[INFO] fetching crate vngineer-simpleton 1.0.3... [INFO] checking vngineer-simpleton-1.0.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate vngineer-simpleton 1.0.3 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate vngineer-simpleton 1.0.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate vngineer-simpleton 1.0.3 [INFO] finished tweaking crates.io crate vngineer-simpleton 1.0.3 [INFO] tweaked toml for crates.io crate vngineer-simpleton 1.0.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 92 packages [INFO] [stderr] Adding fixedbitset v0.4.2 (latest: v0.5.6) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.0.0) [INFO] [stderr] Adding hash32 v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (latest: v0.8.0) [INFO] [stderr] Adding intuicio-backend-vm v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-core v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-data v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-derive v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-essentials v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-frontend-simpleton v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-nodes v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-plugins v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding memoffset v0.8.0 (latest: v0.9.1) [INFO] [stderr] Adding rstar v0.10.0 (latest: v0.12.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding toml v0.7.8 (latest: v0.8.12) [INFO] [stderr] Adding toml_edit v0.19.15 (latest: v0.22.9) [INFO] [stderr] Adding uuid v0.8.2 (latest: v1.8.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding winnow v0.5.40 (latest: v0.6.5) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded intuicio-plugins v0.13.1 [INFO] [stderr] Downloaded vngineer-core v1.0.3 [INFO] [stderr] Downloaded intuicio-core v0.13.1 [INFO] [stderr] Downloaded intuicio-frontend-simpleton v0.13.1 [INFO] [stderr] Downloaded serde-intermediate-derive v1.6.0 [INFO] [stderr] Downloaded serde-intermediate v1.6.0 [INFO] [stderr] Downloaded intuicio-nodes v0.13.1 [INFO] [stderr] Downloaded rstar v0.10.0 [INFO] [stderr] Downloaded intuicio-derive v0.13.1 [INFO] [stderr] Downloaded intuicio-essentials v0.13.1 [INFO] [stderr] Downloaded intuicio-backend-vm v0.13.1 [INFO] [stderr] Downloaded intuicio-data v0.13.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6d02c1cac004b04d16c2645f44cce4df4c3a42544d23ba50a3bbceb119616930 [INFO] running `Command { std: "docker" "start" "-a" "6d02c1cac004b04d16c2645f44cce4df4c3a42544d23ba50a3bbceb119616930", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6d02c1cac004b04d16c2645f44cce4df4c3a42544d23ba50a3bbceb119616930", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d02c1cac004b04d16c2645f44cce4df4c3a42544d23ba50a3bbceb119616930", kill_on_drop: false }` [INFO] [stdout] 6d02c1cac004b04d16c2645f44cce4df4c3a42544d23ba50a3bbceb119616930 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f23e274cca7ab6f6f79de706a45fd3055c1221f299d1448a34ef5943eeb06984 [INFO] running `Command { std: "docker" "start" "-a" "f23e274cca7ab6f6f79de706a45fd3055c1221f299d1448a34ef5943eeb06984", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.7.2 [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Checking libloading v0.8.3 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking fixedbitset v0.4.2 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking unicode_categories v0.1.1 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Compiling intuicio-derive v0.13.1 [INFO] [stderr] Compiling serde-intermediate-derive v1.6.0 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking petgraph v0.6.4 [INFO] [stderr] Checking rstar v0.10.0 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Compiling pest v2.7.9 [INFO] [stderr] Checking snailquote v0.3.1 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Compiling pest_meta v2.7.9 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Compiling pest_generator v2.7.9 [INFO] [stderr] Compiling pest_derive v2.7.9 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking serde_spanned v0.6.5 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking serde-intermediate v1.6.0 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking toml_edit v0.19.15 [INFO] [stderr] Checking typid v1.1.1 [INFO] [stderr] Checking intuicio-data v0.13.1 [INFO] [stderr] Checking intuicio-core v0.13.1 [INFO] [stderr] Checking intuicio-plugins v0.13.1 [INFO] [stderr] Checking intuicio-backend-vm v0.13.1 [INFO] [stderr] Checking intuicio-essentials v0.13.1 [INFO] [stderr] Checking vngineer-core v1.0.3 [INFO] [stderr] Checking toml v0.7.8 [INFO] [stderr] Checking intuicio-nodes v0.13.1 [INFO] [stderr] Checking intuicio-frontend-simpleton v0.13.1 [INFO] [stderr] Checking vngineer-simpleton v1.0.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.33s [INFO] running `Command { std: "docker" "inspect" "f23e274cca7ab6f6f79de706a45fd3055c1221f299d1448a34ef5943eeb06984", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f23e274cca7ab6f6f79de706a45fd3055c1221f299d1448a34ef5943eeb06984", kill_on_drop: false }` [INFO] [stdout] f23e274cca7ab6f6f79de706a45fd3055c1221f299d1448a34ef5943eeb06984 [INFO] checking vngineer-simpleton-1.0.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate vngineer-simpleton 1.0.3 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate vngineer-simpleton 1.0.3 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate vngineer-simpleton 1.0.3 [INFO] finished tweaking crates.io crate vngineer-simpleton 1.0.3 [INFO] tweaked toml for crates.io crate vngineer-simpleton 1.0.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 92 packages [INFO] [stderr] Adding fixedbitset v0.4.2 (latest: v0.5.6) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.0.0) [INFO] [stderr] Adding hash32 v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (latest: v0.8.0) [INFO] [stderr] Adding intuicio-backend-vm v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-core v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-data v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-derive v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-essentials v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-frontend-simpleton v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-nodes v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding intuicio-plugins v0.13.1 (latest: v0.31.6) [INFO] [stderr] Adding memoffset v0.8.0 (latest: v0.9.1) [INFO] [stderr] Adding rstar v0.10.0 (latest: v0.12.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding toml v0.7.8 (latest: v0.8.12) [INFO] [stderr] Adding toml_edit v0.19.15 (latest: v0.22.9) [INFO] [stderr] Adding uuid v0.8.2 (latest: v1.8.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding winnow v0.5.40 (latest: v0.6.5) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bf98780f4e09d2d29338a9688140ac0206cdbb1aae7696887eb1b3a561e6958e [INFO] running `Command { std: "docker" "start" "-a" "bf98780f4e09d2d29338a9688140ac0206cdbb1aae7696887eb1b3a561e6958e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bf98780f4e09d2d29338a9688140ac0206cdbb1aae7696887eb1b3a561e6958e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf98780f4e09d2d29338a9688140ac0206cdbb1aae7696887eb1b3a561e6958e", kill_on_drop: false }` [INFO] [stdout] bf98780f4e09d2d29338a9688140ac0206cdbb1aae7696887eb1b3a561e6958e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5775ecbaf929751f39d96237dbeb75a706f6054433c9b91274397e87e0374f44 [INFO] running `Command { std: "docker" "start" "-a" "5775ecbaf929751f39d96237dbeb75a706f6054433c9b91274397e87e0374f44", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.7.2 [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Checking libloading v0.8.3 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking fixedbitset v0.4.2 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Compiling serde-intermediate-derive v1.6.0 [INFO] [stderr] Compiling intuicio-derive v0.13.1 [INFO] [stderr] Checking unicode_categories v0.1.1 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking petgraph v0.6.4 [INFO] [stderr] Checking rstar v0.10.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Compiling pest v2.7.9 [INFO] [stderr] Checking snailquote v0.3.1 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Compiling pest_meta v2.7.9 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Compiling pest_generator v2.7.9 [INFO] [stderr] Compiling pest_derive v2.7.9 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking serde_spanned v0.6.5 [INFO] [stderr] Checking serde-intermediate v1.6.0 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking toml_edit v0.19.15 [INFO] [stderr] Checking typid v1.1.1 [INFO] [stderr] Checking intuicio-data v0.13.1 [INFO] [stderr] Checking intuicio-core v0.13.1 [INFO] [stderr] Checking intuicio-plugins v0.13.1 [INFO] [stderr] Checking intuicio-backend-vm v0.13.1 [INFO] [stderr] Checking intuicio-essentials v0.13.1 [INFO] [stderr] Checking vngineer-core v1.0.3 [INFO] [stderr] Checking toml v0.7.8 [INFO] [stderr] Checking intuicio-nodes v0.13.1 [INFO] [stderr] Checking intuicio-frontend-simpleton v0.13.1 [INFO] [stderr] Checking vngineer-simpleton v1.0.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.19s [INFO] running `Command { std: "docker" "inspect" "5775ecbaf929751f39d96237dbeb75a706f6054433c9b91274397e87e0374f44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5775ecbaf929751f39d96237dbeb75a706f6054433c9b91274397e87e0374f44", kill_on_drop: false }` [INFO] [stdout] 5775ecbaf929751f39d96237dbeb75a706f6054433c9b91274397e87e0374f44