[INFO] cloning repository https://github.com/fbucek/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fbucek/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbucek%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbucek%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9e6519936a7feebba6cd7b9148e88378b2c6b60
[INFO] checking fbucek/rust-learning against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffbucek%2Frust-learning" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fbucek/rust-learning on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fbucek/rust-learning
[INFO] finished tweaking git repo https://github.com/fbucek/rust-learning
[INFO] tweaked toml for git repo https://github.com/fbucek/rust-learning written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/fbucek/rust-learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2ffbd35edece6503d94590565d6388ad303821daa7425c4fb9427a9fcef2079
[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" "a2ffbd35edece6503d94590565d6388ad303821daa7425c4fb9427a9fcef2079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2ffbd35edece6503d94590565d6388ad303821daa7425c4fb9427a9fcef2079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ffbd35edece6503d94590565d6388ad303821daa7425c4fb9427a9fcef2079", kill_on_drop: false }`
[INFO] [stdout] a2ffbd35edece6503d94590565d6388ad303821daa7425c4fb9427a9fcef2079
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 2acbd0bcc9c4fcb619200c634b3cf6536b6c255ce847d208477debce3f5ae3d9
[INFO] running `Command { std: "docker" "start" "-a" "2acbd0bcc9c4fcb619200c634b3cf6536b6c255ce847d208477debce3f5ae3d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking testing v0.1.0 (/opt/rustwide/workdir/testing)
[INFO] [stderr]     Checking smart-pointers v0.1.0 (/opt/rustwide/workdir/smart-pointers)
[INFO] [stderr]     Checking Test v0.1.0 (/opt/rustwide/workdir/person)
[INFO] [stderr]     Checking loops v0.1.0 (/opt/rustwide/workdir/loops)
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir/strings)
[INFO] [stderr]     Checking vecmacro v0.1.0 (/opt/rustwide/workdir/vecmacro)
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]     Checking collections v0.1.0 (/opt/rustwide/workdir/collections)
[INFO] [stderr]     Checking autotests v0.1.0 (/opt/rustwide/workdir/autotests)
[INFO] [stderr]     Checking generic-types v0.1.0 (/opt/rustwide/workdir/generic-types)
[INFO] [stderr]     Checking lifetimes v0.1.0 (/opt/rustwide/workdir/lifetimes)
[INFO] [stderr]     Checking error v0.1.0 (/opt/rustwide/workdir/error)
[INFO] [stderr]     Checking hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo)
[INFO] [stderr]     Checking closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stderr]     Checking hasmap v0.1.0 (/opt/rustwide/workdir/hashmap)
[INFO] [stderr]     Checking reference-cycle v0.1.0 (/opt/rustwide/workdir/reference-cycle)
[INFO] [stderr]     Checking coins v0.1.0 (/opt/rustwide/workdir/coins)
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking encoding_rs v0.8.22
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking backtrace v0.3.43
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game)
[INFO] [stderr]     Checking error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling actix-macros v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling async-trait v0.1.22
[INFO] [stderr]    Compiling enum-as-inner v0.3.0
[INFO] [stderr]    Compiling actix-web-codegen v0.2.0
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]    Compiling actix_derive v0.5.0
[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-0.1.22/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=6de2305ade8f8f30 -C extra-filename=-6de2305ade8f8f30 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-92b40f23d32424f8.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-7ef3b8104a05334e.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-e95cac53ef5e37a5.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" "2acbd0bcc9c4fcb619200c634b3cf6536b6c255ce847d208477debce3f5ae3d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2acbd0bcc9c4fcb619200c634b3cf6536b6c255ce847d208477debce3f5ae3d9", kill_on_drop: false }`
[INFO] [stdout] 2acbd0bcc9c4fcb619200c634b3cf6536b6c255ce847d208477debce3f5ae3d9