[INFO] cloning repository https://github.com/TinyPandas/TinyGuardianRS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TinyPandas/TinyGuardianRS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTinyPandas%2FTinyGuardianRS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTinyPandas%2FTinyGuardianRS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15560e8806c8cc4e15a6f16544d60be4dde23ea5
[INFO] documenting TinyPandas/TinyGuardianRS against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTinyPandas%2FTinyGuardianRS" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TinyPandas/TinyGuardianRS on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TinyPandas/TinyGuardianRS
[INFO] finished tweaking git repo https://github.com/TinyPandas/TinyGuardianRS
[INFO] tweaked toml for git repo https://github.com/TinyPandas/TinyGuardianRS written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/TinyPandas/TinyGuardianRS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a830916cd3023f6fb7ffe23638c3302570da1efbaf9c1938504cbcb881f9ab95
[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" "a830916cd3023f6fb7ffe23638c3302570da1efbaf9c1938504cbcb881f9ab95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a830916cd3023f6fb7ffe23638c3302570da1efbaf9c1938504cbcb881f9ab95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a830916cd3023f6fb7ffe23638c3302570da1efbaf9c1938504cbcb881f9ab95", kill_on_drop: false }`
[INFO] [stdout] a830916cd3023f6fb7ffe23638c3302570da1efbaf9c1938504cbcb881f9ab95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebc823663f321f08d8c16e392f943f4ee44657293ee5ae58cf85ac14113cadad
[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" "ebc823663f321f08d8c16e392f943f4ee44657293ee5ae58cf85ac14113cadad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serenity v0.9.0-rc.0
[INFO] [stderr]     Checking kankyo v0.2.0
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libz-sys v1.1.0
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking tracing v0.1.18
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking os_info v2.0.7
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.18.0
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling command_attr v0.3.0-rc.0
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking tokio v0.2.22
[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-0.1.36/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -Cembed-bitcode=no -C debuginfo=2 -C metadata=f2771b4135f1c922 -C extra-filename=-f2771b4135f1c922 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d3dc0cb999b3c41d.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-75a4c566bf65e716.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-407df591b7f0eb24.rlib --extern proc_macro --cap-lints allow` (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" "ebc823663f321f08d8c16e392f943f4ee44657293ee5ae58cf85ac14113cadad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc823663f321f08d8c16e392f943f4ee44657293ee5ae58cf85ac14113cadad", kill_on_drop: false }`
[INFO] [stdout] ebc823663f321f08d8c16e392f943f4ee44657293ee5ae58cf85ac14113cadad