[INFO] cloning repository https://github.com/pelyams/test_densify_no_brainer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pelyams/test_densify_no_brainer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpelyams%2Ftest_densify_no_brainer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpelyams%2Ftest_densify_no_brainer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33dbef82f9edf30fbdaad3e96ca9c41619319605
[INFO] testing pelyams/test_densify_no_brainer against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpelyams%2Ftest_densify_no_brainer" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pelyams/test_densify_no_brainer
[INFO] finished tweaking git repo https://github.com/pelyams/test_densify_no_brainer
[INFO] tweaked toml for git repo https://github.com/pelyams/test_densify_no_brainer written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pelyams/test_densify_no_brainer on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pelyams/test_densify_no_brainer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b623c790441cc83cb6987c3c7056bc87ee9fb0d7ce684051781bdebb6d48133
[INFO] running `Command { std: "docker" "start" "-a" "6b623c790441cc83cb6987c3c7056bc87ee9fb0d7ce684051781bdebb6d48133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b623c790441cc83cb6987c3c7056bc87ee9fb0d7ce684051781bdebb6d48133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b623c790441cc83cb6987c3c7056bc87ee9fb0d7ce684051781bdebb6d48133", kill_on_drop: false }`
[INFO] [stdout] 6b623c790441cc83cb6987c3c7056bc87ee9fb0d7ce684051781bdebb6d48133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 3dc8575d69ec5d92faba00484b963cf9f9ba57f808610f5b2c4bd56d0575116b
[INFO] running `Command { std: "docker" "start" "-a" "3dc8575d69ec5d92faba00484b963cf9f9ba57f808610f5b2c4bd56d0575116b", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_densify_no_brainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/bit_representer.rs:126:16
[INFO] [stdout]     |
[INFO] [stdout] 126 |     ParseError(std::num::ParseIntError),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BitsDecodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 126 -     ParseError(std::num::ParseIntError),
[INFO] [stdout] 126 +     ParseError(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/bit_representer.rs:128:20
[INFO] [stdout]     |
[INFO] [stdout] 128 |     UnexpectedChar(char),
[INFO] [stdout]     |     -------------- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BitsDecodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 128 -     UnexpectedChar(char),
[INFO] [stdout] 128 +     UnexpectedChar(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `revert_to_original_vec` is never used
[INFO] [stdout]  --> src/densifyer.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub(crate) fn revert_to_original_vec(s: &str) -> Result<Vec<u16>, DensifyerError> {
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/densifyer.rs:24:36
[INFO] [stdout]    |
[INFO] [stdout] 24 |     BitRepresentationDecodingError(BitsDecodeError),
[INFO] [stdout]    |     ------------------------------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DensifyerError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -     BitRepresentationDecodingError(BitsDecodeError),
[INFO] [stdout] 24 +     BitRepresentationDecodingError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "3dc8575d69ec5d92faba00484b963cf9f9ba57f808610f5b2c4bd56d0575116b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dc8575d69ec5d92faba00484b963cf9f9ba57f808610f5b2c4bd56d0575116b", kill_on_drop: false }`
[INFO] [stdout] 3dc8575d69ec5d92faba00484b963cf9f9ba57f808610f5b2c4bd56d0575116b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 56243c0eed783a425bf56dd9a6a174f8c2e6fbe45026f7176c0073051b146d7a
[INFO] running `Command { std: "docker" "start" "-a" "56243c0eed783a425bf56dd9a6a174f8c2e6fbe45026f7176c0073051b146d7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_densify_no_brainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/bit_representer.rs:126:16
[INFO] [stdout]     |
[INFO] [stdout] 126 |     ParseError(std::num::ParseIntError),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BitsDecodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 126 -     ParseError(std::num::ParseIntError),
[INFO] [stdout] 126 +     ParseError(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/bit_representer.rs:128:20
[INFO] [stdout]     |
[INFO] [stdout] 128 |     UnexpectedChar(char),
[INFO] [stdout]     |     -------------- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BitsDecodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 128 -     UnexpectedChar(char),
[INFO] [stdout] 128 +     UnexpectedChar(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/densifyer.rs:24:36
[INFO] [stdout]    |
[INFO] [stdout] 24 |     BitRepresentationDecodingError(BitsDecodeError),
[INFO] [stdout]    |     ------------------------------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DensifyerError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -     BitRepresentationDecodingError(BitsDecodeError),
[INFO] [stdout] 24 +     BitRepresentationDecodingError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "56243c0eed783a425bf56dd9a6a174f8c2e6fbe45026f7176c0073051b146d7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56243c0eed783a425bf56dd9a6a174f8c2e6fbe45026f7176c0073051b146d7a", kill_on_drop: false }`
[INFO] [stdout] 56243c0eed783a425bf56dd9a6a174f8c2e6fbe45026f7176c0073051b146d7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] dbf72743512e31fc5fab0533107ad3bb8555feaca676795b4b0e08730f0f95a1
[INFO] running `Command { std: "docker" "start" "-a" "dbf72743512e31fc5fab0533107ad3bb8555feaca676795b4b0e08730f0f95a1", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/bit_representer.rs:126:16
[INFO] [stderr]     |
[INFO] [stderr] 126 |     ParseError(std::num::ParseIntError),
[INFO] [stderr]     |     ---------- ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `BitsDecodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 126 -     ParseError(std::num::ParseIntError),
[INFO] [stderr] 126 +     ParseError(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/bit_representer.rs:128:20
[INFO] [stderr]     |
[INFO] [stderr] 128 |     UnexpectedChar(char),
[INFO] [stderr]     |     -------------- ^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `BitsDecodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 128 -     UnexpectedChar(char),
[INFO] [stderr] 128 +     UnexpectedChar(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/densifyer.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     BitRepresentationDecodingError(BitsDecodeError),
[INFO] [stderr]    |     ------------------------------ ^^^^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DensifyerError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 24 -     BitRepresentationDecodingError(BitsDecodeError),
[INFO] [stderr] 24 +     BitRepresentationDecodingError(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `test_densify_no_brainer` (bin "test_densify_no_brainer" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/test_densify_no_brainer/7014774012b9d563/deps/test_densify_no_brainer-7014774012b9d563)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test base64_encoder_decoder::base64_conversion_tests::test_base2_to_base64_multiple_chunks ... ok
[INFO] [stdout] test base64_encoder_decoder::base64_conversion_tests::test_base64_to_base2_empty ... ok
[INFO] [stdout] test base64_encoder_decoder::base64_conversion_tests::test_base64_to_base2_error_handling ... ok
[INFO] [stdout] test base64_encoder_decoder::base64_conversion_tests::test_base2_to_base64_simple ... ok
[INFO] [stdout] test base64_encoder_decoder::base64_conversion_tests::test_base64_to_base2_simple ... ok
[INFO] [stdout] test base64_encoder_decoder::base64_conversion_tests::test_roundtrip_conversion ... ok
[INFO] [stdout] test bit_representer::tests::test_boundary_values_8_bit ... ok
[INFO] [stdout] test bit_representer::tests::test_empty_string ... ok
[INFO] [stdout] test bit_representer::tests::test_count_boundary_cases ... ok
[INFO] [stdout] test bit_representer::tests::test_decode_error_cases ... ok
[INFO] [stdout] test bit_representer::tests::test_encode_output_length ... ok
[INFO] [stdout] test bit_representer::tests::test_large_counts ... ok
[INFO] [stdout] test bit_representer::tests::test_decode_less_than_8_bits ... ok
[INFO] [stdout] test bit_representer::tests::test_mixed_single_and_repeated ... ok
[INFO] [stdout] test bit_representer::tests::test_multiple_unique_values ... ok
[INFO] [stdout] test bit_representer::tests::test_repeated_values ... ok
[INFO] [stdout] test bit_representer::tests::test_single_value ... ok
[INFO] [stdout] test bit_representer::tests::test_roundtrip ... ok
[INFO] [stdout] test densifyer::tests::test_invalid_characters ... ok
[INFO] [stdout] test densifyer::tests::test_empty_string_handling ... ok
[INFO] [stdout] test densifyer::tests::test_roundtrip_and_print_compression_rate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dbf72743512e31fc5fab0533107ad3bb8555feaca676795b4b0e08730f0f95a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf72743512e31fc5fab0533107ad3bb8555feaca676795b4b0e08730f0f95a1", kill_on_drop: false }`
[INFO] [stdout] dbf72743512e31fc5fab0533107ad3bb8555feaca676795b4b0e08730f0f95a1
