[INFO] crate chunked_transfer 1.0.0 is already in cache
[INFO] extracting crate chunked_transfer 1.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/chunked_transfer/1.0.0
[INFO] extracting crate chunked_transfer 1.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chunked_transfer/1.0.0
[INFO] validating manifest of chunked_transfer-1.0.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chunked_transfer-1.0.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chunked_transfer-1.0.0
[INFO] finished frobbing chunked_transfer-1.0.0
[INFO] frobbed toml for chunked_transfer-1.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/chunked_transfer/1.0.0/Cargo.toml
[INFO] started frobbing chunked_transfer-1.0.0
[INFO] finished frobbing chunked_transfer-1.0.0
[INFO] frobbed toml for chunked_transfer-1.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chunked_transfer/1.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chunked_transfer-1.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chunked_transfer/1.0.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 95ea8531a58c4afc2903ab6722592105c8f8d094ded9a15b7be4bf2e835db086
[INFO] running `"docker" "start" "-a" "95ea8531a58c4afc2903ab6722592105c8f8d094ded9a15b7be4bf2e835db086"`
[INFO] [stderr]    Compiling chunked_transfer v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "95ea8531a58c4afc2903ab6722592105c8f8d094ded9a15b7be4bf2e835db086"`
[INFO] running `"docker" "rm" "-f" "95ea8531a58c4afc2903ab6722592105c8f8d094ded9a15b7be4bf2e835db086"`
[INFO] [stdout] 95ea8531a58c4afc2903ab6722592105c8f8d094ded9a15b7be4bf2e835db086
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chunked_transfer/1.0.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d5118373aeb1e30699e9a75a2dcc29707460cf0b18ce2667fb7fca8a1f0e41d3
[INFO] running `"docker" "start" "-a" "d5118373aeb1e30699e9a75a2dcc29707460cf0b18ce2667fb7fca8a1f0e41d3"`
[INFO] [stderr]    Compiling chunked_transfer v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]    --> src/decoder.rs:280:9
[INFO] [stderr]     |
[INFO] [stderr] 280 |         decoded.read_to_string(&mut string).is_err();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]    --> src/decoder.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 |         decoded.read_to_string(&mut string).is_err();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "d5118373aeb1e30699e9a75a2dcc29707460cf0b18ce2667fb7fca8a1f0e41d3"`
[INFO] running `"docker" "rm" "-f" "d5118373aeb1e30699e9a75a2dcc29707460cf0b18ce2667fb7fca8a1f0e41d3"`
[INFO] [stdout] d5118373aeb1e30699e9a75a2dcc29707460cf0b18ce2667fb7fca8a1f0e41d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chunked_transfer/1.0.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 096044c726f9501dbfc6e89824aea9b3c983588cf443c4d73bf3d6e1a982b12b
[INFO] running `"docker" "start" "-a" "096044c726f9501dbfc6e89824aea9b3c983588cf443c4d73bf3d6e1a982b12b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chunked_transfer-c905b98edf0e616b
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test decoder::test::test_decode_zero_length ... ok
[INFO] [stdout] test decoder::test::invalid_input1 ... ok
[INFO] [stdout] test decoder::test::test_read_chunk_size ... ok
[INFO] [stdout] test decoder::test::test_valid_chunk_decode ... ok
[INFO] [stdout] test decoder::test::invalid_input2 ... ok
[INFO] [stdout] test decoder::test::test_decode_invalid_chunk_length ... ok
[INFO] [stdout] test encoder::test::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chunked_transfer
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/encoder.rs - encoder::Encoder (line 23) ... ok
[INFO] [stdout] test src/decoder.rs - decoder::Decoder (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "096044c726f9501dbfc6e89824aea9b3c983588cf443c4d73bf3d6e1a982b12b"`
[INFO] running `"docker" "rm" "-f" "096044c726f9501dbfc6e89824aea9b3c983588cf443c4d73bf3d6e1a982b12b"`
[INFO] [stdout] 096044c726f9501dbfc6e89824aea9b3c983588cf443c4d73bf3d6e1a982b12b