[INFO] cloning repository https://github.com/David-Factor/red
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/David-Factor/red" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavid-Factor%2Fred"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavid-Factor%2Fred'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64b7db3c70c6639b128c15e94aea002e5b8efd77
[INFO] checking David-Factor/red against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavid-Factor%2Fred" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/David-Factor/red on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/David-Factor/red
[INFO] finished tweaking git repo https://github.com/David-Factor/red
[INFO] tweaked toml for git repo https://github.com/David-Factor/red written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/David-Factor/red already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa6bf921a5f2fe07f0eacdd4c190cb8d831dbf57bb75afbbc9c1b389ca419abc
[INFO] running `"docker" "start" "-a" "aa6bf921a5f2fe07f0eacdd4c190cb8d831dbf57bb75afbbc9c1b389ca419abc"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking red v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `assert_number`
[INFO] [stderr]   --> src/typecheck.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn assert_number(path: Path, received: Type) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assert_text`
[INFO] [stderr]   --> src/typecheck.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn assert_text(path: Path, received: Type) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `boundVar` should have a snake case name
[INFO] [stderr]   --> src/ast.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub boundVar: String,
[INFO] [stderr]    |         ^^^^^^^^ help: convert the identifier to snake case: `bound_var`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assert_number`
[INFO] [stderr]   --> src/typecheck.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn assert_number(path: Path, received: Type) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assert_text`
[INFO] [stderr]   --> src/typecheck.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn assert_text(path: Path, received: Type) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `boundVar` should have a snake case name
[INFO] [stderr]   --> src/ast.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub boundVar: String,
[INFO] [stderr]    |         ^^^^^^^^ help: convert the identifier to snake case: `bound_var`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `if_`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let if_ = r#"{"name": "if",
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_if_`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `if_`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let if_ = r#"{"name": "if",
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_if_`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.29s
[INFO] running `"docker" "inspect" "aa6bf921a5f2fe07f0eacdd4c190cb8d831dbf57bb75afbbc9c1b389ca419abc"`
[INFO] running `"docker" "rm" "-f" "aa6bf921a5f2fe07f0eacdd4c190cb8d831dbf57bb75afbbc9c1b389ca419abc"`
[INFO] [stdout] aa6bf921a5f2fe07f0eacdd4c190cb8d831dbf57bb75afbbc9c1b389ca419abc