[INFO] crate rustop 1.0.4 is already in cache
[INFO] extracting crate rustop 1.0.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/rustop/1.0.4
[INFO] extracting crate rustop 1.0.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustop/1.0.4
[INFO] validating manifest of rustop-1.0.4 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 rustop-1.0.4 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 rustop-1.0.4
[INFO] finished frobbing rustop-1.0.4
[INFO] frobbed toml for rustop-1.0.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rustop/1.0.4/Cargo.toml
[INFO] started frobbing rustop-1.0.4
[INFO] finished frobbing rustop-1.0.4
[INFO] frobbed toml for rustop-1.0.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustop/1.0.4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rustop-1.0.4 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-6/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/rustop/1.0.4:/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] 603fd6861278b44a277a6f890d190862d2767ad5004e17a0a60c76736c4e6ee0
[INFO] running `"docker" "start" "-a" "603fd6861278b44a277a6f890d190862d2767ad5004e17a0a60c76736c4e6ee0"`
[INFO] [stderr]    Compiling rustop v1.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:294:20
[INFO] [stderr]     |
[INFO] [stderr] 294 |     ParseError(Box<StdError>),
[INFO] [stderr]     |                    ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/rustop.rs:318:32
[INFO] [stderr]     |
[INFO] [stderr] 318 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:571:49
[INFO] [stderr]     |
[INFO] [stderr] 571 |             .map_err(|err| Box::new(err) as Box<StdError>)
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:596:49
[INFO] [stderr]     |
[INFO] [stderr] 596 |             .map_err(|err| Box::new(err) as Box<StdError>)
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:643:53
[INFO] [stderr]     |
[INFO] [stderr] 643 |                 .map_err(|err| Box::new(err) as Box<StdError>)
[INFO] [stderr]     |                                                     ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:667:14
[INFO] [stderr]     |
[INFO] [stderr] 667 |     var: Box<CommandLineArgument + 'a>,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CommandLineArgument + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:695:14
[INFO] [stderr]     |
[INFO] [stderr] 695 |     var: Box<CommandLineArgument + 'a>,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CommandLineArgument + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/rustop.rs:1186:44
[INFO] [stderr]      |
[INFO] [stderr] 1186 |     pub fn write_usage(&self, output: &mut std::io::Write) -> Result<(), std::io::Error> {
[INFO] [stderr]      |                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `"docker" "inspect" "603fd6861278b44a277a6f890d190862d2767ad5004e17a0a60c76736c4e6ee0"`
[INFO] running `"docker" "rm" "-f" "603fd6861278b44a277a6f890d190862d2767ad5004e17a0a60c76736c4e6ee0"`
[INFO] [stdout] 603fd6861278b44a277a6f890d190862d2767ad5004e17a0a60c76736c4e6ee0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/rustop/1.0.4:/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] 774cfa4dae7a068fc884c1332d67dfaa1aa39637d9a3c562693300b47d3b8962
[INFO] running `"docker" "start" "-a" "774cfa4dae7a068fc884c1332d67dfaa1aa39637d9a3c562693300b47d3b8962"`
[INFO] [stderr]    Compiling rustop v1.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:294:20
[INFO] [stderr]     |
[INFO] [stderr] 294 |     ParseError(Box<StdError>),
[INFO] [stderr]     |                    ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/rustop.rs:318:32
[INFO] [stderr]     |
[INFO] [stderr] 318 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:571:49
[INFO] [stderr]     |
[INFO] [stderr] 571 |             .map_err(|err| Box::new(err) as Box<StdError>)
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:596:49
[INFO] [stderr]     |
[INFO] [stderr] 596 |             .map_err(|err| Box::new(err) as Box<StdError>)
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:643:53
[INFO] [stderr]     |
[INFO] [stderr] 643 |                 .map_err(|err| Box::new(err) as Box<StdError>)
[INFO] [stderr]     |                                                     ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:667:14
[INFO] [stderr]     |
[INFO] [stderr] 667 |     var: Box<CommandLineArgument + 'a>,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CommandLineArgument + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rustop.rs:695:14
[INFO] [stderr]     |
[INFO] [stderr] 695 |     var: Box<CommandLineArgument + 'a>,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CommandLineArgument + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/rustop.rs:1186:44
[INFO] [stderr]      |
[INFO] [stderr] 1186 |     pub fn write_usage(&self, output: &mut std::io::Write) -> Result<(), std::io::Error> {
[INFO] [stderr]      |                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.71s
[INFO] running `"docker" "inspect" "774cfa4dae7a068fc884c1332d67dfaa1aa39637d9a3c562693300b47d3b8962"`
[INFO] running `"docker" "rm" "-f" "774cfa4dae7a068fc884c1332d67dfaa1aa39637d9a3c562693300b47d3b8962"`
[INFO] [stdout] 774cfa4dae7a068fc884c1332d67dfaa1aa39637d9a3c562693300b47d3b8962
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/rustop/1.0.4:/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] 785e620cfa9b0eed5d0272cebc80573397e088f20cc1414375706803b4663705
[INFO] running `"docker" "start" "-a" "785e620cfa9b0eed5d0272cebc80573397e088f20cc1414375706803b4663705"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustop-a2f109b3b005b114
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test test_ambiguous_auto_shorts ... ok
[INFO] [stdout] test test_ambiguous_forced_shorts ... ok
[INFO] [stdout] test test_ambiguous_prefix ... ok
[INFO] [stdout] test test_long_opt ... ok
[INFO] [stdout] test test_long_flag ... ok
[INFO] [stdout] test test_multi_param ... ok
[INFO] [stdout] test test_negative_flag ... ok
[INFO] [stdout] test test_exact_prefix ... ok
[INFO] [stdout] test test_no_dash_auto_short ... ok
[INFO] [stdout] test test_no_auto_shorts_on_shorts ... ok
[INFO] [stdout] test test_multi_opts ... ok
[INFO] [stdout] test test_optional_nodefault ... ok
[INFO] [stdout] test test_required_default ... ok
[INFO] [stdout] test test_prefix ... ok
[INFO] [stdout] test test_optional_default ... ok
[INFO] [stdout] test test_short_flag ... ok
[INFO] [stdout] test test_missing_args ... ok
[INFO] [stdout] test test_long_opt_missing ... ok
[INFO] [stdout] test test_no_auto_shorts ... ok
[INFO] [stdout] test test_multi_opts_multiple ... ok
[INFO] [stdout] test test_unknown_long ... ok
[INFO] [stdout] test test_unknown_short ... ok
[INFO] [stdout] test test_required_nodefault ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustop
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/rustop.rs -  (line 162) ... ok
[INFO] [stdout] test src/rustop.rs -  (line 195) ... ok
[INFO] [stdout] test src/rustop.rs -  (line 136) ... ok
[INFO] [stdout] test src/rustop.rs -  (line 176) ... ok
[INFO] [stdout] test src/rustop.rs -  (line 150) ... ok
[INFO] [stdout] test src/rustop.rs -  (line 218) ... ok
[INFO] [stdout] test src/rustop.rs -  (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "785e620cfa9b0eed5d0272cebc80573397e088f20cc1414375706803b4663705"`
[INFO] running `"docker" "rm" "-f" "785e620cfa9b0eed5d0272cebc80573397e088f20cc1414375706803b4663705"`
[INFO] [stdout] 785e620cfa9b0eed5d0272cebc80573397e088f20cc1414375706803b4663705