[INFO] crate rw 1.0.0 is already in cache
[INFO] extracting crate rw 1.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rw/1.0.0
[INFO] extracting crate rw 1.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rw/1.0.0
[INFO] validating manifest of rw-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 rw-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 rw-1.0.0
[INFO] finished frobbing rw-1.0.0
[INFO] frobbed toml for rw-1.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rw/1.0.0/Cargo.toml
[INFO] started frobbing rw-1.0.0
[INFO] finished frobbing rw-1.0.0
[INFO] frobbed toml for rw-1.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rw/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 rw-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-1/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/rw/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] 17aabc90fcab0f89a213fbb3e8f329d509a51b9bff8f457b8f6651804a59508b
[INFO] running `"docker" "start" "-a" "17aabc90fcab0f89a213fbb3e8f329d509a51b9bff8f457b8f6651804a59508b"`
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling rw v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn pipe(reader: &mut Read, writer: &mut Write) {
[INFO] [stderr]    |                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:14:41
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn pipe(reader: &mut Read, writer: &mut Write) {
[INFO] [stderr]    |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:22
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut out: Box<Write> = match matches.free.first() {
[INFO] [stderr]    |                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "17aabc90fcab0f89a213fbb3e8f329d509a51b9bff8f457b8f6651804a59508b"`
[INFO] running `"docker" "rm" "-f" "17aabc90fcab0f89a213fbb3e8f329d509a51b9bff8f457b8f6651804a59508b"`
[INFO] [stdout] 17aabc90fcab0f89a213fbb3e8f329d509a51b9bff8f457b8f6651804a59508b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/rw/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] 30cc1998166e11f357dd9059d4a3c41ae49c309f03a87f638019b7b2c6713c1b
[INFO] running `"docker" "start" "-a" "30cc1998166e11f357dd9059d4a3c41ae49c309f03a87f638019b7b2c6713c1b"`
[INFO] [stderr]    Compiling rw v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn pipe(reader: &mut Read, writer: &mut Write) {
[INFO] [stderr]    |                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:14:41
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn pipe(reader: &mut Read, writer: &mut Write) {
[INFO] [stderr]    |                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:22
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut out: Box<Write> = match matches.free.first() {
[INFO] [stderr]    |                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "30cc1998166e11f357dd9059d4a3c41ae49c309f03a87f638019b7b2c6713c1b"`
[INFO] running `"docker" "rm" "-f" "30cc1998166e11f357dd9059d4a3c41ae49c309f03a87f638019b7b2c6713c1b"`
[INFO] [stdout] 30cc1998166e11f357dd9059d4a3c41ae49c309f03a87f638019b7b2c6713c1b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/rw/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] b0b7e28dd0ee9834e59805077df4d1df0828e06c915657f7d49bed2f8fdfa7bb
[INFO] running `"docker" "start" "-a" "b0b7e28dd0ee9834e59805077df4d1df0828e06c915657f7d49bed2f8fdfa7bb"`
[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
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rw-b40026e6be60844d
[INFO] running `"docker" "inspect" "b0b7e28dd0ee9834e59805077df4d1df0828e06c915657f7d49bed2f8fdfa7bb"`
[INFO] running `"docker" "rm" "-f" "b0b7e28dd0ee9834e59805077df4d1df0828e06c915657f7d49bed2f8fdfa7bb"`
[INFO] [stdout] b0b7e28dd0ee9834e59805077df4d1df0828e06c915657f7d49bed2f8fdfa7bb