[INFO] cloning repository https://github.com/terakun/lambda-slackbot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/terakun/lambda-slackbot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Flambda-slackbot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Flambda-slackbot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03e8fddd96a1cd31a4960bdc523dc336e11730ec
[INFO] testing terakun/lambda-slackbot against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Flambda-slackbot" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/terakun/lambda-slackbot on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/terakun/lambda-slackbot
[INFO] finished tweaking git repo https://github.com/terakun/lambda-slackbot
[INFO] tweaked toml for git repo https://github.com/terakun/lambda-slackbot written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/terakun/lambda-slackbot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea76ad313a8e180a11603568357d11e2fbb945e531cd6b601f727aa6966eb6c6
[INFO] running `Command { std: "docker" "start" "-a" "ea76ad313a8e180a11603568357d11e2fbb945e531cd6b601f727aa6966eb6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea76ad313a8e180a11603568357d11e2fbb945e531cd6b601f727aa6966eb6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea76ad313a8e180a11603568357d11e2fbb945e531cd6b601f727aa6966eb6c6", kill_on_drop: false }`
[INFO] [stdout] ea76ad313a8e180a11603568357d11e2fbb945e531cd6b601f727aa6966eb6c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f107e4c680dc37a1327368a97df79a468bf30ebbb5e8c9b08a0ae0b0d043b6d9
[INFO] running `Command { std: "docker" "start" "-a" "f107e4c680dc37a1327368a97df79a468bf30ebbb5e8c9b08a0ae0b0d043b6d9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.53
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling utf-8 v0.7.2
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.53/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=48894ddd6f6bc2b5 -C extra-filename=-48894ddd6f6bc2b5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --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" "f107e4c680dc37a1327368a97df79a468bf30ebbb5e8c9b08a0ae0b0d043b6d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f107e4c680dc37a1327368a97df79a468bf30ebbb5e8c9b08a0ae0b0d043b6d9", kill_on_drop: false }`
[INFO] [stdout] f107e4c680dc37a1327368a97df79a468bf30ebbb5e8c9b08a0ae0b0d043b6d9