[INFO] fetching crate cirru_parser 0.1.8...
[INFO] checking cirru_parser-0.1.8 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate cirru_parser 0.1.8 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate cirru_parser 0.1.8 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cirru_parser 0.1.8
[INFO] finished tweaking crates.io crate cirru_parser 0.1.8
[INFO] tweaked toml for crates.io crate cirru_parser 0.1.8 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate crates.io crate cirru_parser 0.1.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fb23a8d9cd8344bde7ef42ac0403bc76699c9f77dd782c957a5c19f9a19721e
[INFO] running `Command { std: "docker" "start" "-a" "4fb23a8d9cd8344bde7ef42ac0403bc76699c9f77dd782c957a5c19f9a19721e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fb23a8d9cd8344bde7ef42ac0403bc76699c9f77dd782c957a5c19f9a19721e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fb23a8d9cd8344bde7ef42ac0403bc76699c9f77dd782c957a5c19f9a19721e", kill_on_drop: false }`
[INFO] [stdout] 4fb23a8d9cd8344bde7ef42ac0403bc76699c9f77dd782c957a5c19f9a19721e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f143cad22cd46d0195f9fe4ac520adc05f5bd0fc18e1a2d39f461f144866fdc
[INFO] running `Command { std: "docker" "start" "-a" "6f143cad22cd46d0195f9fe4ac520adc05f5bd0fc18e1a2d39f461f144866fdc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking cirru_parser v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stdout] warning: unused variable: `demo`
[INFO] [stdout]  --> examples/demo.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |   let demo = String::from(
[INFO] [stdout]   |       ^^^^ help: if this is intentional, prefix it with an underscore: `_demo`
[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: function is never used: `to_json_value`
[INFO] [stdout]   --> tests/json.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn to_json_value(x: Cirru) -> Value {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_json_str`
[INFO] [stdout]   --> tests/json.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn to_json_str(x: Cirru) -> Result<String, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_json_value`
[INFO] [stdout]   --> tests/json.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn to_json_value(x: Cirru) -> Value {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_json_str`
[INFO] [stdout]   --> tests/json.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn to_json_str(x: Cirru) -> Result<String, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.64s
[INFO] running `Command { std: "docker" "inspect" "6f143cad22cd46d0195f9fe4ac520adc05f5bd0fc18e1a2d39f461f144866fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f143cad22cd46d0195f9fe4ac520adc05f5bd0fc18e1a2d39f461f144866fdc", kill_on_drop: false }`
[INFO] [stdout] 6f143cad22cd46d0195f9fe4ac520adc05f5bd0fc18e1a2d39f461f144866fdc
