[INFO] cloning repository https://github.com/pepsi/transform
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pepsi/transform" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpepsi%2Ftransform", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpepsi%2Ftransform'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b203b25a077d9549035d89c53b40d4c8a0b69ab
[INFO] checking pepsi/transform against try#ef5216c337126ffe24d074826f4023948c4a9b8e for pr-137033
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpepsi%2Ftransform" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pepsi/transform on toolchain ef5216c337126ffe24d074826f4023948c4a9b8e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pepsi/transform
[INFO] finished tweaking git repo https://github.com/pepsi/transform
[INFO] tweaked toml for git repo https://github.com/pepsi/transform written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pepsi/transform already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] checking pepsi/transform against try#ef5216c337126ffe24d074826f4023948c4a9b8e for pr-137033
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpepsi%2Ftransform" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pepsi/transform on toolchain ef5216c337126ffe24d074826f4023948c4a9b8e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pepsi/transform
[INFO] finished tweaking git repo https://github.com/pepsi/transform
[INFO] tweaked toml for git repo https://github.com/pepsi/transform written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pepsi/transform already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41d38007a2db216b1e128a8333c4d5db7017c453bfd1b9934a0b34aec6438c43
[INFO] running `Command { std: "docker" "start" "-a" "41d38007a2db216b1e128a8333c4d5db7017c453bfd1b9934a0b34aec6438c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41d38007a2db216b1e128a8333c4d5db7017c453bfd1b9934a0b34aec6438c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d38007a2db216b1e128a8333c4d5db7017c453bfd1b9934a0b34aec6438c43", kill_on_drop: false }`
[INFO] [stdout] 41d38007a2db216b1e128a8333c4d5db7017c453bfd1b9934a0b34aec6438c43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8be5f0072a85d352d9e16d3883d015bac023316f18cb401f42885c490b7bf69c
[INFO] running `Command { std: "docker" "start" "-a" "8be5f0072a85d352d9e16d3883d015bac023316f18cb401f42885c490b7bf69c", kill_on_drop: false }`
[INFO] [stderr]     Checking transform v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Const`, `LambdaFunction`, and `Block` are never constructed
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | enum Branch<'br> {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     Const(i32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     LambdaFunction {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Block(Vec<Branch<'br>>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Branch` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flatten_lambdas` is never read
[INFO] [stdout]   --> src/main.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | struct Tree<'tr> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 78 |     branches: Vec<Branch<'tr>>,
[INFO] [stdout] 79 |     flatten_lambdas: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Const`, `LambdaFunction`, and `Block` are never constructed
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | enum Branch<'br> {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     Const(i32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     LambdaFunction {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Block(Vec<Branch<'br>>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Branch` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flatten_lambdas` is never read
[INFO] [stdout]   --> src/main.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | struct Tree<'tr> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 78 |     branches: Vec<Branch<'tr>>,
[INFO] [stdout] 79 |     flatten_lambdas: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "8be5f0072a85d352d9e16d3883d015bac023316f18cb401f42885c490b7bf69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be5f0072a85d352d9e16d3883d015bac023316f18cb401f42885c490b7bf69c", kill_on_drop: false }`
[INFO] [stdout] 8be5f0072a85d352d9e16d3883d015bac023316f18cb401f42885c490b7bf69c