[INFO] crate gibbon 0.1.1 is already in cache
[INFO] extracting crate gibbon 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/gibbon/0.1.1
[INFO] extracting crate gibbon 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gibbon/0.1.1
[INFO] validating manifest of gibbon-0.1.1 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 gibbon-0.1.1 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 gibbon-0.1.1
[INFO] finished frobbing gibbon-0.1.1
[INFO] frobbed toml for gibbon-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/gibbon/0.1.1/Cargo.toml
[INFO] started frobbing gibbon-0.1.1
[INFO] finished frobbing gibbon-0.1.1
[INFO] frobbed toml for gibbon-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gibbon/0.1.1/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 gibbon-0.1.1 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gibbon/0.1.1:/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] e4e8150e7393898f54e7f0d3ce3cf1ab30f901863fbe045b44f9537601795c6f
[INFO] running `"docker" "start" "-a" "e4e8150e7393898f54e7f0d3ce3cf1ab30f901863fbe045b44f9537601795c6f"`
[INFO] [stderr]    Compiling gibbon v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/vec_stream.rs:85:22
[INFO] [stderr]    |
[INFO] [stderr] 85 |                 Some((self.bit_vector[self.index] >> (remaining_bits_current_word - count) & mask))
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:30:54
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn push(&mut self, number: u64, writer: &mut Writer) {
[INFO] [stderr]    |                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[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/lib.rs:84:41
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn next(&mut self, reader: &mut Reader) -> Option<u64> {
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:201:54
[INFO] [stderr]     |
[INFO] [stderr] 201 |     pub fn push(&mut self, number: f64, writer: &mut Writer) {
[INFO] [stderr]     |                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:264:54
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub fn push(&mut self, number: f64, writer: &mut Writer) {
[INFO] [stderr]     |                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:350:37
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn next(&mut self, reader: &mut Reader) -> Option<f64> {
[INFO] [stderr]     |                                     ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:433:70
[INFO] [stderr]     |
[INFO] [stderr] 433 |     pub fn push(&mut self, timestamp: u64, number: f64, writer: &mut Writer) {
[INFO] [stderr]     |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "e4e8150e7393898f54e7f0d3ce3cf1ab30f901863fbe045b44f9537601795c6f"`
[INFO] running `"docker" "rm" "-f" "e4e8150e7393898f54e7f0d3ce3cf1ab30f901863fbe045b44f9537601795c6f"`
[INFO] [stdout] e4e8150e7393898f54e7f0d3ce3cf1ab30f901863fbe045b44f9537601795c6f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gibbon/0.1.1:/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] 65773d925e71e3858f23631b12c236bb01cc1595f4ea913197d58400dd42edff
[INFO] running `"docker" "start" "-a" "65773d925e71e3858f23631b12c236bb01cc1595f4ea913197d58400dd42edff"`
[INFO] [stderr]    Compiling gibbon v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/vec_stream.rs:85:22
[INFO] [stderr]    |
[INFO] [stderr] 85 |                 Some((self.bit_vector[self.index] >> (remaining_bits_current_word - count) & mask))
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:30:54
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn push(&mut self, number: u64, writer: &mut Writer) {
[INFO] [stderr]    |                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[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/lib.rs:84:41
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn next(&mut self, reader: &mut Reader) -> Option<u64> {
[INFO] [stderr]    |                                         ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:201:54
[INFO] [stderr]     |
[INFO] [stderr] 201 |     pub fn push(&mut self, number: f64, writer: &mut Writer) {
[INFO] [stderr]     |                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:264:54
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub fn push(&mut self, number: f64, writer: &mut Writer) {
[INFO] [stderr]     |                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:350:37
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn next(&mut self, reader: &mut Reader) -> Option<f64> {
[INFO] [stderr]     |                                     ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:433:70
[INFO] [stderr]     |
[INFO] [stderr] 433 |     pub fn push(&mut self, timestamp: u64, number: f64, writer: &mut Writer) {
[INFO] [stderr]     |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `"docker" "inspect" "65773d925e71e3858f23631b12c236bb01cc1595f4ea913197d58400dd42edff"`
[INFO] running `"docker" "rm" "-f" "65773d925e71e3858f23631b12c236bb01cc1595f4ea913197d58400dd42edff"`
[INFO] [stdout] 65773d925e71e3858f23631b12c236bb01cc1595f4ea913197d58400dd42edff
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gibbon/0.1.1:/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] 3a20fad4abf7a98324f6ab67a659cac4462c8aa0319d05386a98ecc81c9c0a65
[INFO] running `"docker" "start" "-a" "3a20fad4abf7a98324f6ab67a659cac4462c8aa0319d05386a98ecc81c9c0a65"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gibbon-34603967c58529e1
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::all_significant_bits ... ok
[INFO] [stdout] test tests::fuzzer ... ok
[INFO] [stdout] test tests::all_zeros ... ok
[INFO] [stdout] test tests::fuzzer_vec_int ... ok
[INFO] [stdout] test tests::int_all_steps ... ok
[INFO] [stdout] test tests::int_less_than_64 ... ok
[INFO] [stdout] test tests::all_zeros_int ... ok
[INFO] [stdout] test tests::new_window ... ok
[INFO] [stdout] test tests::reuse_window ... ok
[INFO] [stdout] test tests::time_and_value ... ok
[INFO] [stdout] test vec_stream::tests::read_empty_vector ... ok
[INFO] [stdout] test tests::fuzzer_vec ... ok
[INFO] [stdout] test tests::many_leading_decimals ... ok
[INFO] [stdout] test vec_stream::tests::write_to_second_word_unaligned ... ok
[INFO] [stdout] test vec_stream::tests::write_to_second_word_aligned ... ok
[INFO] [stdout] test vec_stream::tests::write_to_first_word ... ok
[INFO] [stdout] test vec_stream::tests::write_nothing ... ok
[INFO] [stdout] test vec_stream::tests::read_unaligned_word ... ok
[INFO] [stdout] test vec_stream::tests::read_first_word ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gibbon
[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" "3a20fad4abf7a98324f6ab67a659cac4462c8aa0319d05386a98ecc81c9c0a65"`
[INFO] running `"docker" "rm" "-f" "3a20fad4abf7a98324f6ab67a659cac4462c8aa0319d05386a98ecc81c9c0a65"`
[INFO] [stdout] 3a20fad4abf7a98324f6ab67a659cac4462c8aa0319d05386a98ecc81c9c0a65