[INFO] crate blockchain 0.8.1 is already in cache
[INFO] extracting crate blockchain 0.8.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/blockchain/0.8.1
[INFO] extracting crate blockchain 0.8.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blockchain/0.8.1
[INFO] validating manifest of blockchain-0.8.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of blockchain-0.8.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing blockchain-0.8.1
[INFO] finished frobbing blockchain-0.8.1
[INFO] frobbed toml for blockchain-0.8.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/blockchain/0.8.1/Cargo.toml
[INFO] started frobbing blockchain-0.8.1
[INFO] finished frobbing blockchain-0.8.1
[INFO] frobbed toml for blockchain-0.8.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blockchain/0.8.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing blockchain-0.8.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blockchain/0.8.1:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 23b75b8b05a51664d374369941aa9ae2e319c4b37d178433c28aedb2760db90a
[INFO] running `"docker" "start" "-a" "23b75b8b05a51664d374369941aa9ae2e319c4b37d178433c28aedb2760db90a"`
[INFO] [stderr]    Compiling blockchain v0.8.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/import/mod.rs:16:14
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Backend(Box<stderror::Error>),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[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/import/mod.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Executor(Box<stderror::Error>),
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:46:31
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl StorageExternalities<Box<stderror::Error>> for KeyValueMemoryState {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:47:68
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn read_storage(&self, key: &[u8]) -> Result<Option<Vec<u8>>, Box<stderror::Error>> {
[INFO] [stderr]    |                                                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:66:51
[INFO] [stderr]    |
[INFO] [stderr] 66 | impl AsExternalities<dyn StorageExternalities<Box<stderror::Error>>> for KeyValueMemoryState {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:67:71
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn as_externalities(&mut self) -> &mut (dyn StorageExternalities<Box<stderror::Error>> + 'static) {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "23b75b8b05a51664d374369941aa9ae2e319c4b37d178433c28aedb2760db90a"`
[INFO] running `"docker" "rm" "-f" "23b75b8b05a51664d374369941aa9ae2e319c4b37d178433c28aedb2760db90a"`
[INFO] [stdout] 23b75b8b05a51664d374369941aa9ae2e319c4b37d178433c28aedb2760db90a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blockchain/0.8.1:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] cc37c5a14b9ecf4e76c84e024d2e532ed089b14fdd95e7787166024fcb65f67c
[INFO] running `"docker" "start" "-a" "cc37c5a14b9ecf4e76c84e024d2e532ed089b14fdd95e7787166024fcb65f67c"`
[INFO] [stderr]    Compiling blockchain v0.8.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/import/mod.rs:16:14
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Backend(Box<stderror::Error>),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[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/import/mod.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Executor(Box<stderror::Error>),
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:46:31
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl StorageExternalities<Box<stderror::Error>> for KeyValueMemoryState {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:47:68
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn read_storage(&self, key: &[u8]) -> Result<Option<Vec<u8>>, Box<stderror::Error>> {
[INFO] [stderr]    |                                                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:66:51
[INFO] [stderr]    |
[INFO] [stderr] 66 | impl AsExternalities<dyn StorageExternalities<Box<stderror::Error>>> for KeyValueMemoryState {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/state.rs:67:71
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn as_externalities(&mut self) -> &mut (dyn StorageExternalities<Box<stderror::Error>> + 'static) {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn stderror::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "cc37c5a14b9ecf4e76c84e024d2e532ed089b14fdd95e7787166024fcb65f67c"`
[INFO] running `"docker" "rm" "-f" "cc37c5a14b9ecf4e76c84e024d2e532ed089b14fdd95e7787166024fcb65f67c"`
[INFO] [stdout] cc37c5a14b9ecf4e76c84e024d2e532ed089b14fdd95e7787166024fcb65f67c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blockchain/0.8.1:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 665e699cfa20b72015daab07273236b73b345a1f9ce4b4d3604188e7515246b0
[INFO] running `"docker" "start" "-a" "665e699cfa20b72015daab07273236b73b345a1f9ce4b4d3604188e7515246b0"`
[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/blockchain-dd8fc0f586cfec15
[INFO] [stderr]    Doc-tests blockchain
[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] running `"docker" "inspect" "665e699cfa20b72015daab07273236b73b345a1f9ce4b4d3604188e7515246b0"`
[INFO] running `"docker" "rm" "-f" "665e699cfa20b72015daab07273236b73b345a1f9ce4b4d3604188e7515246b0"`
[INFO] [stdout] 665e699cfa20b72015daab07273236b73b345a1f9ce4b4d3604188e7515246b0