[INFO] fetching crate gut 0.7.2...
[INFO] testing gut-0.7.2 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate gut 0.7.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate gut 0.7.2 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gut 0.7.2
[INFO] finished tweaking crates.io crate gut 0.7.2
[INFO] tweaked toml for crates.io crate gut 0.7.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d5e0d70c073b606d7ea0be77a5eb17dbf9390589ec2cced904558641042f7aa8
[INFO] running `Command { std: "docker" "start" "-a" "d5e0d70c073b606d7ea0be77a5eb17dbf9390589ec2cced904558641042f7aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5e0d70c073b606d7ea0be77a5eb17dbf9390589ec2cced904558641042f7aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e0d70c073b606d7ea0be77a5eb17dbf9390589ec2cced904558641042f7aa8", kill_on_drop: false }`
[INFO] [stdout] d5e0d70c073b606d7ea0be77a5eb17dbf9390589ec2cced904558641042f7aa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 718a518c0a6000b808a8e461316fb246fd6ba7195564cdaa6d6c4e86888057b1
[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" "718a518c0a6000b808a8e461316fb246fd6ba7195564cdaa6d6c4e86888057b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling bytemuck v1.5.1
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling lz4_flex v0.7.5
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling reinterpret v0.2.1
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling obj v0.10.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling xz2 v0.1.6
[INFO] [stderr]    Compiling autodiff v0.3.2
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling dync-derive v0.4.0
[INFO] [stderr]    Compiling gut-derive v0.5.0
[INFO] [stderr]    Compiling dync v0.5.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling vtkio v0.6.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling flatk-derive v0.2.3
[INFO] [stderr]    Compiling flatk v0.3.2
[INFO] [stderr]    Compiling gut v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 53s
[INFO] running `Command { std: "docker" "inspect" "718a518c0a6000b808a8e461316fb246fd6ba7195564cdaa6d6c4e86888057b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718a518c0a6000b808a8e461316fb246fd6ba7195564cdaa6d6c4e86888057b1", kill_on_drop: false }`
[INFO] [stdout] 718a518c0a6000b808a8e461316fb246fd6ba7195564cdaa6d6c4e86888057b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aafa9410da67218d76885354d1b2545e2883b43df581ad0bd7e9f272f0231b76
[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" "aafa9410da67218d76885354d1b2545e2883b43df581ad0bd7e9f272f0231b76", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.4
[INFO] [stderr]    Compiling gut v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `gut`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gut --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="io"' --cfg 'feature="objio"' --cfg 'feature="vtkio"' -C metadata=a44d7b52c78a0f31 -C extra-filename=-a44d7b52c78a0f31 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-380518855ee23fd6.rlib --extern autodiff=/opt/rustwide/target/debug/deps/libautodiff-8cf1b18d4ec38697.rlib --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-3c16cbfeb16d9ebb.rlib --extern math=/opt/rustwide/target/debug/deps/libcgmath-97f607d0c5f1749e.rlib --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-34017c9fb8880ed2.rlib --extern dync=/opt/rustwide/target/debug/deps/libdync-15285076f27231f6.rlib --extern flatk=/opt/rustwide/target/debug/deps/libflatk-849b5a0bf97426aa.rlib --extern gut_derive=/opt/rustwide/target/debug/deps/libgut_derive-69858762c610ec05.so --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-99b638f3b94b570b.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-b9d75a04b4714f47.rlib --extern objio=/opt/rustwide/target/debug/deps/libobj-63e93957d086354c.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-ae45e5e3ddbe2c47.rlib --extern vtkio=/opt/rustwide/target/debug/deps/libvtkio-b748f4d42d4dc6a3.rlib --cap-lints=forbid -L native=/usr/lib/x86_64-linux-gnu` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "aafa9410da67218d76885354d1b2545e2883b43df581ad0bd7e9f272f0231b76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aafa9410da67218d76885354d1b2545e2883b43df581ad0bd7e9f272f0231b76", kill_on_drop: false }`
[INFO] [stdout] aafa9410da67218d76885354d1b2545e2883b43df581ad0bd7e9f272f0231b76