4
[INFO] [stderr]    Compiling tract-linalg v0.20.22
[INFO] [stderr]     Checking tract-core v0.20.22
[INFO] [stderr]     Checking tract-hir v0.20.22
[INFO] [stderr]     Checking cervo-core v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.96s
[INFO] running `Command { std: "docker" "inspect" "2b105f2d9a2cbc3bca4d37202ae58b0b65c0ba345fd0c7b92d7c4357c161eed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b105f2d9a2cbc3bca4d37202ae58b0b65c0ba345fd0c7b92d7c4357c161eed5", kill_on_drop: false }`
[INFO] [stdout] 2b105f2d9a2cbc3bca4d37202ae58b0b65c0ba345fd0c7b92d7c4357c161eed5