[INFO] fetching crate mongo-file-center 0.6.6...
[INFO] testing mongo-file-center-0.6.6 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate mongo-file-center 0.6.6 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate mongo-file-center 0.6.6 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mongo-file-center 0.6.6
[INFO] finished tweaking crates.io crate mongo-file-center 0.6.6
[INFO] tweaked toml for crates.io crate mongo-file-center 0.6.6 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 657480a8392fc9c035d043599393c63cf11d275f0b34db3838523350145eaa3d
[INFO] running `Command { std: "docker" "start" "-a" "657480a8392fc9c035d043599393c63cf11d275f0b34db3838523350145eaa3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "657480a8392fc9c035d043599393c63cf11d275f0b34db3838523350145eaa3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "657480a8392fc9c035d043599393c63cf11d275f0b34db3838523350145eaa3d", kill_on_drop: false }`
[INFO] [stdout] 657480a8392fc9c035d043599393c63cf11d275f0b34db3838523350145eaa3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c27b887fb27f82ee3093deee4c274ddf2d3cb8f69209491708d28b566f3452e3
[INFO] running `Command { std: "docker" "start" "-a" "c27b887fb27f82ee3093deee4c274ddf2d3cb8f69209491708d28b566f3452e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling debug-helper v0.3.13
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling base32 v0.4.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling base64-url v1.4.13
[INFO] [stderr]    Compiling rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling os_info v3.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling typed-builder v0.9.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling enum-as-inner v0.3.4
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling crc-any v2.4.2
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling short-crypt v1.0.26
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr] error: could not compile `tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name tokio --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-1.17.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="macros"' --cfg 'feature="memchr"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="num_cpus"' --cfg 'feature="rt"' --cfg 'feature="rt-multi-thread"' --cfg 'feature="socket2"' --cfg 'feature="sync"' --cfg 'feature="time"' --cfg 'feature="tokio-macros"' -C metadata=feeab01e24ed9efe -C extra-filename=-feeab01e24ed9efe --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-44851e2768c88cca.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-44afddf82674132d.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-794f323e2c3fede3.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-0637d96ebd86aaf9.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-bd7920a8383fd529.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-02e5e2d23f061f41.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-79600dd3bae8a846.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-59d79a4c105a8d8f.so --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `darling_core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name darling_core --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/darling_core-0.13.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="strsim"' --cfg 'feature="suggestions"' -C metadata=18dba0c51a3a2938 -C extra-filename=-18dba0c51a3a2938 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-bb690c336855f248.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-f9e0d0fa5402f0d8.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-bb2897dcb479b629.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6e47dd3f693995db.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-be6ba759f95a5238.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-a5f17aae8a7ac9ea.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.21/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="default"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=cbc6b982687ad7ca -C extra-filename=-cbc6b982687ad7ca --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-299f420b688515a8.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-bc69f05f921d553c.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-45895cbd5e40e901.so --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-75aea577ef225ea7.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-794f323e2c3fede3.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-02e5e2d23f061f41.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-501725f4e360d46d.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-e8ae452aba6ff62c.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "c27b887fb27f82ee3093deee4c274ddf2d3cb8f69209491708d28b566f3452e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c27b887fb27f82ee3093deee4c274ddf2d3cb8f69209491708d28b566f3452e3", kill_on_drop: false }`
[INFO] [stdout] c27b887fb27f82ee3093deee4c274ddf2d3cb8f69209491708d28b566f3452e3