[INFO] cloning repository https://github.com/siexp/blockchain_emulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/siexp/blockchain_emulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiexp%2Fblockchain_emulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiexp%2Fblockchain_emulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0440b5fcb18cfdc1fa56c3090c1aa6fa57cf6de8
[INFO] checking siexp/blockchain_emulation against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiexp%2Fblockchain_emulation" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/siexp/blockchain_emulation
[INFO] finished tweaking git repo https://github.com/siexp/blockchain_emulation
[INFO] tweaked toml for git repo https://github.com/siexp/blockchain_emulation written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/siexp/blockchain_emulation on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/siexp/blockchain_emulation 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 915ec5ff5ecb4dd3d494452afa8a73bd1121e930b0a4b81e7589e44d31ca7004
[INFO] running `Command { std: "docker" "start" "-a" "915ec5ff5ecb4dd3d494452afa8a73bd1121e930b0a4b81e7589e44d31ca7004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "915ec5ff5ecb4dd3d494452afa8a73bd1121e930b0a4b81e7589e44d31ca7004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915ec5ff5ecb4dd3d494452afa8a73bd1121e930b0a4b81e7589e44d31ca7004", kill_on_drop: false }`
[INFO] [stdout] 915ec5ff5ecb4dd3d494452afa8a73bd1121e930b0a4b81e7589e44d31ca7004
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f642f8d79c547dc110ad2f1cd079536df9be26e2bdfebb72d025e254329f8e
[INFO] running `Command { std: "docker" "start" "-a" "15f642f8d79c547dc110ad2f1cd079536df9be26e2bdfebb72d025e254329f8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking sha256 v1.0.3
[INFO] [stderr]     Checking blockchain_emulation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `mint_timestamp` and `nonce` are never read
[INFO] [stdout]  --> src/block.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Header {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 5 |     pub mint_timestamp: u64,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |
[INFO] [stdout] 7 |     pub nonce: u128,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Header` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mint_timestamp` and `nonce` are never read
[INFO] [stdout]  --> src/block.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Header {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 5 |     pub mint_timestamp: u64,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |
[INFO] [stdout] 7 |     pub nonce: u128,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Header` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "15f642f8d79c547dc110ad2f1cd079536df9be26e2bdfebb72d025e254329f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f642f8d79c547dc110ad2f1cd079536df9be26e2bdfebb72d025e254329f8e", kill_on_drop: false }`
[INFO] [stdout] 15f642f8d79c547dc110ad2f1cd079536df9be26e2bdfebb72d025e254329f8e