[INFO] updating cached repository ipost/flow_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ipost/flow_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ipost/flow_rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/ipost/flow_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ipost/flow_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ipost/flow_rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ipost/flow_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ipost/flow_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 85497e4e5cad7eeaf2544460152eddb9478f60ef
[INFO] sha for GitHub repo ipost/flow_rs: 85497e4e5cad7eeaf2544460152eddb9478f60ef
[INFO] validating manifest of ipost/flow_rs 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 ipost/flow_rs 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 ipost/flow_rs
[INFO] finished frobbing ipost/flow_rs
[INFO] frobbed toml for ipost/flow_rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/ipost/flow_rs/Cargo.toml
[INFO] started frobbing ipost/flow_rs
[INFO] finished frobbing ipost/flow_rs
[INFO] frobbed toml for ipost/flow_rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ipost/flow_rs/Cargo.toml
[INFO] crate ipost/flow_rs already has a lockfile, it will not be regenerated
[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 ipost/flow_rs 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ipost/flow_rs:/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] 59a50ddaa2856823b8ac143639a5a6c22ce32039cab927ee3f412011e64e25ad
[INFO] running `"docker" "start" "-a" "59a50ddaa2856823b8ac143639a5a6c22ce32039cab927ee3f412011e64e25ad"`
[INFO] [stderr]    Compiling pest v2.1.0
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling flowrs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:87:66
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn dotify_all(mut pairs: Pairs<Rule>, mut id_generator: &mut Box<FnMut() -> String>) -> String {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[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:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:127:28
[INFO] [stderr]     |
[INFO] [stderr] 127 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:168:28
[INFO] [stderr]     |
[INFO] [stderr] 168 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:209:28
[INFO] [stderr]     |
[INFO] [stderr] 209 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:237:28
[INFO] [stderr]     |
[INFO] [stderr] 237 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:256:31
[INFO] [stderr]     |
[INFO] [stderr] 256 | fn make_id_generator() -> Box<FnMut() -> String> {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:288:57
[INFO] [stderr]     |
[INFO] [stderr] 288 | fn get_output_handle(file_path: Option<PathBuf>) -> Box<Write> {
[INFO] [stderr]     |                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.68s
[INFO] running `"docker" "inspect" "59a50ddaa2856823b8ac143639a5a6c22ce32039cab927ee3f412011e64e25ad"`
[INFO] running `"docker" "rm" "-f" "59a50ddaa2856823b8ac143639a5a6c22ce32039cab927ee3f412011e64e25ad"`
[INFO] [stdout] 59a50ddaa2856823b8ac143639a5a6c22ce32039cab927ee3f412011e64e25ad
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ipost/flow_rs:/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] d9ba4324b9e3bdbb21dd3fee71938cc9f9aad8d9e4d46a2a527fea5c18ef5860
[INFO] running `"docker" "start" "-a" "d9ba4324b9e3bdbb21dd3fee71938cc9f9aad8d9e4d46a2a527fea5c18ef5860"`
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling predicates v1.0.0
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling flowrs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:87:66
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn dotify_all(mut pairs: Pairs<Rule>, mut id_generator: &mut Box<FnMut() -> String>) -> String {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[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:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:127:28
[INFO] [stderr]     |
[INFO] [stderr] 127 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:168:28
[INFO] [stderr]     |
[INFO] [stderr] 168 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:209:28
[INFO] [stderr]     |
[INFO] [stderr] 209 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:237:28
[INFO] [stderr]     |
[INFO] [stderr] 237 |     id_generator: &mut Box<FnMut() -> String>,
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:256:31
[INFO] [stderr]     |
[INFO] [stderr] 256 | fn make_id_generator() -> Box<FnMut() -> String> {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:288:57
[INFO] [stderr]     |
[INFO] [stderr] 288 | fn get_output_handle(file_path: Option<PathBuf>) -> Box<Write> {
[INFO] [stderr]     |                                                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.46s
[INFO] running `"docker" "inspect" "d9ba4324b9e3bdbb21dd3fee71938cc9f9aad8d9e4d46a2a527fea5c18ef5860"`
[INFO] running `"docker" "rm" "-f" "d9ba4324b9e3bdbb21dd3fee71938cc9f9aad8d9e4d46a2a527fea5c18ef5860"`
[INFO] [stdout] d9ba4324b9e3bdbb21dd3fee71938cc9f9aad8d9e4d46a2a527fea5c18ef5860
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ipost/flow_rs:/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] 2c41667da6c862a1b85b3c837b5c74094e890c33678821bcefb49990537262ef
[INFO] running `"docker" "start" "-a" "2c41667da6c862a1b85b3c837b5c74094e890c33678821bcefb49990537262ef"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/flowrs-fa37c624a5af3078
[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]      Running /opt/crater/target/debug/deps/test-56ccb59d02968f5e
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test reads_from_stdin ... ok
[INFO] [stdout] test reads_from_file ... ok
[INFO] [stdout] test prints_ast ... ok
[INFO] [stdout] test writes_to_file ... ok
[INFO] [stdout] test writes_to_stdout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2c41667da6c862a1b85b3c837b5c74094e890c33678821bcefb49990537262ef"`
[INFO] running `"docker" "rm" "-f" "2c41667da6c862a1b85b3c837b5c74094e890c33678821bcefb49990537262ef"`
[INFO] [stdout] 2c41667da6c862a1b85b3c837b5c74094e890c33678821bcefb49990537262ef