[INFO] fetching crate pclass-parser 0.1.0...
[INFO] testing pclass-parser-0.1.0 against 1.52.1 for beta-1.52-2
[INFO] extracting crate pclass-parser 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate pclass-parser 0.1.0 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pclass-parser 0.1.0
[INFO] finished tweaking crates.io crate pclass-parser 0.1.0
[INFO] tweaked toml for crates.io crate pclass-parser 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate pclass-parser 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e92b2965cc0bc836a041482f579585d5374c89db9bca9d83f5f8cf1c14a12ddf
[INFO] running `Command { std: "docker" "start" "-a" "e92b2965cc0bc836a041482f579585d5374c89db9bca9d83f5f8cf1c14a12ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e92b2965cc0bc836a041482f579585d5374c89db9bca9d83f5f8cf1c14a12ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e92b2965cc0bc836a041482f579585d5374c89db9bca9d83f5f8cf1c14a12ddf", kill_on_drop: false }`
[INFO] [stdout] e92b2965cc0bc836a041482f579585d5374c89db9bca9d83f5f8cf1c14a12ddf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5cba386a9bf899c16963dadfd03098fbeb468991a6c0d368e36b440ed33079e0
[INFO] running `Command { std: "docker" "start" "-a" "5cba386a9bf899c16963dadfd03098fbeb468991a6c0d368e36b440ed33079e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling pclass-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parse_class(b"");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "5cba386a9bf899c16963dadfd03098fbeb468991a6c0d368e36b440ed33079e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cba386a9bf899c16963dadfd03098fbeb468991a6c0d368e36b440ed33079e0", kill_on_drop: false }`
[INFO] [stdout] 5cba386a9bf899c16963dadfd03098fbeb468991a6c0d368e36b440ed33079e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7889803b4a43f9de71ad086af0e7d403fe8aa2e1266670e138fc7bdf633caa0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7889803b4a43f9de71ad086af0e7d403fe8aa2e1266670e138fc7bdf633caa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling pclass-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     parse_class(b"");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "d7889803b4a43f9de71ad086af0e7d403fe8aa2e1266670e138fc7bdf633caa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7889803b4a43f9de71ad086af0e7d403fe8aa2e1266670e138fc7bdf633caa0", kill_on_drop: false }`
[INFO] [stdout] d7889803b4a43f9de71ad086af0e7d403fe8aa2e1266670e138fc7bdf633caa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e3a6c2fa61235ae0cc74070909496306aeb594967d1159976b6bad51b567c339
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e3a6c2fa61235ae0cc74070909496306aeb594967d1159976b6bad51b567c339", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     parse_class(b"");
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pclass_parser-6d9dcbc9b16b80ff)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test class_parser::signature::tests::field ... ok
[INFO] [stdout] test class_parser::signature::tests::method_arg_generic ... ok
[INFO] [stdout] test class_parser::tests::it_works ... ok
[INFO] [stdout] test class_parser::signature::tests::t_class_signature ... ok
[INFO] [stdout] test classfile::opcode::tests::t_opcode ... ok
[INFO] [stdout] test class_parser::signature::tests::method_return_generic ... ok
[INFO] [stdout] test classfile::tests::it_works ... ok
[INFO] [stdout] test class_parser::signature::tests::generic1 ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pclass_parser-ce984fbb377abb50)
[INFO] [stdout] test class_parser::signature::tests::generic_nest1 ... ok
[INFO] [stdout] test class_parser::signature::tests::generic_method ... ok
[INFO] [stdout] test class_parser::signature::tests::generic2 ... ok
[INFO] [stdout] test class_parser::signature::tests::method_array_object ... ok
[INFO] [stdout] test class_parser::signature::tests::method_mix ... ok
[INFO] [stdout] test class_parser::signature::tests::method_primitive ... ok
[INFO] [stdout] test class_parser::signature::tests::t_method_no_arg ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pclass-parser
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e3a6c2fa61235ae0cc74070909496306aeb594967d1159976b6bad51b567c339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a6c2fa61235ae0cc74070909496306aeb594967d1159976b6bad51b567c339", kill_on_drop: false }`
[INFO] [stdout] e3a6c2fa61235ae0cc74070909496306aeb594967d1159976b6bad51b567c339