[INFO] fetching crate variational-regression 0.1.0...
[INFO] building variational-regression-0.1.0 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] extracting crate variational-regression 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate variational-regression 0.1.0 on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate variational-regression 0.1.0
[INFO] finished tweaking crates.io crate variational-regression 0.1.0
[INFO] tweaked toml for crates.io crate variational-regression 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding nalgebra v0.29.0 (available: v0.33.2)
[INFO] [stderr]       Adding special v0.8.1 (available: v0.11.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab7db714e8499a74f97b4698c108a126e550ab9affdb5961696aa5ae53061bca
[INFO] running `Command { std: "docker" "start" "-a" "ab7db714e8499a74f97b4698c108a126e550ab9affdb5961696aa5ae53061bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab7db714e8499a74f97b4698c108a126e550ab9affdb5961696aa5ae53061bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7db714e8499a74f97b4698c108a126e550ab9affdb5961696aa5ae53061bca", kill_on_drop: false }`
[INFO] [stdout] ab7db714e8499a74f97b4698c108a126e550ab9affdb5961696aa5ae53061bca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f70511297861af218df37880f79526c3f664f98db0acdf7aae0ad26d5cd50c7
[INFO] running `Command { std: "docker" "start" "-a" "2f70511297861af218df37880f79526c3f664f98db0acdf7aae0ad26d5cd50c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling bytemuck v1.23.0
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling safe_arch v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling wide v0.7.32
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling special v0.8.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling simba v0.6.0
[INFO] [stderr]    Compiling nalgebra v0.29.0
[INFO] [stderr]    Compiling variational-regression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.86s
[INFO] running `Command { std: "docker" "inspect" "2f70511297861af218df37880f79526c3f664f98db0acdf7aae0ad26d5cd50c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f70511297861af218df37880f79526c3f664f98db0acdf7aae0ad26d5cd50c7", kill_on_drop: false }`
[INFO] [stdout] 2f70511297861af218df37880f79526c3f664f98db0acdf7aae0ad26d5cd50c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19638ecd29f427ecd8c8619fd5e999fc90e00d39908b1929ed7f53a3be9126d7
[INFO] running `Command { std: "docker" "start" "-a" "19638ecd29f427ecd8c8619fd5e999fc90e00d39908b1929ed7f53a3be9126d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling variational-regression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "19638ecd29f427ecd8c8619fd5e999fc90e00d39908b1929ed7f53a3be9126d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19638ecd29f427ecd8c8619fd5e999fc90e00d39908b1929ed7f53a3be9126d7", kill_on_drop: false }`
[INFO] [stdout] 19638ecd29f427ecd8c8619fd5e999fc90e00d39908b1929ed7f53a3be9126d7