[INFO] crate netstring 0.4.1 is already in cache
[INFO] extracting crate netstring 0.4.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/netstring/0.4.1
[INFO] extracting crate netstring 0.4.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/netstring/0.4.1
[INFO] validating manifest of netstring-0.4.1 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 netstring-0.4.1 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 netstring-0.4.1
[INFO] finished frobbing netstring-0.4.1
[INFO] frobbed toml for netstring-0.4.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/netstring/0.4.1/Cargo.toml
[INFO] started frobbing netstring-0.4.1
[INFO] finished frobbing netstring-0.4.1
[INFO] frobbed toml for netstring-0.4.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/netstring/0.4.1/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 netstring-0.4.1 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/netstring/0.4.1:/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] f975442d27f051e8d5647158716288c97d21bab4b1dfa210f257ddb59c89e2e7
[INFO] running `"docker" "start" "-a" "f975442d27f051e8d5647158716288c97d21bab4b1dfa210f257ddb59c89e2e7"`
[INFO] [stderr]    Compiling netstring v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/channel.rs:190:32
[INFO] [stderr]     |
[INFO] [stderr] 190 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/channel.rs:174:27
[INFO] [stderr]     |
[INFO] [stderr] 174 |                 match err.cause() {
[INFO] [stderr]     |                           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "f975442d27f051e8d5647158716288c97d21bab4b1dfa210f257ddb59c89e2e7"`
[INFO] running `"docker" "rm" "-f" "f975442d27f051e8d5647158716288c97d21bab4b1dfa210f257ddb59c89e2e7"`
[INFO] [stdout] f975442d27f051e8d5647158716288c97d21bab4b1dfa210f257ddb59c89e2e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/netstring/0.4.1:/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] eed40f1d70ab6fdbf648af8068e74c44c655eceafc68c2e184205afbc5fd1e12
[INFO] running `"docker" "start" "-a" "eed40f1d70ab6fdbf648af8068e74c44c655eceafc68c2e184205afbc5fd1e12"`
[INFO] [stderr]    Compiling netstring v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/channel.rs:190:32
[INFO] [stderr]     |
[INFO] [stderr] 190 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/channel.rs:174:27
[INFO] [stderr]     |
[INFO] [stderr] 174 |                 match err.cause() {
[INFO] [stderr]     |                           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "eed40f1d70ab6fdbf648af8068e74c44c655eceafc68c2e184205afbc5fd1e12"`
[INFO] running `"docker" "rm" "-f" "eed40f1d70ab6fdbf648af8068e74c44c655eceafc68c2e184205afbc5fd1e12"`
[INFO] [stdout] eed40f1d70ab6fdbf648af8068e74c44c655eceafc68c2e184205afbc5fd1e12
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/netstring/0.4.1:/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] 368a94eaa4c4761ffecf9911074610a5e1661e574242460e6782bc8a0a201f8b
[INFO] running `"docker" "start" "-a" "368a94eaa4c4761ffecf9911074610a5e1661e574242460e6782bc8a0a201f8b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/netstring-a7da69f53be0090f
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::basic_read ... ok
[INFO] [stdout] test tests::basic_write ... ok
[INFO] [stdout] test channel::tests::send_last ... ok
[INFO] [stdout] test tests::multiple ... ok
[INFO] [stdout] test channel::tests::send ... ok
[INFO] [stdout] test channel::tests::reader ... ok
[INFO] [stdout] test tests::invalid_delimiter ... ok
[INFO] [stdout] test tests::longer ... ok
[INFO] [stderr]    Doc-tests netstring
[INFO] [stdout] test tests::shorter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/channel.rs - channel::Channel::send_last (line 146) ... 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" "368a94eaa4c4761ffecf9911074610a5e1661e574242460e6782bc8a0a201f8b"`
[INFO] running `"docker" "rm" "-f" "368a94eaa4c4761ffecf9911074610a5e1661e574242460e6782bc8a0a201f8b"`
[INFO] [stdout] 368a94eaa4c4761ffecf9911074610a5e1661e574242460e6782bc8a0a201f8b