[INFO] fetching crate rusta 0.0.2...
[INFO] testing rusta-0.0.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rusta 0.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rusta 0.0.2 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b95430874d2f23c72ac3cfe195bff9e4d35a3ab0f73e812e7affb084476b6600
[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" "b95430874d2f23c72ac3cfe195bff9e4d35a3ab0f73e812e7affb084476b6600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b95430874d2f23c72ac3cfe195bff9e4d35a3ab0f73e812e7affb084476b6600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95430874d2f23c72ac3cfe195bff9e4d35a3ab0f73e812e7affb084476b6600", kill_on_drop: false }`
[INFO] [stdout] b95430874d2f23c72ac3cfe195bff9e4d35a3ab0f73e812e7affb084476b6600
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a454f48d03585ca62d579f2af7ca92c61c6200dac77208b021864145ff88e1d4
[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" "a454f48d03585ca62d579f2af7ca92c61c6200dac77208b021864145ff88e1d4", kill_on_drop: false }`
[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]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[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: 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] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a454f48d03585ca62d579f2af7ca92c61c6200dac77208b021864145ff88e1d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a454f48d03585ca62d579f2af7ca92c61c6200dac77208b021864145ff88e1d4", kill_on_drop: false }`
[INFO] [stdout] a454f48d03585ca62d579f2af7ca92c61c6200dac77208b021864145ff88e1d4
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a766f760940619860e28281a6f6657fa8b7aed5fa814a7b95359eb4460eeb547
[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" "a766f760940619860e28281a6f6657fa8b7aed5fa814a7b95359eb4460eeb547", kill_on_drop: false }`
[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]   = 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: `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: 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] 
[INFO] [stdout] warning: 5 warnings emitted
[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]   = note: `#[warn(dead_code)]` on by default
[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: 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] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a766f760940619860e28281a6f6657fa8b7aed5fa814a7b95359eb4460eeb547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a766f760940619860e28281a6f6657fa8b7aed5fa814a7b95359eb4460eeb547", kill_on_drop: false }`
[INFO] [stdout] a766f760940619860e28281a6f6657fa8b7aed5fa814a7b95359eb4460eeb547
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b1f2d2303b9b7d9bd1d42c1f6a92b5e1f260d1f05bb71b1ae6f0492c4dd37aed
[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" "b1f2d2303b9b7d9bd1d42c1f6a92b5e1f260d1f05bb71b1ae6f0492c4dd37aed", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: enum is never used: `FileReadMemorySettings`
[INFO] [stdout] running 1 test
[INFO] [stderr]  --> src/config/mod.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum FileReadMemorySettings {
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[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: function is never used: `new_parser_builder`
[INFO] [stderr]  --> src/lib.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[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]   = note: `#[warn(dead_code)]` on by default
[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: function is never used: `new_parser_builder`
[INFO] [stderr]  --> src/lib.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn new_parser_builder() -> config::ParsingSettings {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusta-980c99d7b3d198cd
[INFO] [stdout] test it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "b1f2d2303b9b7d9bd1d42c1f6a92b5e1f260d1f05bb71b1ae6f0492c4dd37aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f2d2303b9b7d9bd1d42c1f6a92b5e1f260d1f05bb71b1ae6f0492c4dd37aed", kill_on_drop: false }`
[INFO] [stdout] b1f2d2303b9b7d9bd1d42c1f6a92b5e1f260d1f05bb71b1ae6f0492c4dd37aed