[INFO] fetching crate avm1-tree 0.7.0...
[INFO] checking avm1-tree-0.7.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate avm1-tree 0.7.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate avm1-tree 0.7.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate avm1-tree 0.7.0
[INFO] finished tweaking crates.io crate avm1-tree 0.7.0
[INFO] tweaked toml for crates.io crate avm1-tree 0.7.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-generator v0.2.2
[INFO] [stderr]   Downloaded serde_json_v8 v0.0.1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e82ba571b656db612ebcbaa03742776af57a7e0827e99faadc202c0daec26171
[INFO] running `"docker" "start" "-a" "e82ba571b656db612ebcbaa03742776af57a7e0827e99faadc202c0daec26171"`
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking avm1-tree v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling test-generator v0.2.2
[INFO] [stderr]     Checking serde_json_v8 v0.0.1
[INFO] [stderr] warning: function is never used: `option_buffer_to_hex`
[INFO] [stderr]   --> src/helpers.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | / pub fn option_buffer_to_hex<S>(buffer: &Option<Vec<u8>>, serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stderr] 25 | | where
[INFO] [stderr] 26 | |   S: Serializer,
[INFO] [stderr] 27 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 38 | |   v.serialize(serializer)
[INFO] [stderr] 39 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option_hex_to_buffer`
[INFO] [stderr]   --> src/helpers.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | / pub fn option_hex_to_buffer<'de, D>(deserializer: D) -> Result<Option<Vec<u8>>, D::Error>
[INFO] [stderr] 42 | | where
[INFO] [stderr] 43 | |   D: Deserializer<'de>,
[INFO] [stderr] 44 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |   Ok(v.map(|Wrapper(bytes)| bytes))
[INFO] [stderr] 50 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option_buffer_to_hex`
[INFO] [stderr]   --> src/helpers.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | / pub fn option_buffer_to_hex<S>(buffer: &Option<Vec<u8>>, serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stderr] 25 | | where
[INFO] [stderr] 26 | |   S: Serializer,
[INFO] [stderr] 27 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 38 | |   v.serialize(serializer)
[INFO] [stderr] 39 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option_hex_to_buffer`
[INFO] [stderr]   --> src/helpers.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | / pub fn option_hex_to_buffer<'de, D>(deserializer: D) -> Result<Option<Vec<u8>>, D::Error>
[INFO] [stderr] 42 | | where
[INFO] [stderr] 43 | |   D: Deserializer<'de>,
[INFO] [stderr] 44 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |   Ok(v.map(|Wrapper(bytes)| bytes))
[INFO] [stderr] 50 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_parse_json`
[INFO] [stderr]   --> src/value.rs:61:3
[INFO] [stderr]    |
[INFO] [stderr] 61 |   fn test_parse_json(path: &str) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_cfg`
[INFO] [stderr]    --> src/lib.rs:316:3
[INFO] [stderr]     |
[INFO] [stderr] 316 |   fn test_cfg(path: &str) {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_parse_action`
[INFO] [stderr]    --> src/lib.rs:350:3
[INFO] [stderr]     |
[INFO] [stderr] 350 |   fn test_parse_action(path: &str) {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `"docker" "inspect" "e82ba571b656db612ebcbaa03742776af57a7e0827e99faadc202c0daec26171"`
[INFO] running `"docker" "rm" "-f" "e82ba571b656db612ebcbaa03742776af57a7e0827e99faadc202c0daec26171"`
[INFO] [stdout] e82ba571b656db612ebcbaa03742776af57a7e0827e99faadc202c0daec26171