[INFO] crate stringio 0.3.0 is already in cache
[INFO] extracting crate stringio 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/stringio/0.3.0
[INFO] extracting crate stringio 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/stringio/0.3.0
[INFO] validating manifest of stringio-0.3.0 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 stringio-0.3.0 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 stringio-0.3.0
[INFO] finished frobbing stringio-0.3.0
[INFO] frobbed toml for stringio-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/stringio/0.3.0/Cargo.toml
[INFO] started frobbing stringio-0.3.0
[INFO] finished frobbing stringio-0.3.0
[INFO] frobbed toml for stringio-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/stringio/0.3.0/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 stringio-0.3.0 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-2/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/stringio/0.3.0:/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] d1baaf7268db40e5312219f3784af0a7aa54016cd4c0d3f9850ac18bb20c6d57
[INFO] running `"docker" "start" "-a" "d1baaf7268db40e5312219f3784af0a7aa54016cd4c0d3f9850ac18bb20c6d57"`
[INFO] [stderr]    Compiling stringio v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: missing documentation for crate
[INFO] [stderr]    --> src/lib.rs:1:1
[INFO] [stderr]     |
[INFO] [stderr] 1   | / #![warn(bare_trait_objects)]
[INFO] [stderr] 2   | | #![deny(missing_debug_implementations)]
[INFO] [stderr] 3   | | #![warn(missing_docs)]
[INFO] [stderr] 4   | |
[INFO] [stderr] ...   |
[INFO] [stderr] 121 | |     }
[INFO] [stderr] 122 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:3:9
[INFO] [stderr]     |
[INFO] [stderr] 3   | #![warn(missing_docs)]
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a module
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub mod read;
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a module
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub mod write;
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/write.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![warn(missing_docs)]
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a trait
[INFO] [stderr]   --> src/write.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub trait IntoStrWrite: io::Write {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a trait method
[INFO] [stderr]   --> src/write.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 | /     fn into_str_write(self) -> StrWriter<Self>
[INFO] [stderr] 82 | |     where
[INFO] [stderr] 83 | |         Self: Sized,
[INFO] [stderr] 84 | |     {
[INFO] [stderr] 85 | |         StrWriter::wrap(self)
[INFO] [stderr] 86 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a trait method
[INFO] [stderr]   --> src/write.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn str_writer_by_ref(&mut self) -> StrWriter<&mut Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a method
[INFO] [stderr]    --> src/write.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn wrap(writer: W) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "d1baaf7268db40e5312219f3784af0a7aa54016cd4c0d3f9850ac18bb20c6d57"`
[INFO] running `"docker" "rm" "-f" "d1baaf7268db40e5312219f3784af0a7aa54016cd4c0d3f9850ac18bb20c6d57"`
[INFO] [stdout] d1baaf7268db40e5312219f3784af0a7aa54016cd4c0d3f9850ac18bb20c6d57
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/stringio/0.3.0:/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] 18440c775cef3c1db5771862893354eb607db5160826b56fffd91331684a68dc
[INFO] running `"docker" "start" "-a" "18440c775cef3c1db5771862893354eb607db5160826b56fffd91331684a68dc"`
[INFO] [stderr]    Compiling stringio v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "18440c775cef3c1db5771862893354eb607db5160826b56fffd91331684a68dc"`
[INFO] running `"docker" "rm" "-f" "18440c775cef3c1db5771862893354eb607db5160826b56fffd91331684a68dc"`
[INFO] [stdout] 18440c775cef3c1db5771862893354eb607db5160826b56fffd91331684a68dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/stringio/0.3.0:/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] 1c0b7d902d5e27a494b13dfed3cec5b79376a13eda6d51f6685c0ad039897522
[INFO] running `"docker" "start" "-a" "1c0b7d902d5e27a494b13dfed3cec5b79376a13eda6d51f6685c0ad039897522"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stringio-f54e0ecdb3ee1a77
[INFO] [stdout] test tests::test_partial_from_utf8::test_not_unicode ... ok
[INFO] [stdout] test tests::test_partial_from_utf8::test_empty ... ok
[INFO] [stdout] test tests::test_partial_from_utf8::test_bad_unicode ... ok
[INFO] [stdout] test tests::test_partial_from_utf8::test_partial_string ... ok
[INFO] [stdout] test tests::test_partial_from_utf8::test_simple_string ... ok
[INFO] [stdout] test write::test_is_continuation_byte ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stringio
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - partial_from_utf8 (line 22) ... ok
[INFO] [stdout] test src/lib.rs - partial_from_utf8_mut (line 50) ... 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" "1c0b7d902d5e27a494b13dfed3cec5b79376a13eda6d51f6685c0ad039897522"`
[INFO] running `"docker" "rm" "-f" "1c0b7d902d5e27a494b13dfed3cec5b79376a13eda6d51f6685c0ad039897522"`
[INFO] [stdout] 1c0b7d902d5e27a494b13dfed3cec5b79376a13eda6d51f6685c0ad039897522