[INFO] cloning repository https://github.com/davlum/raft-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davlum/raft-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavlum%2Fraft-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavlum%2Fraft-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2764fdc81830e887cc4baf40db66e1f8df3450ff
[INFO] checking davlum/raft-rs against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavlum%2Fraft-rs" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davlum/raft-rs on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davlum/raft-rs
[INFO] finished tweaking git repo https://github.com/davlum/raft-rs
[INFO] tweaked toml for git repo https://github.com/davlum/raft-rs written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate git repo https://github.com/davlum/raft-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded db-key v0.0.5
[INFO] [stderr]   Downloaded leveldb v0.8.6
[INFO] [stderr]   Downloaded leveldb-sys v2.0.8
[INFO] [stderr]   Downloaded commitlog v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c9e2bbd74ff245729cd48787eec29fc7ebba5573c4f340b09d4f68b2767f108
[INFO] running `Command { std: "docker" "start" "-a" "9c9e2bbd74ff245729cd48787eec29fc7ebba5573c4f340b09d4f68b2767f108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c9e2bbd74ff245729cd48787eec29fc7ebba5573c4f340b09d4f68b2767f108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c9e2bbd74ff245729cd48787eec29fc7ebba5573c4f340b09d4f68b2767f108", kill_on_drop: false }`
[INFO] [stdout] 9c9e2bbd74ff245729cd48787eec29fc7ebba5573c4f340b09d4f68b2767f108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4aacea71cf35cd0124684e2aaac0e2f5dae1a95e83832026ecc8684fbb226fc
[INFO] running `Command { std: "docker" "start" "-a" "b4aacea71cf35cd0124684e2aaac0e2f5dae1a95e83832026ecc8684fbb226fc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crc32c v0.6.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking commitlog v0.1.3
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling leveldb-sys v2.0.8
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[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-1.0.123/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=dab2643fd9ec7d71 -C extra-filename=-dab2643fd9ec7d71 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bdda1acf150366a4.so --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg serde_derive --cfg core_try_from --cfg num_nonzero_signed --cfg std_atomic64 --cfg std_atomic` (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" "b4aacea71cf35cd0124684e2aaac0e2f5dae1a95e83832026ecc8684fbb226fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4aacea71cf35cd0124684e2aaac0e2f5dae1a95e83832026ecc8684fbb226fc", kill_on_drop: false }`
[INFO] [stdout] b4aacea71cf35cd0124684e2aaac0e2f5dae1a95e83832026ecc8684fbb226fc