[INFO] cloning repository https://github.com/jegkanikkeheddemike/klang-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jegkanikkeheddemike/klang-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjegkanikkeheddemike%2Fklang-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjegkanikkeheddemike%2Fklang-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b61d365410568342bfc48e1c00f7ad865eb47ce
[INFO] checking jegkanikkeheddemike/klang-compiler against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjegkanikkeheddemike%2Fklang-compiler" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jegkanikkeheddemike/klang-compiler
[INFO] finished tweaking git repo https://github.com/jegkanikkeheddemike/klang-compiler
[INFO] tweaked toml for git repo https://github.com/jegkanikkeheddemike/klang-compiler written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jegkanikkeheddemike/klang-compiler on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jegkanikkeheddemike/klang-compiler 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b
[INFO] running `Command { std: "docker" "start" "0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking klang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     RawExpr(Expr<'a>),
[INFO] [stdout]    |     ------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     RawExpr(Expr<'a>),
[INFO] [stdout] 10 +     RawExpr(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     VarReassign(&'a str, Expr<'a>),
[INFO] [stdout]    |     ----------- ^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 -     VarReassign(&'a str, Expr<'a>),
[INFO] [stdout] 14 +     VarReassign((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     And(Box<Expr<'a>>, Box<Expr<'a>>),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 29 -     And(Box<Expr<'a>>, Box<Expr<'a>>),
[INFO] [stdout] 29 +     And((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:109:26
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Command::Init(ident, val.into())
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 109 -     Command::Init(ident, val.into())
[INFO] [stdout] 109 +     Command::Init(ident, val)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 109 -     Command::Init(ident, val.into())
[INFO] [stdout] 109 +     Command::Init(ident, <Expr<'_> as Into<_>>::into(val))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:317:33
[INFO] [stdout]     |
[INFO] [stdout] 317 |     Command::VarReassign(ident, expr.into())
[INFO] [stdout]     |                                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 317 -     Command::VarReassign(ident, expr.into())
[INFO] [stdout] 317 +     Command::VarReassign(ident, expr)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 317 -     Command::VarReassign(ident, expr.into())
[INFO] [stdout] 317 +     Command::VarReassign(ident, <Expr<'_> as Into<_>>::into(expr))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:344:38
[INFO] [stdout]     |
[INFO] [stdout] 344 |     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, index_expr, val.into())
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, <Expr<'_> as Into<_>>::into(index_expr), val.into())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:344:57
[INFO] [stdout]     |
[INFO] [stdout] 344 |     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout]     |                                                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, index_expr.into(), val)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, index_expr.into(), <Expr<'_> as Into<_>>::into(val))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `klang` (bin "klang" test) due to 4 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     RawExpr(Expr<'a>),
[INFO] [stdout]    |     ------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     RawExpr(Expr<'a>),
[INFO] [stdout] 10 +     RawExpr(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     VarReassign(&'a str, Expr<'a>),
[INFO] [stdout]    |     ----------- ^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 -     VarReassign(&'a str, Expr<'a>),
[INFO] [stdout] 14 +     VarReassign((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     And(Box<Expr<'a>>, Box<Expr<'a>>),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 29 -     And(Box<Expr<'a>>, Box<Expr<'a>>),
[INFO] [stdout] 29 +     And((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:109:26
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Command::Init(ident, val.into())
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 109 -     Command::Init(ident, val.into())
[INFO] [stdout] 109 +     Command::Init(ident, val)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 109 -     Command::Init(ident, val.into())
[INFO] [stdout] 109 +     Command::Init(ident, <Expr<'_> as Into<_>>::into(val))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:317:33
[INFO] [stdout]     |
[INFO] [stdout] 317 |     Command::VarReassign(ident, expr.into())
[INFO] [stdout]     |                                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 317 -     Command::VarReassign(ident, expr.into())
[INFO] [stdout] 317 +     Command::VarReassign(ident, expr)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 317 -     Command::VarReassign(ident, expr.into())
[INFO] [stdout] 317 +     Command::VarReassign(ident, <Expr<'_> as Into<_>>::into(expr))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:344:38
[INFO] [stdout]     |
[INFO] [stdout] 344 |     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, index_expr, val.into())
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, <Expr<'_> as Into<_>>::into(index_expr), val.into())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Expr<'_>`
[INFO] [stdout]    --> src/parser.rs:344:57
[INFO] [stdout]     |
[INFO] [stdout] 344 |     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout]     |                                                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, index_expr.into(), val)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 344 -     Command::ArrIndexReassign(ident, index_expr.into(), val.into())
[INFO] [stdout] 344 +     Command::ArrIndexReassign(ident, index_expr.into(), <Expr<'_> as Into<_>>::into(val))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `klang` (bin "klang") due to 4 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b", kill_on_drop: false }`
[INFO] [stdout] 0664991c645b7ed9f5f0d8a747a102dca3965a3d68d20aaed29540e5a2479e9b
