[INFO] fetching crate twasmi 0.6.2...
[INFO] testing twasmi-0.6.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate twasmi 0.6.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate twasmi 0.6.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking crates.io crate twasmi 0.6.2
[INFO] finished tweaking crates.io crate twasmi 0.6.2
[INFO] tweaked toml for crates.io crate twasmi 0.6.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate twasmi 0.6.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39985242d9470284b37e22714afffc82b8eb65c1059b81683cde01504fbcdd03
[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" "39985242d9470284b37e22714afffc82b8eb65c1059b81683cde01504fbcdd03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39985242d9470284b37e22714afffc82b8eb65c1059b81683cde01504fbcdd03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39985242d9470284b37e22714afffc82b8eb65c1059b81683cde01504fbcdd03", kill_on_drop: false }`
[INFO] [stdout] 39985242d9470284b37e22714afffc82b8eb65c1059b81683cde01504fbcdd03
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50945f2810cee0a3abc8bacb3e1de8e7c7e0c15942f0e78fc6c388059d28e708
[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" "50945f2810cee0a3abc8bacb3e1de8e7c7e0c15942f0e78fc6c388059d28e708", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling tetsy-wasm v0.41.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling twasmi-validation v0.3.0
[INFO] [stderr]    Compiling twasmi v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.95s
[INFO] running `Command { std: "docker" "inspect" "50945f2810cee0a3abc8bacb3e1de8e7c7e0c15942f0e78fc6c388059d28e708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50945f2810cee0a3abc8bacb3e1de8e7c7e0c15942f0e78fc6c388059d28e708", kill_on_drop: false }`
[INFO] [stdout] 50945f2810cee0a3abc8bacb3e1de8e7c7e0c15942f0e78fc6c388059d28e708
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "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] 4a75398f337783fd5671f3cef4d5b3c2d2565d78ee36cc0cf3747ede1f41b4ea
[INFO] running `Command { std: "docker" "start" "-a" "4a75398f337783fd5671f3cef4d5b3c2d2565d78ee36cc0cf3747ede1f41b4ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling wabt-sys v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.123/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=4e6be6e97e18b026 -C extra-filename=-4e6be6e97e18b026 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-755220030b6adeba.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-6e57b1cb19197bbb.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-cd29f7126b794f18.rlib --extern proc_macro --cap-lints allow --cap-lints=warn --cfg underscore_consts` (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" "4a75398f337783fd5671f3cef4d5b3c2d2565d78ee36cc0cf3747ede1f41b4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a75398f337783fd5671f3cef4d5b3c2d2565d78ee36cc0cf3747ede1f41b4ea", kill_on_drop: false }`
[INFO] [stdout] 4a75398f337783fd5671f3cef4d5b3c2d2565d78ee36cc0cf3747ede1f41b4ea