[INFO] cloning repository https://github.com/101t/blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/101t/blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F101t%2Fblockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F101t%2Fblockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cda762455e631e972b593b88e4b0f85e420a04ab
[INFO] checking 101t/blockchain against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F101t%2Fblockchain" "/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/101t/blockchain on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/101t/blockchain
[INFO] finished tweaking git repo https://github.com/101t/blockchain
[INFO] tweaked toml for git repo https://github.com/101t/blockchain written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/101t/blockchain 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.79
[INFO] [stderr]   Downloaded syn v2.0.55
[INFO] [stderr]   Downloaded time v0.3.34
[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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea0fa5b2477cd8aa3f0e91589b0ce9484a0d1b59511e31c6e9d7df75c2dae164
[INFO] running `Command { std: "docker" "start" "-a" "ea0fa5b2477cd8aa3f0e91589b0ce9484a0d1b59511e31c6e9d7df75c2dae164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea0fa5b2477cd8aa3f0e91589b0ce9484a0d1b59511e31c6e9d7df75c2dae164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0fa5b2477cd8aa3f0e91589b0ce9484a0d1b59511e31c6e9d7df75c2dae164", kill_on_drop: false }`
[INFO] [stdout] ea0fa5b2477cd8aa3f0e91589b0ce9484a0d1b59511e31c6e9d7df75c2dae164
[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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6aae87ed5283eee2d425c18d28188a4db2d0c8dc14bde2c967a6f27fe3a50c86
[INFO] running `Command { std: "docker" "start" "-a" "6aae87ed5283eee2d425c18d28188a4db2d0c8dc14bde2c967a6f27fe3a50c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.55
[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 v1.0.197
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.06s
[INFO] running `Command { std: "docker" "inspect" "6aae87ed5283eee2d425c18d28188a4db2d0c8dc14bde2c967a6f27fe3a50c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aae87ed5283eee2d425c18d28188a4db2d0c8dc14bde2c967a6f27fe3a50c86", kill_on_drop: false }`
[INFO] [stdout] 6aae87ed5283eee2d425c18d28188a4db2d0c8dc14bde2c967a6f27fe3a50c86
