[INFO] cloning repository https://github.com/ExcaliburZero/jvm-class-file-parser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ExcaliburZero/jvm-class-file-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FExcaliburZero%2Fjvm-class-file-parser"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FExcaliburZero%2Fjvm-class-file-parser'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 207468cbc8e06e8eebf0d452458f7d4cde83606d
[INFO] checking ExcaliburZero/jvm-class-file-parser against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FExcaliburZero%2Fjvm-class-file-parser" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ExcaliburZero/jvm-class-file-parser on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ExcaliburZero/jvm-class-file-parser
[INFO] finished tweaking git repo https://github.com/ExcaliburZero/jvm-class-file-parser
[INFO] tweaked toml for git repo https://github.com/ExcaliburZero/jvm-class-file-parser written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ExcaliburZero/jvm-class-file-parser already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b6f3ed115b7cb7fff740aee2283768be0c6a39ca24d4290f90711d235468c342
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b6f3ed115b7cb7fff740aee2283768be0c6a39ca24d4290f90711d235468c342"`
[INFO] [stderr]     Checking jvm-class-file-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant item is never used: `CONSTANT_TAG_FIELDREF`
[INFO] [stderr]   --> src/writing.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const CONSTANT_TAG_FIELDREF: u8 = 9;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CONSTANT_TAG_FIELDREF`
[INFO] [stderr]   --> src/writing.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const CONSTANT_TAG_FIELDREF: u8 = 9;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `class_file`
[INFO] [stderr]    --> src/main.rs:226:19
[INFO] [stderr]     |
[INFO] [stderr] 226 | fn print_bytecode(class_file: &ClassFile, code: &[(usize, Bytecode)]) {
[INFO] [stderr]     |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_file`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `class_file`
[INFO] [stderr]    --> src/main.rs:226:19
[INFO] [stderr]     |
[INFO] [stderr] 226 | fn print_bytecode(class_file: &ClassFile, code: &[(usize, Bytecode)]) {
[INFO] [stderr]     |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_file`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "b6f3ed115b7cb7fff740aee2283768be0c6a39ca24d4290f90711d235468c342"`
[INFO] running `"docker" "rm" "-f" "b6f3ed115b7cb7fff740aee2283768be0c6a39ca24d4290f90711d235468c342"`
[INFO] [stdout] b6f3ed115b7cb7fff740aee2283768be0c6a39ca24d4290f90711d235468c342