[INFO] fetching crate rusta 0.0.2...
[INFO] testing rusta-0.0.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rusta 0.0.2 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate rusta 0.0.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusta 0.0.2
[INFO] finished tweaking crates.io crate rusta 0.0.2
[INFO] tweaked toml for crates.io crate rusta 0.0.2 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2d90a7dddc29830051712f90f78e85decb271a5ecbf5c5186b034393fb82804
[INFO] running `Command { std: "docker" "start" "-a" "a2d90a7dddc29830051712f90f78e85decb271a5ecbf5c5186b034393fb82804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2d90a7dddc29830051712f90f78e85decb271a5ecbf5c5186b034393fb82804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2d90a7dddc29830051712f90f78e85decb271a5ecbf5c5186b034393fb82804", kill_on_drop: false }`
[INFO] [stdout] a2d90a7dddc29830051712f90f78e85decb271a5ecbf5c5186b034393fb82804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 105aaab01f23729bcff2b1f32ed9b1148080129463c12b2659baa8a9e8c79d01
[INFO] running `Command { std: "docker" "start" "-a" "105aaab01f23729bcff2b1f32ed9b1148080129463c12b2659baa8a9e8c79d01", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusta v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `new_parser_builder`
[INFO] [stdout]  --> src/lib.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `FileReadMemorySettings`
[INFO] [stdout]  --> src/config/mod.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum FileReadMemorySettings {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `FileReadConcurrencySettings`
[INFO] [stdout]   --> src/config/mod.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum FileReadConcurrencySettings {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParsingPropertiesMode`
[INFO] [stdout]   --> src/config/mod.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum ParsingPropertiesMode {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ParsingSettings`
[INFO] [stdout]   --> src/config/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct ParsingSettings {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "105aaab01f23729bcff2b1f32ed9b1148080129463c12b2659baa8a9e8c79d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "105aaab01f23729bcff2b1f32ed9b1148080129463c12b2659baa8a9e8c79d01", kill_on_drop: false }`
[INFO] [stdout] 105aaab01f23729bcff2b1f32ed9b1148080129463c12b2659baa8a9e8c79d01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3115d2a6e3ecf640a3079be148234f4dc0a74c0a6cf480774315d94753a40ceb
[INFO] running `Command { std: "docker" "start" "-a" "3115d2a6e3ecf640a3079be148234f4dc0a74c0a6cf480774315d94753a40ceb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: function is never used: `new_parser_builder`
[INFO] [stdout]  --> src/lib.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusta v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `FileReadMemorySettings`
[INFO] [stdout]  --> src/config/mod.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum FileReadMemorySettings {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `FileReadConcurrencySettings`
[INFO] [stdout]   --> src/config/mod.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum FileReadConcurrencySettings {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParsingPropertiesMode`
[INFO] [stdout]   --> src/config/mod.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum ParsingPropertiesMode {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ParsingSettings`
[INFO] [stdout]   --> src/config/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct ParsingSettings {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `new_parser_builder`
[INFO] [stdout]  --> src/lib.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `FileReadMemorySettings`
[INFO] [stdout]  --> src/config/mod.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum FileReadMemorySettings {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `FileReadConcurrencySettings`
[INFO] [stdout]   --> src/config/mod.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum FileReadConcurrencySettings {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParsingPropertiesMode`
[INFO] [stdout]   --> src/config/mod.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum ParsingPropertiesMode {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ParsingSettings`
[INFO] [stdout]   --> src/config/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct ParsingSettings {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rusta-3d39aab4a88fda02)
[INFO] running `Command { std: "docker" "inspect" "3115d2a6e3ecf640a3079be148234f4dc0a74c0a6cf480774315d94753a40ceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3115d2a6e3ecf640a3079be148234f4dc0a74c0a6cf480774315d94753a40ceb", kill_on_drop: false }`
[INFO] [stdout] 3115d2a6e3ecf640a3079be148234f4dc0a74c0a6cf480774315d94753a40ceb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15fd90d94fddd5dddb5989e80ee934e780404f98747f5e549bc3b4acdf738f74
[INFO] running `Command { std: "docker" "start" "-a" "15fd90d94fddd5dddb5989e80ee934e780404f98747f5e549bc3b4acdf738f74", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `new_parser_builder`
[INFO] [stdout] 
[INFO] [stderr]  --> src/lib.rs:8:4
[INFO] [stdout] running 1 test
[INFO] [stderr]   |
[INFO] [stdout] test it_works ... ok
[INFO] [stderr] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stdout] 
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FileReadMemorySettings`
[INFO] [stderr]  --> src/config/mod.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum FileReadMemorySettings {
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FileReadConcurrencySettings`
[INFO] [stderr]   --> src/config/mod.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub enum FileReadConcurrencySettings {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ParsingPropertiesMode`
[INFO] [stderr]   --> src/config/mod.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub enum ParsingPropertiesMode {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ParsingSettings`
[INFO] [stderr]   --> src/config/mod.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct ParsingSettings {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rusta` (lib) generated 5 warnings
[INFO] [stderr] warning: `rusta` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rusta-3d39aab4a88fda02)
[INFO] [stderr]    Doc-tests rusta
[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" "15fd90d94fddd5dddb5989e80ee934e780404f98747f5e549bc3b4acdf738f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15fd90d94fddd5dddb5989e80ee934e780404f98747f5e549bc3b4acdf738f74", kill_on_drop: false }`
[INFO] [stdout] 15fd90d94fddd5dddb5989e80ee934e780404f98747f5e549bc3b4acdf738f74