[INFO] cloning repository https://github.com/takeshiD/tkcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takeshiD/tkcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtakeshiD%2Ftkcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtakeshiD%2Ftkcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67dca88c314b8a6b57c85dda1b5209eebd5f7a90
[INFO] checking takeshiD/tkcc against try#b4c55082edd8dec08ce8af276d7054d9c4db20c4 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtakeshiD%2Ftkcc" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/takeshiD/tkcc
[INFO] finished tweaking git repo https://github.com/takeshiD/tkcc
[INFO] tweaked toml for git repo https://github.com/takeshiD/tkcc written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/takeshiD/tkcc on toolchain b4c55082edd8dec08ce8af276d7054d9c4db20c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/takeshiD/tkcc 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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom-language v0.1.0
[INFO] [stderr]   Downloaded nom_locate v5.0.0
[INFO] [stderr]   Downloaded bytecount v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9f1a6ee4a9fa91cd2d07b86785caa123971558faf5550918239dd1860e215d4
[INFO] running `Command { std: "docker" "start" "-a" "c9f1a6ee4a9fa91cd2d07b86785caa123971558faf5550918239dd1860e215d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9f1a6ee4a9fa91cd2d07b86785caa123971558faf5550918239dd1860e215d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9f1a6ee4a9fa91cd2d07b86785caa123971558faf5550918239dd1860e215d4", kill_on_drop: false }`
[INFO] [stdout] c9f1a6ee4a9fa91cd2d07b86785caa123971558faf5550918239dd1860e215d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d747fbb97f8669b004be8564ac05914561db3b59cfd0ce76b6cd1f5349ad09a
[INFO] running `Command { std: "docker" "start" "-a" "8d747fbb97f8669b004be8564ac05914561db3b59cfd0ce76b6cd1f5349ad09a", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking bytecount v0.6.9
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]     Checking nom_locate v5.0.0
[INFO] [stderr]     Checking nom-language v0.1.0
[INFO] [stderr]     Checking tkcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         Ok((res, stmts)) => {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `If`, `Increment`, and `Decrement` are never constructed
[INFO] [stdout]   --> src/parser.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum ExprEnum<'src> {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 26 |     If(
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     Increment,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 39 |     Decrement,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExprEnum` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/parser.rs:75:5
[INFO] [stdout]     |
[INFO] [stdout]  73 | pub enum Statement<'src> {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout]  74 |     Expression(Expression<'src>),
[INFO] [stdout]  75 |     VarDef {
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  80 |     VarAssign {
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     For {
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout]  92 |     Break,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]  93 |     Continue,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]  94 |     FnDef {
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     Return(Expression<'src>),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 101 |     Yield(Expression<'src>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_offset` is never used
[INFO] [stdout]    --> src/parser.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn calc_offset<'a>(i: Span<'a>, r: Span<'a>) -> Span<'a> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         Ok((res, stmts)) => {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `If`, `Increment`, and `Decrement` are never constructed
[INFO] [stdout]   --> src/parser.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum ExprEnum<'src> {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 26 |     If(
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     Increment,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 39 |     Decrement,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExprEnum` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/parser.rs:75:5
[INFO] [stdout]     |
[INFO] [stdout]  73 | pub enum Statement<'src> {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout]  74 |     Expression(Expression<'src>),
[INFO] [stdout]  75 |     VarDef {
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  80 |     VarAssign {
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     For {
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout]  92 |     Break,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]  93 |     Continue,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]  94 |     FnDef {
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     Return(Expression<'src>),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 101 |     Yield(Expression<'src>),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_offset` is never used
[INFO] [stdout]    --> src/parser.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn calc_offset<'a>(i: Span<'a>, r: Span<'a>) -> Span<'a> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `Command { std: "docker" "inspect" "8d747fbb97f8669b004be8564ac05914561db3b59cfd0ce76b6cd1f5349ad09a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d747fbb97f8669b004be8564ac05914561db3b59cfd0ce76b6cd1f5349ad09a", kill_on_drop: false }`
[INFO] [stdout] 8d747fbb97f8669b004be8564ac05914561db3b59cfd0ce76b6cd1f5349ad09a
