[INFO] crate tokio-bincode 0.1.0 is already in cache
[INFO] extracting crate tokio-bincode 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tokio-bincode/0.1.0
[INFO] extracting crate tokio-bincode 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tokio-bincode/0.1.0
[INFO] validating manifest of tokio-bincode-0.1.0 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 tokio-bincode-0.1.0 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 tokio-bincode-0.1.0
[INFO] finished frobbing tokio-bincode-0.1.0
[INFO] frobbed toml for tokio-bincode-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tokio-bincode/0.1.0/Cargo.toml
[INFO] started frobbing tokio-bincode-0.1.0
[INFO] finished frobbing tokio-bincode-0.1.0
[INFO] frobbed toml for tokio-bincode-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tokio-bincode/0.1.0/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 tokio-bincode-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tokio-bincode/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 3d2d01ae053e180be659e367710c6edf42be5057c52e50de41f20f7c83632032
[INFO] running `"docker" "start" "-a" "3d2d01ae053e180be659e367710c6edf42be5057c52e50de41f20f7c83632032"`
[INFO] [stderr]    Compiling tokio-bincode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `*buf` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |             let mut reader = Reader::new(&buf[..]);
[INFO] [stderr]    |                                           --- immutable borrow occurs here
[INFO] [stderr] 69 |             let message = self.config.deserialize_from(&mut reader)?;
[INFO] [stderr] 70 |             buf.split_to(reader.amount());
[INFO] [stderr]    |             ^^^          ------ immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `"docker" "inspect" "3d2d01ae053e180be659e367710c6edf42be5057c52e50de41f20f7c83632032"`
[INFO] running `"docker" "rm" "-f" "3d2d01ae053e180be659e367710c6edf42be5057c52e50de41f20f7c83632032"`
[INFO] [stdout] 3d2d01ae053e180be659e367710c6edf42be5057c52e50de41f20f7c83632032
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tokio-bincode/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a6ddbdbaa8b0f6382db4f67cadbdc6754a6b03c0c5bf8dd8cac0c2d3b0f68fd8
[INFO] running `"docker" "start" "-a" "a6ddbdbaa8b0f6382db4f67cadbdc6754a6b03c0c5bf8dd8cac0c2d3b0f68fd8"`
[INFO] [stderr]    Compiling tokio-bincode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `*buf` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/lib.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |             let mut reader = Reader::new(&buf[..]);
[INFO] [stderr]    |                                           --- immutable borrow occurs here
[INFO] [stderr] 69 |             let message = self.config.deserialize_from(&mut reader)?;
[INFO] [stderr] 70 |             buf.split_to(reader.amount());
[INFO] [stderr]    |             ^^^          ------ immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `"docker" "inspect" "a6ddbdbaa8b0f6382db4f67cadbdc6754a6b03c0c5bf8dd8cac0c2d3b0f68fd8"`
[INFO] running `"docker" "rm" "-f" "a6ddbdbaa8b0f6382db4f67cadbdc6754a6b03c0c5bf8dd8cac0c2d3b0f68fd8"`
[INFO] [stdout] a6ddbdbaa8b0f6382db4f67cadbdc6754a6b03c0c5bf8dd8cac0c2d3b0f68fd8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tokio-bincode/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 468d605bab9a45454ab4bd8826492fedd7ac259d211a2e644cebb02af094407e
[INFO] running `"docker" "start" "-a" "468d605bab9a45454ab4bd8826492fedd7ac259d211a2e644cebb02af094407e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tokio_bincode-6d3db188c293aee7
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio-bincode
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "468d605bab9a45454ab4bd8826492fedd7ac259d211a2e644cebb02af094407e"`
[INFO] running `"docker" "rm" "-f" "468d605bab9a45454ab4bd8826492fedd7ac259d211a2e644cebb02af094407e"`
[INFO] [stdout] 468d605bab9a45454ab4bd8826492fedd7ac259d211a2e644cebb02af094407e