[INFO] fetching crate peepmatic-souper 0.73.0...
[INFO] checking peepmatic-souper-0.73.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate peepmatic-souper 0.73.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate peepmatic-souper 0.73.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peepmatic-souper 0.73.0
[INFO] finished tweaking crates.io crate peepmatic-souper 0.73.0
[INFO] tweaked toml for crates.io crate peepmatic-souper 0.73.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded z3 v0.7.1
[INFO] [stderr]   Downloaded peepmatic-macro v0.73.1
[INFO] [stderr]   Downloaded peepmatic-runtime v0.73.1
[INFO] [stderr]   Downloaded peepmatic v0.73.1
[INFO] [stderr]   Downloaded souper-ir v2.1.0
[INFO] [stderr]   Downloaded z3-sys v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", 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] 232903ebb6c737ce2cebf97b690f7f6189798514068e834f48618c134350b22e
[INFO] running `Command { std: "docker" "start" "-a" "232903ebb6c737ce2cebf97b690f7f6189798514068e834f48618c134350b22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "232903ebb6c737ce2cebf97b690f7f6189798514068e834f48618c134350b22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232903ebb6c737ce2cebf97b690f7f6189798514068e834f48618c134350b22e", kill_on_drop: false }`
[INFO] [stdout] 232903ebb6c737ce2cebf97b690f7f6189798514068e834f48618c134350b22e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42f4b69b526938d2c724d2fe85f268e2d9c8f41602fcf4380ce97c319fd4a31f
[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" "42f4b69b526938d2c724d2fe85f268e2d9c8f41602fcf4380ce97c319fd4a31f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking peepmatic-traits v0.73.1
[INFO] [stderr]     Checking bumpalo v3.6.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]     Checking souper-ir v2.1.0
[INFO] [stderr]     Checking wast v35.0.2
[INFO] [stderr]    Compiling z3-sys v0.6.3
[INFO] [stderr]     Checking peepmatic-souper v0.73.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling peepmatic-macro v0.73.1
[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-1.0.126/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=15cbe8588bc78bc7 -C extra-filename=-15cbe8588bc78bc7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-223cc1bf4c7d615f.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-9c9c6fb7ecc8d1ce.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-b9c766fb4726efde.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid --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" "42f4b69b526938d2c724d2fe85f268e2d9c8f41602fcf4380ce97c319fd4a31f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f4b69b526938d2c724d2fe85f268e2d9c8f41602fcf4380ce97c319fd4a31f", kill_on_drop: false }`
[INFO] [stdout] 42f4b69b526938d2c724d2fe85f268e2d9c8f41602fcf4380ce97c319fd4a31f