[INFO] updating cached repository jackstanek/skald
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jackstanek/skald
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jackstanek/skald" "work/ex/beta-1.38-1/sources/1.37.0/gh/jackstanek/skald"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jackstanek/skald'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jackstanek/skald" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackstanek/skald"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackstanek/skald'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5cee52d56bcb86db5b9a0e669c655d4b5212e20a
[INFO] sha for GitHub repo jackstanek/skald: 5cee52d56bcb86db5b9a0e669c655d4b5212e20a
[INFO] validating manifest of jackstanek/skald 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 jackstanek/skald 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 jackstanek/skald
[INFO] finished frobbing jackstanek/skald
[INFO] frobbed toml for jackstanek/skald written to work/ex/beta-1.38-1/sources/1.37.0/gh/jackstanek/skald/Cargo.toml
[INFO] started frobbing jackstanek/skald
[INFO] finished frobbing jackstanek/skald
[INFO] frobbed toml for jackstanek/skald written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackstanek/skald/Cargo.toml
[INFO] crate jackstanek/skald 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 jackstanek/skald 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-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackstanek/skald:/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] 1dfe33dc8319ca3afcfd7a7de76e9812c7395ebf7911c5c55bf68dcb908ebbd8
[INFO] running `"docker" "start" "-a" "1dfe33dc8319ca3afcfd7a7de76e9812c7395ebf7911c5c55bf68dcb908ebbd8"`
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling rustyline v4.1.0
[INFO] [stderr]    Compiling skald v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/parse.rs:24:14
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn lex_input(input: &String) -> Result<Vec<Token>, ParseError> {
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]   --> src/parse.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn parse_tokens(tokens: &Vec<Token>) -> Result<Vec<Expr>, ParseError> {
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parse.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut lexed = lex_input(input);
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/parse.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Bool(bool),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Char`
[INFO] [stderr]  --> src/parse.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Char(char)
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.11s
[INFO] running `"docker" "inspect" "1dfe33dc8319ca3afcfd7a7de76e9812c7395ebf7911c5c55bf68dcb908ebbd8"`
[INFO] running `"docker" "rm" "-f" "1dfe33dc8319ca3afcfd7a7de76e9812c7395ebf7911c5c55bf68dcb908ebbd8"`
[INFO] [stdout] 1dfe33dc8319ca3afcfd7a7de76e9812c7395ebf7911c5c55bf68dcb908ebbd8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackstanek/skald:/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] 3589f1b6478acf3c1e601c7abbcc8939b65c32075f81a80b9def827ae9382206
[INFO] running `"docker" "start" "-a" "3589f1b6478acf3c1e601c7abbcc8939b65c32075f81a80b9def827ae9382206"`
[INFO] [stderr]    Compiling skald v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: unexpected end of macro invocation
[INFO] [stderr]   --> src/ast.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         assert_eq!()
[INFO] [stderr]    |         ^^^^^^^^^^^^ missing tokens in macro arguments
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `skald`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3589f1b6478acf3c1e601c7abbcc8939b65c32075f81a80b9def827ae9382206"`
[INFO] running `"docker" "rm" "-f" "3589f1b6478acf3c1e601c7abbcc8939b65c32075f81a80b9def827ae9382206"`
[INFO] [stdout] 3589f1b6478acf3c1e601c7abbcc8939b65c32075f81a80b9def827ae9382206