[INFO] cloning repository https://github.com/rand-chain/rust-randchain-prototype
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rand-chain/rust-randchain-prototype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2Frust-randchain-prototype", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2Frust-randchain-prototype'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed4116f433ddf702edd579a1504c328f53000652
[INFO] checking rand-chain/rust-randchain-prototype against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2Frust-randchain-prototype" "/workspace/builds/worker-112/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rand-chain/rust-randchain-prototype on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-112/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rand-chain/rust-randchain-prototype
[INFO] finished tweaking git repo https://github.com/rand-chain/rust-randchain-prototype
[INFO] tweaked toml for git repo https://github.com/rand-chain/rust-randchain-prototype written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/rand-chain/rust-randchain-prototype already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 relay v0.1.0
[INFO] [stderr]   Downloaded murmur3 v0.4.0
[INFO] [stderr]   Downloaded ns-dns-tokio v0.3.1
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded az v1.0.0
[INFO] [stderr]   Downloaded serde_derive v1.0.21
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.3
[INFO] [stderr]   Downloaded smallvec v0.2.1
[INFO] [stderr]   Downloaded mio v0.6.11
[INFO] [stderr]   Downloaded mime v0.3.5
[INFO] [stderr]   Downloaded tokio-proto v0.1.1
[INFO] [stderr]   Downloaded take v0.1.0
[INFO] [stderr]   Downloaded stable_deref_trait v1.0.0
[INFO] [stderr]   Downloaded serde_derive_internals v0.17.0
[INFO] [stderr]   Downloaded skeptic v0.4.0
[INFO] [stderr]   Downloaded chrono v0.4.0
[INFO] [stderr]   Downloaded wincolor v0.1.5
[INFO] [stderr]   Downloaded globset v0.1.4
[INFO] [stderr]   Downloaded abstract-ns v0.3.4
[INFO] [stderr]   Downloaded lru-cache v0.1.1
[INFO] [stderr]   Downloaded heapsize v0.4.1
[INFO] [stderr]   Downloaded unicase v2.1.0
[INFO] [stderr]   Downloaded hyper v0.11.7
[INFO] [stderr]   Downloaded env_logger v0.5.3
[INFO] [stderr]   Downloaded futures v0.1.17
[INFO] [stderr]   Downloaded csv v1.0.0
[INFO] [stderr]   Downloaded domain v0.2.2
[INFO] [stderr]   Downloaded linked-hash-map v0.4.2
[INFO] [stderr]   Downloaded rustc-hex v2.0.0
[INFO] [stderr]   Downloaded rug v1.11.0
[INFO] [stderr]   Downloaded siphasher v0.1.3
[INFO] [stderr]   Downloaded termcolor v0.3.3
[INFO] [stderr]   Downloaded parking_lot_core v0.2.6
[INFO] [stderr]   Downloaded elapsed v0.1.2
[INFO] [stderr]   Downloaded elastic-array v0.6.0
[INFO] [stderr]   Downloaded bigint v1.0.5
[INFO] [stderr]   Downloaded serde_json v1.0.6
[INFO] [stderr]   Downloaded display_derive v0.0.0
[INFO] [stderr]   Downloaded arrayvec v0.4.6
[INFO] [stderr]   Downloaded ecvrf v0.4.2
[INFO] [stderr]   Downloaded futures-cpupool v0.1.7
[INFO] [stderr]   Downloaded iovec v0.1.1
[INFO] [stderr]   Downloaded local-encoding v0.2.0
[INFO] [stderr]   Downloaded serde v1.0.21
[INFO] [stderr]   Downloaded tokio-core v0.1.10
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abfa5e2e291f8734da5b08783a58a13c4ff224a506655fcf9d937045c9cfc04a
[INFO] running `Command { std: "docker" "start" "-a" "abfa5e2e291f8734da5b08783a58a13c4ff224a506655fcf9d937045c9cfc04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abfa5e2e291f8734da5b08783a58a13c4ff224a506655fcf9d937045c9cfc04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfa5e2e291f8734da5b08783a58a13c4ff224a506655fcf9d937045c9cfc04a", kill_on_drop: false }`
[INFO] [stdout] abfa5e2e291f8734da5b08783a58a13c4ff224a506655fcf9d937045c9cfc04a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6bf6be6a65ed59c20075a6ede87dccae33e56216398b42e00430503e95dba1b
[INFO] running `Command { std: "docker" "start" "-a" "e6bf6be6a65ed59c20075a6ede87dccae33e56216398b42e00430503e95dba1b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling heapsize v0.3.9
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling heapsize v0.4.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.1
[INFO] [stderr]    Compiling rug v1.11.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking rustc-hex v2.0.0
[INFO] [stderr]     Checking az v1.0.0
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking siphasher v0.1.3
[INFO] [stderr]     Checking elapsed v0.1.2
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling getopts v0.2.17
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking serde v1.0.21
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]     Checking termcolor v0.3.3
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking xdg v2.1.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking assert_matches v1.4.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking arrayvec v0.4.6
[INFO] [stderr]     Checking typenum v1.12.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling bigint v1.0.5
[INFO] [stderr]     Checking sha2 v0.9.2
[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-1.0.21/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C panic=abort -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=f8273d28c67d2c24 -C extra-filename=-f8273d28c67d2c24 --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" "e6bf6be6a65ed59c20075a6ede87dccae33e56216398b42e00430503e95dba1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6bf6be6a65ed59c20075a6ede87dccae33e56216398b42e00430503e95dba1b", kill_on_drop: false }`
[INFO] [stdout] e6bf6be6a65ed59c20075a6ede87dccae33e56216398b42e00430503e95dba1b
