[INFO] cloning repository https://github.com/TyOverby/wasm-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TyOverby/wasm-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTyOverby%2Fwasm-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTyOverby%2Fwasm-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b69c524578df918345df161142c1eceff9fc492
[INFO] checking TyOverby/wasm-playground against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTyOverby%2Fwasm-playground" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TyOverby/wasm-playground on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TyOverby/wasm-playground
[INFO] finished tweaking git repo https://github.com/TyOverby/wasm-playground
[INFO] tweaked toml for git repo https://github.com/TyOverby/wasm-playground written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/TyOverby/wasm-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.6.3
[INFO] [stderr]   Downloaded serde_derive v1.0.66
[INFO] [stderr]   Downloaded proc-macro2 v0.4.6
[INFO] [stderr]   Downloaded serde_json v1.0.20
[INFO] [stderr]   Downloaded nan-preserving-float v0.1.0
[INFO] [stderr]   Downloaded parity-wasm v0.27.6
[INFO] [stderr]   Downloaded parity-wasm v0.31.0
[INFO] [stderr]   Downloaded wasmi v0.2.0
[INFO] [stderr]   Downloaded stable_deref_trait v1.1.0
[INFO] [stderr]   Downloaded smallvec v0.6.2
[INFO] [stderr]   Downloaded wabt v0.3.0
[INFO] [stderr]   Downloaded serde v1.0.66
[INFO] [stderr]   Downloaded syn v0.14.2
[INFO] [stderr]   Downloaded wabt-sys v0.1.4
[INFO] [stderr]   Downloaded cmake v0.1.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82912c747b8776c00ddea6703b7b451881594d2a4b42f9984090ff21cfb9efdb
[INFO] running `Command { std: "docker" "start" "-a" "82912c747b8776c00ddea6703b7b451881594d2a4b42f9984090ff21cfb9efdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82912c747b8776c00ddea6703b7b451881594d2a4b42f9984090ff21cfb9efdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82912c747b8776c00ddea6703b7b451881594d2a4b42f9984090ff21cfb9efdb", kill_on_drop: false }`
[INFO] [stdout] 82912c747b8776c00ddea6703b7b451881594d2a4b42f9984090ff21cfb9efdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0df6ae3c17bccba990e6bcf4b7ad3df23fa05d711c57bca68e99b31a72cc5aec
[INFO] running `Command { std: "docker" "start" "-a" "0df6ae3c17bccba990e6bcf4b7ad3df23fa05d711c57bca68e99b31a72cc5aec", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking smallvec v0.6.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking nan-preserving-float v0.1.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]     Checking parity-wasm v0.31.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]    Compiling wabt-sys v0.1.4
[INFO] [stderr]     Checking parity-wasm v0.27.6
[INFO] [stderr]     Checking wasmi v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking serde_json v1.0.20
[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-1.0.66/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=df8fc5ab1366c37f -C extra-filename=-df8fc5ab1366c37f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d028129d27de9e21.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-f157918b80251357.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-0a1d91bb4b6bc90d.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (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" "0df6ae3c17bccba990e6bcf4b7ad3df23fa05d711c57bca68e99b31a72cc5aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df6ae3c17bccba990e6bcf4b7ad3df23fa05d711c57bca68e99b31a72cc5aec", kill_on_drop: false }`
[INFO] [stdout] 0df6ae3c17bccba990e6bcf4b7ad3df23fa05d711c57bca68e99b31a72cc5aec