[INFO] cloning repository https://github.com/maidsafe/safe_client_libs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maidsafe/safe_client_libs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaidsafe%2Fsafe_client_libs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaidsafe%2Fsafe_client_libs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47896a3c8b4c58f5f3483b10fefe9447917994ef
[INFO] checking maidsafe/safe_client_libs against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaidsafe%2Fsafe_client_libs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maidsafe/safe_client_libs on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maidsafe/safe_client_libs
[INFO] finished tweaking git repo https://github.com/maidsafe/safe_client_libs
[INFO] tweaked toml for git repo https://github.com/maidsafe/safe_client_libs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/maidsafe/safe_client_libs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "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" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 539a1bdfc8e6af2662c380202a8023d07054930fc7ba577127388bf2ff63ccd8
[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" "539a1bdfc8e6af2662c380202a8023d07054930fc7ba577127388bf2ff63ccd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "539a1bdfc8e6af2662c380202a8023d07054930fc7ba577127388bf2ff63ccd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539a1bdfc8e6af2662c380202a8023d07054930fc7ba577127388bf2ff63ccd8", kill_on_drop: false }`
[INFO] [stdout] 539a1bdfc8e6af2662c380202a8023d07054930fc7ba577127388bf2ff63ccd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c03e72fe860e4ac0b99a920ffdb64bba37ba3f624d7b3d17655004f171d01f1
[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" "1c03e72fe860e4ac0b99a920ffdb64bba37ba3f624d7b3d17655004f171d01f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling data-encoding v2.3.1
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking base-x v0.2.8
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking zeroize v0.5.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking xmltree v0.10.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking dirs-sys-next v0.1.1
[INFO] [stderr]     Checking socket2 v0.3.17
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking brotli-decompressor v2.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking dbl v0.2.1
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking dirs-next v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking block-modes v0.3.3
[INFO] [stderr]     Checking ctr v0.3.2
[INFO] [stderr]     Checking cmac v0.2.0
[INFO] [stderr]     Checking pmac v0.2.0
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking sha2 v0.9.2
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking miscreant v0.4.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking pem v0.8.2
[INFO] [stderr]     Checking brotli v3.3.0
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.2.19
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking lru v0.5.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling ff_derive v0.6.0
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.9
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr] error: could not compile `async-trait`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name async_trait --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-trait-0.1.42/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=5fd7f14e1ebea33d -C extra-filename=-5fd7f14e1ebea33d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8a8bb825df9136cb.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-944c052ceb08ffd8.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-73ccac04c9db1a93.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1c03e72fe860e4ac0b99a920ffdb64bba37ba3f624d7b3d17655004f171d01f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c03e72fe860e4ac0b99a920ffdb64bba37ba3f624d7b3d17655004f171d01f1", kill_on_drop: false }`
[INFO] [stdout] 1c03e72fe860e4ac0b99a920ffdb64bba37ba3f624d7b3d17655004f171d01f1