[INFO] fetching crate diffeq 0.1.0...
[INFO] checking diffeq-0.1.0 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate diffeq 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate diffeq 0.1.0 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diffeq 0.1.0
[INFO] finished tweaking crates.io crate diffeq 0.1.0
[INFO] tweaked toml for crates.io crate diffeq 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] [stderr]   Downloaded nalgebra v0.19.0
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc08513ddbc7764260c9c1ce919ae76810821584d5380014b25d1c65964f6275
[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" "bc08513ddbc7764260c9c1ce919ae76810821584d5380014b25d1c65964f6275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc08513ddbc7764260c9c1ce919ae76810821584d5380014b25d1c65964f6275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc08513ddbc7764260c9c1ce919ae76810821584d5380014b25d1c65964f6275", kill_on_drop: false }`
[INFO] [stdout] bc08513ddbc7764260c9c1ce919ae76810821584d5380014b25d1c65964f6275
[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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3f088f948d1c4a71c20cab848e3ce1bcb1e39f19f90d00f2b8e9fb0f2fe17dd
[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" "d3f088f948d1c4a71c20cab848e3ce1bcb1e39f19f90d00f2b8e9fb0f2fe17dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking diffeq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.98s
[INFO] running `Command { std: "docker" "inspect" "d3f088f948d1c4a71c20cab848e3ce1bcb1e39f19f90d00f2b8e9fb0f2fe17dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f088f948d1c4a71c20cab848e3ce1bcb1e39f19f90d00f2b8e9fb0f2fe17dd", kill_on_drop: false }`
[INFO] [stdout] d3f088f948d1c4a71c20cab848e3ce1bcb1e39f19f90d00f2b8e9fb0f2fe17dd