[INFO] fetching crate couch_rs 0.8.25...
[INFO] testing couch_rs-0.8.25 against 1.49.0 for beta-1.50-1
[INFO] extracting crate couch_rs 0.8.25 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate couch_rs 0.8.25 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-8/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e9200fa0de85bfe43af9eb1f675a651b14d492256b8b475ea1a1bed429b3d18
[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" "9e9200fa0de85bfe43af9eb1f675a651b14d492256b8b475ea1a1bed429b3d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e9200fa0de85bfe43af9eb1f675a651b14d492256b8b475ea1a1bed429b3d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9200fa0de85bfe43af9eb1f675a651b14d492256b8b475ea1a1bed429b3d18", kill_on_drop: false }`
[INFO] [stdout] 9e9200fa0de85bfe43af9eb1f675a651b14d492256b8b475ea1a1bed429b3d18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1870c63e6b118d12f59b32e62c0bb0b739fe3d2ecc482cf07f19bdbe0d5e6142
[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" "1870c63e6b118d12f59b32e62c0bb0b739fe3d2ecc482cf07f19bdbe0d5e6142", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling publicsuffix v1.5.4
[INFO] [stderr]    Compiling async-compression v0.3.6
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling couch_rs_derive v0.8.24
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[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 serde v1.0.117
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling cookie_store v0.12.0
[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 2m 01s
[INFO] running `Command { std: "docker" "inspect" "1870c63e6b118d12f59b32e62c0bb0b739fe3d2ecc482cf07f19bdbe0d5e6142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1870c63e6b118d12f59b32e62c0bb0b739fe3d2ecc482cf07f19bdbe0d5e6142", kill_on_drop: false }`
[INFO] [stdout] 1870c63e6b118d12f59b32e62c0bb0b739fe3d2ecc482cf07f19bdbe0d5e6142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ebf506d76157689109dc2cd589724db89f65ba9349ea9a96617acfaa1fd09a9
[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" "4ebf506d76157689109dc2cd589724db89f65ba9349ea9a96617acfaa1fd09a9", 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=46ada7baba4282e3 -C extra-filename=-46ada7baba4282e3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-f3ec148fd12597ac.rlib --extern couch_rs_derive=/opt/rustwide/target/debug/deps/libcouch_rs_derive-d5f337cb78690f8a.so --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-95c885a9ab8c0756.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-33c08a49b3590d33.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-832b57ffc3c1efcc.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1ae4ea7ceff7b696.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-26d9d708440c69e3.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" "4ebf506d76157689109dc2cd589724db89f65ba9349ea9a96617acfaa1fd09a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ebf506d76157689109dc2cd589724db89f65ba9349ea9a96617acfaa1fd09a9", kill_on_drop: false }`
[INFO] [stdout] 4ebf506d76157689109dc2cd589724db89f65ba9349ea9a96617acfaa1fd09a9