[INFO] cloning repository https://github.com/dan-f/blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dan-f/blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdan-f%2Fblockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdan-f%2Fblockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d86b044e1da1625b51e69c1564b6c388c9c8834
[INFO] testing dan-f/blockchain against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdan-f%2Fblockchain" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dan-f/blockchain on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dan-f/blockchain
[INFO] finished tweaking git repo https://github.com/dan-f/blockchain
[INFO] tweaked toml for git repo https://github.com/dan-f/blockchain written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dan-f/blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.66
[INFO] [stderr]   Downloaded crypto-hash v0.3.1
[INFO] [stderr]   Downloaded openssl v0.10.10
[INFO] [stderr]   Downloaded bincode v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e397fda39ded788755a4e50494104807cf95e09146360c3464cb406ca867cfd
[INFO] running `Command { std: "docker" "start" "-a" "0e397fda39ded788755a4e50494104807cf95e09146360c3464cb406ca867cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e397fda39ded788755a4e50494104807cf95e09146360c3464cb406ca867cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e397fda39ded788755a4e50494104807cf95e09146360c3464cb406ca867cfd", kill_on_drop: false }`
[INFO] [stdout] 0e397fda39ded788755a4e50494104807cf95e09146360c3464cb406ca867cfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84f19f85d26660cda416d71fe3842bde17432e297d3aa23027a581e69402102d
[INFO] running `Command { std: "docker" "start" "-a" "84f19f85d26660cda416d71fe3842bde17432e297d3aa23027a581e69402102d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]    Compiling openssl v0.10.10
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling openssl-sys v0.9.33
[INFO] [stderr]    Compiling crypto-hash v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling bincode v1.0.0
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.52s
[INFO] running `Command { std: "docker" "inspect" "84f19f85d26660cda416d71fe3842bde17432e297d3aa23027a581e69402102d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f19f85d26660cda416d71fe3842bde17432e297d3aa23027a581e69402102d", kill_on_drop: false }`
[INFO] [stdout] 84f19f85d26660cda416d71fe3842bde17432e297d3aa23027a581e69402102d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75327995c5f9d3bb2cb94edacb47f6f0fc1a317bd298651a453c47efa452af6d
[INFO] running `Command { std: "docker" "start" "-a" "75327995c5f9d3bb2cb94edacb47f6f0fc1a317bd298651a453c47efa452af6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "75327995c5f9d3bb2cb94edacb47f6f0fc1a317bd298651a453c47efa452af6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75327995c5f9d3bb2cb94edacb47f6f0fc1a317bd298651a453c47efa452af6d", kill_on_drop: false }`
[INFO] [stdout] 75327995c5f9d3bb2cb94edacb47f6f0fc1a317bd298651a453c47efa452af6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 61584356a74ee4f52dc0131d35223ab8920e1e4d0688cb6fece6815a7e10e877
[INFO] running `Command { std: "docker" "start" "-a" "61584356a74ee4f52dc0131d35223ab8920e1e4d0688cb6fece6815a7e10e877", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blockchain-3eb1f5c7529a84a5)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test list::tests::list_has_a_length ... ok
[INFO] [stdout] test list::tests::new_list_is_empty ... ok
[INFO] [stdout] test list::tests::list_can_branch ... ok
[INFO] [stdout] test list::tests::list_is_a_stack ... ok
[INFO] [stdout] test blockchain::tests::blockchain_will_not_add_block_with_wrong_prev_hash ... ok
[INFO] [stdout] test blockchain::tests::blockchain_will_not_add_block_with_unacceptable_proof_of_work ... ok
[INFO] [stdout] test block::tests::it_constructs_a_genesis_block ... ok
[INFO] [stdout] test blockchain::tests::new_blockchain_uses_genesis_block ... ok
[INFO] [stdout] test blockchain::tests::blockchain_can_add_block ... ok
[INFO] [stdout] test blockchain::tests::blockchain_can_mine_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.88s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blockchain
[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" "61584356a74ee4f52dc0131d35223ab8920e1e4d0688cb6fece6815a7e10e877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61584356a74ee4f52dc0131d35223ab8920e1e4d0688cb6fece6815a7e10e877", kill_on_drop: false }`
[INFO] [stdout] 61584356a74ee4f52dc0131d35223ab8920e1e4d0688cb6fece6815a7e10e877