[INFO] cloning repository https://github.com/jackstanek/skald
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackstanek/skald" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackstanek%2Fskald", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackstanek%2Fskald'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5cee52d56bcb86db5b9a0e669c655d4b5212e20a
[INFO] testing jackstanek/skald against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackstanek%2Fskald" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackstanek/skald on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jackstanek/skald
[INFO] finished tweaking git repo https://github.com/jackstanek/skald
[INFO] tweaked toml for git repo https://github.com/jackstanek/skald written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jackstanek/skald already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61c64a2bb71026fe6717da5ca939d84542214b90aef7393bd7232ad9e8c3fd8a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "61c64a2bb71026fe6717da5ca939d84542214b90aef7393bd7232ad9e8c3fd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61c64a2bb71026fe6717da5ca939d84542214b90aef7393bd7232ad9e8c3fd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61c64a2bb71026fe6717da5ca939d84542214b90aef7393bd7232ad9e8c3fd8a", kill_on_drop: false }`
[INFO] [stdout] 61c64a2bb71026fe6717da5ca939d84542214b90aef7393bd7232ad9e8c3fd8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 042407b55500347781fc4e08592605747aa66e47a23ee4875812ee894a74bec1
[INFO] running `Command { std: "docker" "start" "-a" "042407b55500347781fc4e08592605747aa66e47a23ee4875812ee894a74bec1", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling rustyline v4.1.0
[INFO] [stderr]    Compiling skald v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parse.rs:24:14
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn lex_input(input: &String) -> Result<Vec<Token>, ParseError> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/parse.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn parse_tokens(tokens: &Vec<Token>) -> Result<Vec<Expr>, ParseError> {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parse.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut lexed = lex_input(input);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]  --> src/parse.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Bool(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Char`
[INFO] [stdout]  --> src/parse.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Char(char)
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.57s
[INFO] running `Command { std: "docker" "inspect" "042407b55500347781fc4e08592605747aa66e47a23ee4875812ee894a74bec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "042407b55500347781fc4e08592605747aa66e47a23ee4875812ee894a74bec1", kill_on_drop: false }`
[INFO] [stdout] 042407b55500347781fc4e08592605747aa66e47a23ee4875812ee894a74bec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f4ce92335df48deee08fd1991007fd2033ec6b9a7ab3182231a5fb3d5d05b56
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f4ce92335df48deee08fd1991007fd2033ec6b9a7ab3182231a5fb3d5d05b56", kill_on_drop: false }`
[INFO] [stderr]    Compiling skald v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parse.rs:24:14
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn lex_input(input: &String) -> Result<Vec<Token>, ParseError> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/parse.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn parse_tokens(tokens: &Vec<Token>) -> Result<Vec<Expr>, ParseError> {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parse.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut lexed = lex_input(input);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]  --> src/parse.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Bool(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Char`
[INFO] [stdout]  --> src/parse.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Char(char)
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected end of macro invocation
[INFO] [stdout]   --> src/ast.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         assert_eq!()
[INFO] [stdout]    |         ^^^^^^^^^^^^ missing tokens in macro arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `skald`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1f4ce92335df48deee08fd1991007fd2033ec6b9a7ab3182231a5fb3d5d05b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4ce92335df48deee08fd1991007fd2033ec6b9a7ab3182231a5fb3d5d05b56", kill_on_drop: false }`
[INFO] [stdout] 1f4ce92335df48deee08fd1991007fd2033ec6b9a7ab3182231a5fb3d5d05b56
