[INFO] updating cached repository https://github.com/meme/java-class-parser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4a74512a3bb63635df8694f2c393d9b23baf982f
[INFO] checking meme/java-class-parser against master#b1f395de642e8be7bcbbd2bd8aaadab715851f49 for pr-69410
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeme%2Fjava-class-parser" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/meme/java-class-parser on toolchain b1f395de642e8be7bcbbd2bd8aaadab715851f49
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/meme/java-class-parser
[INFO] finished tweaking git repo https://github.com/meme/java-class-parser
[INFO] tweaked toml for git repo https://github.com/meme/java-class-parser written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/meme/java-class-parser already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+b1f395de642e8be7bcbbd2bd8aaadab715851f49" "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] 98ce8d526af1e05e9343b7b8155d9a3ac2bc52232824d5c0c50edc6c2d55f617
[INFO] running `"docker" "start" "-a" "98ce8d526af1e05e9343b7b8155d9a3ac2bc52232824d5c0c50edc6c2d55f617"`
[INFO] [stderr]     Checking java-class-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/lib.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Cursor, Error};
[INFO] [stderr]   |               ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `read_sized_array`
[INFO] [stderr]  --> src/class_file.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::{read_sized_array, write_sized_array, AttributeInfo, Decode, Encode};
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/lib.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Cursor, Error};
[INFO] [stderr]   |               ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `read_sized_array`
[INFO] [stderr]  --> src/class_file.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::{read_sized_array, write_sized_array, AttributeInfo, Decode, Encode};
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/attribute.rs:484:17
[INFO] [stderr]     |
[INFO] [stderr] 484 |                 annotation_value.encode(&mut writer);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/attribute.rs:484:17
[INFO] [stderr]     |
[INFO] [stderr] 484 |                 annotation_value.encode(&mut writer);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `"docker" "inspect" "98ce8d526af1e05e9343b7b8155d9a3ac2bc52232824d5c0c50edc6c2d55f617"`
[INFO] running `"docker" "rm" "-f" "98ce8d526af1e05e9343b7b8155d9a3ac2bc52232824d5c0c50edc6c2d55f617"`
[INFO] [stdout] 98ce8d526af1e05e9343b7b8155d9a3ac2bc52232824d5c0c50edc6c2d55f617