[INFO] cloning repository https://github.com/volodymyrd/blockchain-v1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/volodymyrd/blockchain-v1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolodymyrd%2Fblockchain-v1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolodymyrd%2Fblockchain-v1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87c9619d07d0244eac0c8635cf0ff37390271f3d
[INFO] checking volodymyrd/blockchain-v1 against master#03eb45452305f2d52348279d0caa5fc1f12c438d for pr-138176
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolodymyrd%2Fblockchain-v1" "/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/volodymyrd/blockchain-v1 on toolchain 03eb45452305f2d52348279d0caa5fc1f12c438d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/volodymyrd/blockchain-v1
[INFO] finished tweaking git repo https://github.com/volodymyrd/blockchain-v1
[INFO] tweaked toml for git repo https://github.com/volodymyrd/blockchain-v1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/volodymyrd/blockchain-v1 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" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.80
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d87e5642a5180e3f023e752bce1b6325960f29a3a44b6017e806fcbb58aa703
[INFO] running `Command { std: "docker" "start" "-a" "6d87e5642a5180e3f023e752bce1b6325960f29a3a44b6017e806fcbb58aa703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d87e5642a5180e3f023e752bce1b6325960f29a3a44b6017e806fcbb58aa703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d87e5642a5180e3f023e752bce1b6325960f29a3a44b6017e806fcbb58aa703", kill_on_drop: false }`
[INFO] [stdout] 6d87e5642a5180e3f023e752bce1b6325960f29a3a44b6017e806fcbb58aa703
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f47a4ae48b871db2638880502c3fe48e6f8110e70056f6b0d8ada5d2005c3d84
[INFO] running `Command { std: "docker" "start" "-a" "f47a4ae48b871db2638880502c3fe48e6f8110e70056f6b0d8ada5d2005c3d84", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.88
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.80
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking chain-model v0.0.0 (/opt/rustwide/workdir/chain-model)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> chain-model/src/block.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chain-core v0.0.0 (/opt/rustwide/workdir/chain-core)
[INFO] [stdout] warning: constant `MAX_TIMER_ITERS` is never used
[INFO] [stdout]  --> chain-core/src/doomslug.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAX_TIMER_ITERS: usize = 20;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DoomslugTimer` is never constructed
[INFO] [stdout]   --> chain-core/src/doomslug.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct DoomslugTimer {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_delay` is never used
[INFO] [stdout]   --> chain-core/src/doomslug.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl DoomslugTimer {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn get_delay(&self, n: BlockHeightDelta) -> Duration {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DoomslugTip` is never constructed
[INFO] [stdout]   --> chain-core/src/doomslug.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct DoomslugTip {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Doomslug` is never constructed
[INFO] [stdout]   --> chain-core/src/doomslug.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Doomslug {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_tip`, `create_approval`, and `process_timer` are never used
[INFO] [stdout]    --> chain-core/src/doomslug.rs:59:8
[INFO] [stdout]     |
[INFO] [stdout] 58  | impl Doomslug {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 59  |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     pub fn set_tip(
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn create_approval(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn process_timer(&mut self) -> Vec<Approval> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.00s
[INFO] running `Command { std: "docker" "inspect" "f47a4ae48b871db2638880502c3fe48e6f8110e70056f6b0d8ada5d2005c3d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f47a4ae48b871db2638880502c3fe48e6f8110e70056f6b0d8ada5d2005c3d84", kill_on_drop: false }`
[INFO] [stdout] f47a4ae48b871db2638880502c3fe48e6f8110e70056f6b0d8ada5d2005c3d84