[INFO] fetching crate serde-generate 0.17.0...
[INFO] testing serde-generate-0.17.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate serde-generate 0.17.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate serde-generate 0.17.0 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 serde-generate 0.17.0
[INFO] finished tweaking crates.io crate serde-generate 0.17.0
[INFO] tweaked toml for crates.io crate serde-generate 0.17.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate serde-generate 0.17.0 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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1bccbc20cffecca791ae385d2e2480734b3cf87fb4de7a6834a8774e919869c
[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" "e1bccbc20cffecca791ae385d2e2480734b3cf87fb4de7a6834a8774e919869c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1bccbc20cffecca791ae385d2e2480734b3cf87fb4de7a6834a8774e919869c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1bccbc20cffecca791ae385d2e2480734b3cf87fb4de7a6834a8774e919869c", kill_on_drop: false }`
[INFO] [stdout] e1bccbc20cffecca791ae385d2e2480734b3cf87fb4de7a6834a8774e919869c
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0cd7c84b306a37e0de8b917bcd3f7659be81a5183e7b89d6d14990fd55e4bb5
[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" "d0cd7c84b306a37e0de8b917bcd3f7659be81a5183e7b89d6d14990fd55e4bb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling include_dir_impl v0.6.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling include_dir v0.6.0
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling bcs v0.1.1
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling serde-reflection v0.3.2
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]    Compiling serde-generate v0.17.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.25s
[INFO] running `Command { std: "docker" "inspect" "d0cd7c84b306a37e0de8b917bcd3f7659be81a5183e7b89d6d14990fd55e4bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0cd7c84b306a37e0de8b917bcd3f7659be81a5183e7b89d6d14990fd55e4bb5", kill_on_drop: false }`
[INFO] [stdout] d0cd7c84b306a37e0de8b917bcd3f7659be81a5183e7b89d6d14990fd55e4bb5
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] 1eb3833ca22754a64048cf0ab8e5fb30efb33d5eb0164fe1251cd1783703230b
[INFO] running `Command { std: "docker" "start" "-a" "1eb3833ca22754a64048cf0ab8e5fb30efb33d5eb0164fe1251cd1783703230b", kill_on_drop: false }`
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling serde-generate v0.17.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `serde-generate`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_generate --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=389b00dfae44d3ed -C extra-filename=-389b00dfae44d3ed --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bcs=/opt/rustwide/target/debug/deps/libbcs-135537ea06c15950.rlib --extern bincode=/opt/rustwide/target/debug/deps/libbincode-021395580840824a.rlib --extern heck=/opt/rustwide/target/debug/deps/libheck-6233bf606d59a558.rlib --extern hex=/opt/rustwide/target/debug/deps/libhex-8a54554534812d95.rlib --extern include_dir=/opt/rustwide/target/debug/deps/libinclude_dir-0021f94bb835605c.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rlib --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-a011c700aac1c3f1.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-c13914df81e11694.rlib --extern serde_reflection=/opt/rustwide/target/debug/deps/libserde_reflection-ed75737d58e39ea9.rlib --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-9f54458833adbf84.rlib --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-59305529a7582425.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-fdf8428690195c47.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-1298c99af7db22b2.rlib --extern textwrap=/opt/rustwide/target/debug/deps/libtextwrap-95cb0adfa062ca49.rlib --extern which=/opt/rustwide/target/debug/deps/libwhich-b79cdf7212d68ae9.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" "1eb3833ca22754a64048cf0ab8e5fb30efb33d5eb0164fe1251cd1783703230b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb3833ca22754a64048cf0ab8e5fb30efb33d5eb0164fe1251cd1783703230b", kill_on_drop: false }`
[INFO] [stdout] 1eb3833ca22754a64048cf0ab8e5fb30efb33d5eb0164fe1251cd1783703230b