[INFO] cloning repository https://github.com/annikoff/hmbc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/annikoff/hmbc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fannikoff%2Fhmbc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fannikoff%2Fhmbc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72f75e1920bc90f0f3aa1f01c3b3bd3b34664090
[INFO] testing annikoff/hmbc against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fannikoff%2Fhmbc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/annikoff/hmbc on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/annikoff/hmbc
[INFO] finished tweaking git repo https://github.com/annikoff/hmbc
[INFO] tweaked toml for git repo https://github.com/annikoff/hmbc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/annikoff/hmbc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b04e12ebc2630f59598d9d3cebf84fcd4b3577810aa393ee01db5fd40cc0d53
[INFO] running `Command { std: "docker" "start" "-a" "2b04e12ebc2630f59598d9d3cebf84fcd4b3577810aa393ee01db5fd40cc0d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b04e12ebc2630f59598d9d3cebf84fcd4b3577810aa393ee01db5fd40cc0d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b04e12ebc2630f59598d9d3cebf84fcd4b3577810aa393ee01db5fd40cc0d53", kill_on_drop: false }`
[INFO] [stdout] 2b04e12ebc2630f59598d9d3cebf84fcd4b3577810aa393ee01db5fd40cc0d53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 537a85eb4923a4a2fb11a477eaaa91ddf447b6ad97f0d092dcb0900b2e312445
[INFO] running `Command { std: "docker" "start" "-a" "537a85eb4923a4a2fb11a477eaaa91ddf447b6ad97f0d092dcb0900b2e312445", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling hmbc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `timestamp`
[INFO] [stdout]   --> src/block.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     timestamp: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `previous_hash`
[INFO] [stdout]   --> src/block.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     previous_hash: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `content`
[INFO] [stdout]   --> src/block.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     content: BlockContent,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `timestamp`
[INFO] [stdout]   --> src/block.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn timestamp(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `previous_hash`
[INFO] [stdout]   --> src/block.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn previous_hash(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `content`
[INFO] [stdout]   --> src/block.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn content(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `content`
[INFO] [stdout]  --> src/block_content.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     content: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `content`
[INFO] [stdout]   --> src/block_content.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn content(&self) -> &String {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `block`
[INFO] [stdout]   --> src/blockchain.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn block(&self, index: usize) -> Option<&Block> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/blockchain.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.79s
[INFO] running `Command { std: "docker" "inspect" "537a85eb4923a4a2fb11a477eaaa91ddf447b6ad97f0d092dcb0900b2e312445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "537a85eb4923a4a2fb11a477eaaa91ddf447b6ad97f0d092dcb0900b2e312445", kill_on_drop: false }`
[INFO] [stdout] 537a85eb4923a4a2fb11a477eaaa91ddf447b6ad97f0d092dcb0900b2e312445
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2d6c83faceac06513dbc908ccf1ddaba58330be3c62455b6a48b6171b74c25c
[INFO] running `Command { std: "docker" "start" "-a" "e2d6c83faceac06513dbc908ccf1ddaba58330be3c62455b6a48b6171b74c25c", kill_on_drop: false }`
[INFO] [stderr]    Compiling hmbc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `timestamp`
[INFO] [stdout]   --> src/block.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     timestamp: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `timestamp`
[INFO] [stdout]   --> src/block.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn timestamp(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "e2d6c83faceac06513dbc908ccf1ddaba58330be3c62455b6a48b6171b74c25c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d6c83faceac06513dbc908ccf1ddaba58330be3c62455b6a48b6171b74c25c", kill_on_drop: false }`
[INFO] [stdout] e2d6c83faceac06513dbc908ccf1ddaba58330be3c62455b6a48b6171b74c25c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a42a5917d8dd783e3f78a0d241212a528ebdd48b1aec1a57f8ce44e9e81f522e
[INFO] running `Command { std: "docker" "start" "-a" "a42a5917d8dd783e3f78a0d241212a528ebdd48b1aec1a57f8ce44e9e81f522e", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `timestamp`
[INFO] [stderr]   --> src/block.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     timestamp: i64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `timestamp`
[INFO] [stderr]   --> src/block.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn timestamp(&self) -> i64 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hmbc` (bin "hmbc" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hmbc-ae45af23af4d3939)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test block::tests::create_block ... ok
[INFO] [stdout] test blockchain::tests::last_block ... ok
[INFO] [stdout] test blockchain::tests::create_blockchain_with_genesis_block ... ok
[INFO] [stdout] test block_content::tests::create_block_content ... ok
[INFO] [stdout] test blockchain::tests::create_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a42a5917d8dd783e3f78a0d241212a528ebdd48b1aec1a57f8ce44e9e81f522e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a42a5917d8dd783e3f78a0d241212a528ebdd48b1aec1a57f8ce44e9e81f522e", kill_on_drop: false }`
[INFO] [stdout] a42a5917d8dd783e3f78a0d241212a528ebdd48b1aec1a57f8ce44e9e81f522e