[INFO] cloning repository https://github.com/jweir136/blockchain-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jweir136/blockchain-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjweir136%2Fblockchain-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjweir136%2Fblockchain-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b3108e26df5eecc59766253551aac5151fdfd549 [INFO] testing jweir136/blockchain-rust against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjweir136%2Fblockchain-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jweir136/blockchain-rust on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jweir136/blockchain-rust [INFO] finished tweaking git repo https://github.com/jweir136/blockchain-rust [INFO] tweaked toml for git repo https://github.com/jweir136/blockchain-rust written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/jweir136/blockchain-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 73b5a18c42e754ba96c9891d191fd8ca19c81a1d5ef29d8987a53b43c284b3b4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "73b5a18c42e754ba96c9891d191fd8ca19c81a1d5ef29d8987a53b43c284b3b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "73b5a18c42e754ba96c9891d191fd8ca19c81a1d5ef29d8987a53b43c284b3b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73b5a18c42e754ba96c9891d191fd8ca19c81a1d5ef29d8987a53b43c284b3b4", kill_on_drop: false }` [INFO] [stdout] 73b5a18c42e754ba96c9891d191fd8ca19c81a1d5ef29d8987a53b43c284b3b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0a03e68c0deb136746c1868beb01f588d1b0f42565593c7911997341852bf520 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0a03e68c0deb136746c1868beb01f588d1b0f42565593c7911997341852bf520", kill_on_drop: false }` [INFO] [stderr] Compiling blockchain v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `last_hash` [INFO] [stdout] --> src/lib.rs:162:13 [INFO] [stdout] | [INFO] [stdout] 162 | let last_hash : u64 = Block::calculate_hash(self.blocks.last().unwrap()); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_hash` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.37s [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0a03e68c0deb136746c1868beb01f588d1b0f42565593c7911997341852bf520", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a03e68c0deb136746c1868beb01f588d1b0f42565593c7911997341852bf520", kill_on_drop: false }` [INFO] [stdout] 0a03e68c0deb136746c1868beb01f588d1b0f42565593c7911997341852bf520 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f515b6461d23ddc283c0c9f0ad42e0e2479ca0ccf1c06d0ada25f97b0747c407 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f515b6461d23ddc283c0c9f0ad42e0e2479ca0ccf1c06d0ada25f97b0747c407", kill_on_drop: false }` [INFO] [stderr] Compiling blockchain v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `last_hash` [INFO] [stdout] --> src/lib.rs:162:13 [INFO] [stdout] | [INFO] [stdout] 162 | let last_hash : u64 = Block::calculate_hash(self.blocks.last().unwrap()); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_hash` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_hash` [INFO] [stdout] --> src/lib.rs:162:13 [INFO] [stdout] | [INFO] [stdout] 162 | let last_hash : u64 = Block::calculate_hash(self.blocks.last().unwrap()); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_hash` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.49s [INFO] running `Command { std: "docker" "inspect" "f515b6461d23ddc283c0c9f0ad42e0e2479ca0ccf1c06d0ada25f97b0747c407", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f515b6461d23ddc283c0c9f0ad42e0e2479ca0ccf1c06d0ada25f97b0747c407", kill_on_drop: false }` [INFO] [stdout] f515b6461d23ddc283c0c9f0ad42e0e2479ca0ccf1c06d0ada25f97b0747c407 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 52c941cc40bd6d7a64aac5ac88fdf74e07d07f792e1d1616e00870fd3f5ce60f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "52c941cc40bd6d7a64aac5ac88fdf74e07d07f792e1d1616e00870fd3f5ce60f", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `last_hash` [INFO] [stderr] --> src/lib.rs:162:13 [INFO] [stderr] | [INFO] [stderr] 162 | let last_hash : u64 = Block::calculate_hash(self.blocks.last().unwrap()); [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_hash` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `last_hash` [INFO] [stderr] --> src/lib.rs:162:13 [INFO] [stderr] | [INFO] [stderr] 162 | let last_hash : u64 = Block::calculate_hash(self.blocks.last().unwrap()); [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_hash` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/blockchain-b19e39a59d6031eb) [INFO] [stdout] [INFO] [stderr] Doc-tests blockchain [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "52c941cc40bd6d7a64aac5ac88fdf74e07d07f792e1d1616e00870fd3f5ce60f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52c941cc40bd6d7a64aac5ac88fdf74e07d07f792e1d1616e00870fd3f5ce60f", kill_on_drop: false }` [INFO] [stdout] 52c941cc40bd6d7a64aac5ac88fdf74e07d07f792e1d1616e00870fd3f5ce60f