[INFO] crate bf 0.4.8 is already in cache
[INFO] extracting crate bf 0.4.8 into work/ex/beta-1.38-1/sources/1.37.0/reg/bf/0.4.8
[INFO] extracting crate bf 0.4.8 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bf/0.4.8
[INFO] validating manifest of bf-0.4.8 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 bf-0.4.8 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 bf-0.4.8
[INFO] finished frobbing bf-0.4.8
[INFO] frobbed toml for bf-0.4.8 written to work/ex/beta-1.38-1/sources/1.37.0/reg/bf/0.4.8/Cargo.toml
[INFO] started frobbing bf-0.4.8
[INFO] finished frobbing bf-0.4.8
[INFO] frobbed toml for bf-0.4.8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bf/0.4.8/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 bf-0.4.8 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bf/0.4.8:/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] 0041dfb8a54fe4a8c052384685fb0f0c8a77641815d8968108f340a45eae4f3d
[INFO] running `"docker" "start" "-a" "0041dfb8a54fe4a8c052384685fb0f0c8a77641815d8968108f340a45eae4f3d"`
[INFO] [stderr]    Compiling bf v0.4.8 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rts.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |     input:  &'a mut Read,
[INFO] [stderr]    |                     ^^^^ help: use `dyn`: `dyn Read`
[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/rts.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |     output: &'a mut Write,
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `"docker" "inspect" "0041dfb8a54fe4a8c052384685fb0f0c8a77641815d8968108f340a45eae4f3d"`
[INFO] running `"docker" "rm" "-f" "0041dfb8a54fe4a8c052384685fb0f0c8a77641815d8968108f340a45eae4f3d"`
[INFO] [stdout] 0041dfb8a54fe4a8c052384685fb0f0c8a77641815d8968108f340a45eae4f3d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bf/0.4.8:/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] 54f251d2de3cb644a30271aa99b1be41416269bc66d8e3972948f9b124125d61
[INFO] running `"docker" "start" "-a" "54f251d2de3cb644a30271aa99b1be41416269bc66d8e3972948f9b124125d61"`
[INFO] [stderr]    Compiling bf v0.4.8 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rts.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |     input:  &'a mut Read,
[INFO] [stderr]    |                     ^^^^ help: use `dyn`: `dyn Read`
[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/rts.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |     output: &'a mut Write,
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `parse_program` is imported redundantly
[INFO] [stderr]    --> src/ast/interpreter.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 59  |     use super::*;
[INFO] [stderr]     |         -------- the item `parse_program` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 109 |         use super::super::parser::parse_program;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "54f251d2de3cb644a30271aa99b1be41416269bc66d8e3972948f9b124125d61"`
[INFO] running `"docker" "rm" "-f" "54f251d2de3cb644a30271aa99b1be41416269bc66d8e3972948f9b124125d61"`
[INFO] [stdout] 54f251d2de3cb644a30271aa99b1be41416269bc66d8e3972948f9b124125d61
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bf/0.4.8:/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] 65a8deb50c618e439eaf40b77df277c62becf884571955f90a0a4b023359640d
[INFO] running `"docker" "start" "-a" "65a8deb50c618e439eaf40b77df277c62becf884571955f90a0a4b023359640d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bf-0250d15fd7797266
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test ast::interpreter::tests::assert_no_output ... ok
[INFO] [stdout] test ast::interpreter::tests::assert_output_1 ... ok
[INFO] [stdout] test ast::interpreter::tests::assert_output_0 ... ok
[INFO] [stdout] test ast::interpreter::tests::assert_increment_input ... ok
[INFO] [stdout] test ast::interpreter::tests::assert_increment_loop ... ok
[INFO] [stdout] test ast::parser::tests::empty_loop_parses ... ok
[INFO] [stdout] test ast::parser::tests::comment_is_ignored ... ok
[INFO] [stdout] test ast::parser::tests::all_comment_program_parses ... ok
[INFO] [stdout] test ast::parser::tests::multiple_instructions_parse ... ok
[INFO] [stdout] test ast::parser::tests::nested_loops_parse ... ok
[INFO] [stdout] test ast::parser::tests::empty_program_parses ... ok
[INFO] [stdout] test ast::parser::tests::left_bracket_without_right_is_error ... ok
[INFO] [stdout] test ast::parser::tests::right_bracket_without_left_is_error ... ok
[INFO] [stdout] test ast::parser::tests::single_byte_instructions_parse ... ok
[INFO] [stdout] test ast::interpreter::tests::hello_world ... ok
[INFO] [stdout] test ast::parser::tests::non_empty_loop_parses ... ok
[INFO] [stdout] test ast::parser::tests::trailing_comment_is_ignored ... ok
[INFO] [stdout] test rle::compiler::tests::right_compiles ... ok
[INFO] [stdout] test rle::compiler::tests::three_rights_compile ... ok
[INFO] [stdout] test rle::compiler::tests::two_rights_two_ups_compile ... ok
[INFO] [stdout] test rle::interpreter::tests::hello_world ... ok
[INFO] [stdout] test bytecode::interpreter::tests::hello_world ... ok
[INFO] [stdout] test rle::compiler::tests::loop_compiles ... ok
[INFO] [stdout] test peephole::interpreter::tests::hello_world ... ok
[INFO] [stdout] test state::tests::down_goes_to_255 ... ok
[INFO] [stdout] test state::tests::load_reads ... ok
[INFO] [stdout] test state::tests::longer_sequence_of_actions ... ok
[INFO] [stdout] test state::tests::right_moves_right ... ok
[INFO] [stdout] test state::tests::right_then_left_restores ... ok
[INFO] [stdout] test ast::interpreter::tests::factoring ... ok
[INFO] [stdout] test state::tests::right_to_right_edge_is_okay ... ok
[INFO] [stdout] test state::tests::store_writes ... ok
[INFO] [stdout] test state::tests::up_goes_to_1 ... ok
[INFO] [stdout] test peephole::interpreter::tests::factoring ... ok
[INFO] [stdout] test rle::interpreter::tests::factoring ... ok
[INFO] [stdout] test bytecode::interpreter::tests::factoring ... ok
[INFO] [stdout] test state::tests::right_past_edge_is_error ... ok
[INFO] [stdout] test state::tests::move_left_is_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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/bfi-f333bfa732c2d24a
[INFO] [stderr]    Doc-tests bf
[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" "65a8deb50c618e439eaf40b77df277c62becf884571955f90a0a4b023359640d"`
[INFO] running `"docker" "rm" "-f" "65a8deb50c618e439eaf40b77df277c62becf884571955f90a0a4b023359640d"`
[INFO] [stdout] 65a8deb50c618e439eaf40b77df277c62becf884571955f90a0a4b023359640d