[INFO] crate rivet 0.0.1 is already in cache
[INFO] extracting crate rivet 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/rivet/0.0.1
[INFO] extracting crate rivet 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rivet/0.0.1
[INFO] validating manifest of rivet-0.0.1 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 rivet-0.0.1 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 rivet-0.0.1
[INFO] finished frobbing rivet-0.0.1
[INFO] frobbed toml for rivet-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rivet/0.0.1/Cargo.toml
[INFO] started frobbing rivet-0.0.1
[INFO] finished frobbing rivet-0.0.1
[INFO] frobbed toml for rivet-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rivet/0.0.1/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 rivet-0.0.1 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rivet/0.0.1:/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] 349a51763e0483ca1789ffd1c7cfd3a63af7e90326ac9bd016bc3875424b6055
[INFO] running `"docker" "start" "-a" "349a51763e0483ca1789ffd1c7cfd3a63af7e90326ac9bd016bc3875424b6055"`
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling string-interner v0.6.3
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling rivet v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / /// This is kind of hacky; doesn't do special characters, escaped quotes, etc
[INFO] [stderr] 68 | | /// but fine for now.
[INFO] [stderr]    | |_____________________^
[INFO] [stderr] 69 | / named!(lex_string(&str) -> Token,
[INFO] [stderr] 70 | |     map!(delimited!(tag!("\""), is_not_s!("\""), tag!("\"")),
[INFO] [stderr] 71 | |         |s| Token::String(s.to_string()))
[INFO] [stderr] 72 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | / /// This is also hacky 'cause it doesn't actually recognize any special
[INFO] [stderr] 75 | | /// THINGS like backslashes, numbers, etc; basically if something doesn't
[INFO] [stderr] 76 | | /// match any other token type then it's a valid word.
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr] 77 | / named!(lex_word(&str) -> Token, do_parse!(
[INFO] [stderr] 78 | |     s: take_till_s!(char::is_whitespace) >>
[INFO] [stderr] 79 | |         (Token::Id(s.to_string()))
[INFO] [stderr] 80 | | ));
[INFO] [stderr]    | |___- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/builtins.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::*`
[INFO] [stderr]   --> src/lexer.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 | use nom::*;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/vm.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_id`
[INFO] [stderr]   --> src/lexer.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn is_id(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_int`
[INFO] [stderr]   --> src/vm.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn get_int(&self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_block`
[INFO] [stderr]   --> src/vm.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn get_block(&self) -> Option<&[Ast]> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_symbol`
[INFO] [stderr]   --> src/vm.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn get_symbol(&self) -> Option<&str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `quote`
[INFO] [stderr]   --> src/vm.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn quote(&self) -> Ast {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.46s
[INFO] running `"docker" "inspect" "349a51763e0483ca1789ffd1c7cfd3a63af7e90326ac9bd016bc3875424b6055"`
[INFO] running `"docker" "rm" "-f" "349a51763e0483ca1789ffd1c7cfd3a63af7e90326ac9bd016bc3875424b6055"`
[INFO] [stdout] 349a51763e0483ca1789ffd1c7cfd3a63af7e90326ac9bd016bc3875424b6055
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rivet/0.0.1:/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] 2d0d425406e40a9ab46fa4a0835e7357aecbea94455cca320506062058ccb350
[INFO] running `"docker" "start" "-a" "2d0d425406e40a9ab46fa4a0835e7357aecbea94455cca320506062058ccb350"`
[INFO] [stderr]    Compiling rivet v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / /// This is kind of hacky; doesn't do special characters, escaped quotes, etc
[INFO] [stderr] 68 | | /// but fine for now.
[INFO] [stderr]    | |_____________________^
[INFO] [stderr] 69 | / named!(lex_string(&str) -> Token,
[INFO] [stderr] 70 | |     map!(delimited!(tag!("\""), is_not_s!("\""), tag!("\"")),
[INFO] [stderr] 71 | |         |s| Token::String(s.to_string()))
[INFO] [stderr] 72 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lexer.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | / /// This is also hacky 'cause it doesn't actually recognize any special
[INFO] [stderr] 75 | | /// THINGS like backslashes, numbers, etc; basically if something doesn't
[INFO] [stderr] 76 | | /// match any other token type then it's a valid word.
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr] 77 | / named!(lex_word(&str) -> Token, do_parse!(
[INFO] [stderr] 78 | |     s: take_till_s!(char::is_whitespace) >>
[INFO] [stderr] 79 | |         (Token::Id(s.to_string()))
[INFO] [stderr] 80 | | ));
[INFO] [stderr]    | |___- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/builtins.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::*`
[INFO] [stderr]   --> src/lexer.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 | use nom::*;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/vm.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vm::Value::*`
[INFO] [stderr]    --> src/vm.rs:304:9
[INFO] [stderr]     |
[INFO] [stderr] 304 |     use vm::Value::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `builtins`
[INFO] [stderr]    --> src/vm.rs:305:9
[INFO] [stderr]     |
[INFO] [stderr] 305 |     use builtins;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_id`
[INFO] [stderr]   --> src/lexer.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn is_id(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_int`
[INFO] [stderr]   --> src/vm.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn get_int(&self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_block`
[INFO] [stderr]   --> src/vm.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn get_block(&self) -> Option<&[Ast]> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_symbol`
[INFO] [stderr]   --> src/vm.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn get_symbol(&self) -> Option<&str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `quote`
[INFO] [stderr]   --> src/vm.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn quote(&self) -> Ast {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "2d0d425406e40a9ab46fa4a0835e7357aecbea94455cca320506062058ccb350"`
[INFO] running `"docker" "rm" "-f" "2d0d425406e40a9ab46fa4a0835e7357aecbea94455cca320506062058ccb350"`
[INFO] [stdout] 2d0d425406e40a9ab46fa4a0835e7357aecbea94455cca320506062058ccb350
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rivet/0.0.1:/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] 7be88a471c88e5ce4fdd2db0b80e834bd4b079570d670df28304d0251feaf612
[INFO] running `"docker" "start" "-a" "7be88a471c88e5ce4fdd2db0b80e834bd4b079570d670df28304d0251feaf612"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rivet-cfeb3862f812b067
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test parser::tests::test_expr ... ok
[INFO] [stdout] test lexer::tests::test_tokenize_str ... ok
[INFO] [stdout] test lexer::tests::test_tokenize_comment ... ok
[INFO] [stdout] test lexer::tests::test_tokenize_words ... ok
[INFO] [stdout] test parser::tests::test_parse_int ... ok
[INFO] [stdout] test parser::tests::test_parse_bool ... ok
[INFO] [stdout] test parser::tests::test_parse_id ... ok
[INFO] [stdout] test parser::tests::test_block ... ok
[INFO] [stdout] test parser::tests::test_quote ... ok
[INFO] [stdout] test parser::tests::test_parse_string ... ok
[INFO] [stdout] test lexer::tests::test_tokenize_delim ... ok
[INFO] [stdout] test lexer::tests::test_tokenize_int ... ok
[INFO] [stdout] test lexer::tests::test_lex_all ... ok
[INFO] [stdout] test parser::tests::test_lex_and_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rivet-ec8fdda85c6191e2
[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]    Doc-tests rivet
[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" "7be88a471c88e5ce4fdd2db0b80e834bd4b079570d670df28304d0251feaf612"`
[INFO] running `"docker" "rm" "-f" "7be88a471c88e5ce4fdd2db0b80e834bd4b079570d670df28304d0251feaf612"`
[INFO] [stdout] 7be88a471c88e5ce4fdd2db0b80e834bd4b079570d670df28304d0251feaf612