[INFO] fetching crate couch_rs 0.8.25...
[INFO] testing couch_rs-0.8.25 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate couch_rs 0.8.25 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate couch_rs 0.8.25 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate couch_rs 0.8.25
[INFO] finished tweaking crates.io crate couch_rs 0.8.25
[INFO] tweaked toml for crates.io crate couch_rs 0.8.25 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate couch_rs 0.8.25 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded couch_rs_derive v0.8.24
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 462e9e6fc0fa0388673a4f4fee25167d19bfb2049e72a140e37d552135b9712e
[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" "462e9e6fc0fa0388673a4f4fee25167d19bfb2049e72a140e37d552135b9712e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "462e9e6fc0fa0388673a4f4fee25167d19bfb2049e72a140e37d552135b9712e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "462e9e6fc0fa0388673a4f4fee25167d19bfb2049e72a140e37d552135b9712e", kill_on_drop: false }`
[INFO] [stdout] 462e9e6fc0fa0388673a4f4fee25167d19bfb2049e72a140e37d552135b9712e
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--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] 46dbb5cce9a779e2edc287faea1b37015c6e02529cebcf8aaf4d49e63865a1ea
[INFO] running `Command { std: "docker" "start" "-a" "46dbb5cce9a779e2edc287faea1b37015c6e02529cebcf8aaf4d49e63865a1ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]    Compiling tinyvec v1.0.1
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling couch_rs_derive v0.8.24
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.14
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling socket2 v0.3.16
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling async-compression v0.3.6
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling publicsuffix v1.5.4
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling cookie_store v0.12.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.8
[INFO] [stderr]    Compiling couch_rs v0.8.25 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "46dbb5cce9a779e2edc287faea1b37015c6e02529cebcf8aaf4d49e63865a1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46dbb5cce9a779e2edc287faea1b37015c6e02529cebcf8aaf4d49e63865a1ea", kill_on_drop: false }`
[INFO] [stdout] 46dbb5cce9a779e2edc287faea1b37015c6e02529cebcf8aaf4d49e63865a1ea
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 063ccaef821a827272b848aaa7f274d414c1cfe321f43d6ed83faeb04d0c1273
[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" "063ccaef821a827272b848aaa7f274d414c1cfe321f43d6ed83faeb04d0c1273", kill_on_drop: false }`
[INFO] [stderr]    Compiling couch_rs v0.8.25 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `couch_rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name couch_rs --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="couch_rs_derive"' --cfg 'feature="default"' --cfg 'feature="derive"' -C metadata=0208a93c3b4f77f4 -C extra-filename=-0208a93c3b4f77f4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-eb76252f3a009c81.rlib --extern couch_rs_derive=/opt/rustwide/target/debug/deps/libcouch_rs_derive-337dc63bafffe2f3.so --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-a8bb19e5c99795cb.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-14a3d62de8d7e654.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-625d301e00e113f3.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-580d44f340c1faec.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-f6c3336a6f66969f.rlib --cap-lints=warn` (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" "063ccaef821a827272b848aaa7f274d414c1cfe321f43d6ed83faeb04d0c1273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "063ccaef821a827272b848aaa7f274d414c1cfe321f43d6ed83faeb04d0c1273", kill_on_drop: false }`
[INFO] [stdout] 063ccaef821a827272b848aaa7f274d414c1cfe321f43d6ed83faeb04d0c1273