[INFO] cloning repository https://github.com/PEshwar/rust_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PEshwar/rust_blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPEshwar%2Frust_blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPEshwar%2Frust_blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f75bb377d4e013a85e312714cc457ff36097e5b
[INFO] testing PEshwar/rust_blockchain against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPEshwar%2Frust_blockchain" "/workspace/builds/worker-52/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-52/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PEshwar/rust_blockchain on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PEshwar/rust_blockchain
[INFO] finished tweaking git repo https://github.com/PEshwar/rust_blockchain
[INFO] tweaked toml for git repo https://github.com/PEshwar/rust_blockchain written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate git repo https://github.com/PEshwar/rust_blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/libp2p/rust-libp2p`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unsigned-varint v0.2.2
[INFO] [stderr]   Downloaded quick-error v0.1.4
[INFO] [stderr]   Downloaded bs58 v0.2.2
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.49
[INFO] [stderr]   Downloaded blake2 v0.8.0
[INFO] [stderr]   Downloaded webpki-roots v0.16.0
[INFO] [stderr]   Downloaded ctr v0.3.2
[INFO] [stderr]   Downloaded webpki v0.19.1
[INFO] [stderr]   Downloaded sct v0.5.0
[INFO] [stderr]   Downloaded zeroize_derive v0.9.3
[INFO] [stderr]   Downloaded nohash-hasher v0.1.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.49
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.49
[INFO] [stderr]   Downloaded wasm-timer v0.1.2
[INFO] [stderr]   Downloaded tokio-rustls v0.10.0-alpha.4
[INFO] [stderr]   Downloaded serde v1.0.98
[INFO] [stderr]   Downloaded quote v1.0.0
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.49
[INFO] [stderr]   Downloaded yamux v0.2.1
[INFO] [stderr]   Downloaded ipnet v2.0.0
[INFO] [stderr]   Downloaded web-sys v0.3.26
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.49
[INFO] [stderr]   Downloaded js-sys v0.3.26
[INFO] [stderr]   Downloaded serde_derive v1.0.98
[INFO] [stderr]   Downloaded stream-cipher v0.3.0
[INFO] [stderr]   Downloaded tokio-dns-unofficial v0.4.0
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.0-pre.1
[INFO] [stderr]   Downloaded asn1_der_derive v0.1.1
[INFO] [stderr]   Downloaded twofish v0.2.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.0
[INFO] [stderr]   Downloaded protobuf v2.8.0
[INFO] [stderr]   Downloaded x25519-dalek v0.5.2
[INFO] [stderr]   Downloaded curve25519-dalek v1.2.3
[INFO] [stderr]   Downloaded spin v0.5.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.49
[INFO] [stderr]   Downloaded rustls v0.15.2
[INFO] [stderr]   Downloaded static_slice v0.0.3
[INFO] [stderr]   Downloaded snow v0.5.2
[INFO] [stderr]   Downloaded aio-limited v0.1.0
[INFO] [stderr]   Downloaded uint v0.8.1
[INFO] [stderr]   Downloaded aes-ctr v0.3.0
[INFO] [stderr]   Downloaded asn1_der v0.6.2
[INFO] [stderr]   Downloaded ring v0.14.6
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.26
[INFO] [stderr]   Downloaded soketto v0.2.2
[INFO] [stderr]   Downloaded syn v1.0.1
[INFO] [stderr]   Downloaded tokio-stdin-stdout v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 864edd5934c311f335926c2fc7c669d3830163ae8f97e3148b48691065e9311b
[INFO] running `Command { std: "docker" "start" "-a" "864edd5934c311f335926c2fc7c669d3830163ae8f97e3148b48691065e9311b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "864edd5934c311f335926c2fc7c669d3830163ae8f97e3148b48691065e9311b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "864edd5934c311f335926c2fc7c669d3830163ae8f97e3148b48691065e9311b", kill_on_drop: false }`
[INFO] [stdout] 864edd5934c311f335926c2fc7c669d3830163ae8f97e3148b48691065e9311b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76dde260486850fe19a4931db430d67558d481e25baaaa26941f717452eeec95
[INFO] running `Command { std: "docker" "start" "-a" "76dde260486850fe19a4931db430d67558d481e25baaaa26941f717452eeec95", 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]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling futures v0.1.28
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling spin v0.5.1
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling subtle v2.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling protobuf v2.8.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling bs58 v0.2.2
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.49
[INFO] [stderr]    Compiling syn v1.0.1
[INFO] [stderr]    Compiling bumpalo v2.5.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.49
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling static_slice v0.0.3
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling c_linked_list v1.1.1
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling nohash-hasher v0.1.1
[INFO] [stderr]    Compiling quick-error v0.1.4
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling rustc-hex v2.0.1
[INFO] [stderr]    Compiling ipnet v2.0.0
[INFO] [stderr]    Compiling parity-send-wrapper v0.1.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr] error: could not compile `semver-parser`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name semver_parser /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/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 -C metadata=8fcb85df1b1460b9 -C extra-filename=-8fcb85df1b1460b9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "76dde260486850fe19a4931db430d67558d481e25baaaa26941f717452eeec95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76dde260486850fe19a4931db430d67558d481e25baaaa26941f717452eeec95", kill_on_drop: false }`
[INFO] [stdout] 76dde260486850fe19a4931db430d67558d481e25baaaa26941f717452eeec95