[INFO] cloning repository https://github.com/kamaleshpati/rust-POW
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamaleshpati/rust-POW" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamaleshpati%2Frust-POW", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamaleshpati%2Frust-POW'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff47482fbc70f6d13f81249711f6df361f3f326e
[INFO] building kamaleshpati/rust-POW against master#9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19 for pr-117684
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamaleshpati%2Frust-POW" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kamaleshpati/rust-POW on toolchain 9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kamaleshpati/rust-POW
[INFO] finished tweaking git repo https://github.com/kamaleshpati/rust-POW
[INFO] tweaked toml for git repo https://github.com/kamaleshpati/rust-POW written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kamaleshpati/rust-POW already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] building kamaleshpati/rust-POW against try#53e03135c36e913ff664ce8329041b7e3c2fd358 for pr-117684
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamaleshpati%2Frust-POW" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kamaleshpati/rust-POW on toolchain 53e03135c36e913ff664ce8329041b7e3c2fd358
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kamaleshpati/rust-POW
[INFO] finished tweaking git repo https://github.com/kamaleshpati/rust-POW
[INFO] tweaked toml for git repo https://github.com/kamaleshpati/rust-POW written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kamaleshpati/rust-POW already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "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 serial_test v0.7.0
[INFO] [stderr]   Downloaded serial_test_derive v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14bf435cba6d3ac60b5dd5ce3e71556f70de49d827ec35e34c04ad9528995958
[INFO] running `Command { std: "docker" "start" "-a" "14bf435cba6d3ac60b5dd5ce3e71556f70de49d827ec35e34c04ad9528995958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14bf435cba6d3ac60b5dd5ce3e71556f70de49d827ec35e34c04ad9528995958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14bf435cba6d3ac60b5dd5ce3e71556f70de49d827ec35e34c04ad9528995958", kill_on_drop: false }`
[INFO] [stdout] 14bf435cba6d3ac60b5dd5ce3e71556f70de49d827ec35e34c04ad9528995958
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 280d7a0b91f58f22925bea3e4a540ff9249caec583664637b028efd518d3f479
[INFO] running `Command { std: "docker" "start" "-a" "280d7a0b91f58f22925bea3e4a540ff9249caec583664637b028efd518d3f479", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling once_cell v1.12.0
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[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-sink v0.3.21
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[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling openssl-sys v0.9.68
[INFO] [stderr]    Compiling libz-sys v1.1.3
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[INFO] [stderr]    Compiling tokio v1.16.1
[INFO] [stderr]    Compiling zstd-sys v2.0.1+zstd.1.5.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling curl-sys v0.4.55+curl-7.83.1
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[INFO] [stderr]    Compiling adler v1.0.2
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[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cache-padded v1.1.1
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[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling byte-slice-cast v1.2.1
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling digest v0.10.3
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[INFO] [stderr]    Compiling impl-rlp v0.3.0
[INFO] [stderr]    Compiling actix-service v2.0.2
[INFO] [stderr]    Compiling actix-utils v3.0.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling cookie v0.16.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling curl v0.4.39
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling sha1 v0.10.1
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling actix-router v0.5.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling uint v0.9.3
[INFO] [stderr]    Compiling brotli v3.3.4
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.8.4
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling isahc v1.7.2
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling language-tags v0.3.2
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling actix-rt v2.7.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling sluice v0.5.5
[INFO] [stderr]    Compiling time v0.3.11
[INFO] [stderr]    Compiling nix v0.24.1
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling castaway v0.1.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling ctrlc v3.2.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling actix-web-codegen v4.0.1
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling tracing v0.1.35
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling actix-macros v0.2.3
[INFO] [stderr]    Compiling tokio-util v0.7.2
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.1.3
[INFO] [stderr]    Compiling dotenv_codegen_implementation v0.15.0
[INFO] [stderr]    Compiling dotenv_codegen v0.15.0
[INFO] [stderr]    Compiling actix-codec v0.5.0
[INFO] [stderr]    Compiling local-channel v0.1.3
[INFO] [stderr]    Compiling h2 v0.3.13
[INFO] [stderr]    Compiling actix-server v2.1.1
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling parity-scale-codec v3.1.5
[INFO] [stderr]    Compiling impl-serde v0.3.2
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling ethbloom v0.12.1
[INFO] [stderr]    Compiling impl-codec v0.6.0
[INFO] [stderr]    Compiling primitive-types v0.11.1
[INFO] [stderr]    Compiling ethereum-types v0.13.1
[INFO] [stderr]    Compiling zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]    Compiling actix-http v3.1.0
[INFO] [stderr]    Compiling actix-web v4.1.0
[INFO] [stderr]    Compiling rust_blockchain v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BlockchainError`
[INFO] [stdout]   --> src/model.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use blockchain::{Blockchain, BlockchainError, BLOCK_SUBSIDY};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.76s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "280d7a0b91f58f22925bea3e4a540ff9249caec583664637b028efd518d3f479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "280d7a0b91f58f22925bea3e4a540ff9249caec583664637b028efd518d3f479", kill_on_drop: false }`
[INFO] [stdout] 280d7a0b91f58f22925bea3e4a540ff9249caec583664637b028efd518d3f479
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8caf73dd3e993103b8727c28c348d87079d0f8f9f05ba08f9a56c0c26074aea
[INFO] running `Command { std: "docker" "start" "-a" "a8caf73dd3e993103b8727c28c348d87079d0f8f9f05ba08f9a56c0c26074aea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling rustversion v1.0.7
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling cargo-husky v1.5.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling termtree v0.2.3
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling predicates-tree v1.0.4
[INFO] [stderr]    Compiling nix v0.24.1
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling serial_test_derive v0.7.0
[INFO] [stderr]    Compiling serial_test v0.7.0
[INFO] [stderr]    Compiling predicates v2.0.3
[INFO] [stderr]    Compiling assert_cmd v2.0.4
[INFO] [stderr]    Compiling ctrlc v3.2.2
[INFO] [stderr]    Compiling rust_blockchain v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BlockchainError`
[INFO] [stdout]   --> src/model.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use blockchain::{Blockchain, BlockchainError, BLOCK_SUBSIDY};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlockchainError`
[INFO] [stdout]   --> src/model.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use blockchain::{Blockchain, BlockchainError, BLOCK_SUBSIDY};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.69s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "a8caf73dd3e993103b8727c28c348d87079d0f8f9f05ba08f9a56c0c26074aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8caf73dd3e993103b8727c28c348d87079d0f8f9f05ba08f9a56c0c26074aea", kill_on_drop: false }`
[INFO] [stdout] a8caf73dd3e993103b8727c28c348d87079d0f8f9f05ba08f9a56c0c26074aea