[INFO] cloning repository https://github.com/mohitkr827/rustyblocc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mohitkr827/rustyblocc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohitkr827%2Frustyblocc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohitkr827%2Frustyblocc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de5ed2eda332270bff1d3ed6ac8836eeb7f4841b
[INFO] checking mohitkr827/rustyblocc against master#b2728d5426bab1d8c39709768c7e22b7f66dde5d for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohitkr827%2Frustyblocc" "/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/mohitkr827/rustyblocc on toolchain b2728d5426bab1d8c39709768c7e22b7f66dde5d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mohitkr827/rustyblocc
[INFO] finished tweaking git repo https://github.com/mohitkr827/rustyblocc
[INFO] tweaked toml for git repo https://github.com/mohitkr827/rustyblocc written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mohitkr827/rustyblocc 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" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 930458bafdd4c0af9ad81f6bcd346d41a00b9e33873fc619957222fceedcd8f3
[INFO] running `Command { std: "docker" "start" "-a" "930458bafdd4c0af9ad81f6bcd346d41a00b9e33873fc619957222fceedcd8f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "930458bafdd4c0af9ad81f6bcd346d41a00b9e33873fc619957222fceedcd8f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "930458bafdd4c0af9ad81f6bcd346d41a00b9e33873fc619957222fceedcd8f3", kill_on_drop: false }`
[INFO] [stdout] 930458bafdd4c0af9ad81f6bcd346d41a00b9e33873fc619957222fceedcd8f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 564d8a403174d23ca5080d70470fdcb217278de1a111d779b09560371794df2f
[INFO] running `Command { std: "docker" "start" "-a" "564d8a403174d23ca5080d70470fdcb217278de1a111d779b09560371794df2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling serde_derive v1.0.214
[INFO] [stderr]     Checking rustyblocc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `difficulty` is never read
[INFO] [stdout]  --> src/blockchain/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Blockchain {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     pub chain: Vec<Block>,
[INFO] [stdout] 6 |     pub difficulty: usize,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `difficulty` is never read
[INFO] [stdout]  --> src/blockchain/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Blockchain {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     pub chain: Vec<Block>,
[INFO] [stdout] 6 |     pub difficulty: usize,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "564d8a403174d23ca5080d70470fdcb217278de1a111d779b09560371794df2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564d8a403174d23ca5080d70470fdcb217278de1a111d779b09560371794df2f", kill_on_drop: false }`
[INFO] [stdout] 564d8a403174d23ca5080d70470fdcb217278de1a111d779b09560371794df2f