[INFO] cloning repository https://github.com/iomallach/nzoth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iomallach/nzoth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiomallach%2Fnzoth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiomallach%2Fnzoth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76533d0eae2186df5aea3aad41034c8a0402330c
[INFO] building iomallach/nzoth against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiomallach%2Fnzoth" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iomallach/nzoth
[INFO] finished tweaking git repo https://github.com/iomallach/nzoth
[INFO] tweaked toml for git repo https://github.com/iomallach/nzoth written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iomallach/nzoth on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iomallach/nzoth 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b39637125a80bb12add2f6318d848f4786462939e16e54a41523830bfcf25c10
[INFO] running `Command { std: "docker" "start" "-a" "b39637125a80bb12add2f6318d848f4786462939e16e54a41523830bfcf25c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b39637125a80bb12add2f6318d848f4786462939e16e54a41523830bfcf25c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b39637125a80bb12add2f6318d848f4786462939e16e54a41523830bfcf25c10", kill_on_drop: false }`
[INFO] [stdout] b39637125a80bb12add2f6318d848f4786462939e16e54a41523830bfcf25c10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3697b1e37f4974b3a2227c32a57699757489d2175c62982e42965afe060aeac0
[INFO] running `Command { std: "docker" "start" "-a" "3697b1e37f4974b3a2227c32a57699757489d2175c62982e42965afe060aeac0", kill_on_drop: false }`
[INFO] [stderr]    Compiling nzoth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/checker/checked_ir.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |         if let Self::BuiltIn(_) = self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/source/mod.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct FileId(usize);
[INFO] [stdout]   |            ------ ^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `FileId` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "3697b1e37f4974b3a2227c32a57699757489d2175c62982e42965afe060aeac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3697b1e37f4974b3a2227c32a57699757489d2175c62982e42965afe060aeac0", kill_on_drop: false }`
[INFO] [stdout] 3697b1e37f4974b3a2227c32a57699757489d2175c62982e42965afe060aeac0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcd75d4efcac34c68f32d1529da606df799bf78f353b096f8a4aa806f7abdea8
[INFO] running `Command { std: "docker" "start" "-a" "dcd75d4efcac34c68f32d1529da606df799bf78f353b096f8a4aa806f7abdea8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/checker/checked_ir.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |         if let Self::BuiltIn(_) = self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/source/mod.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct FileId(usize);
[INFO] [stdout]   |            ------ ^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `FileId` 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] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling globset v0.4.16
[INFO] [stderr]    Compiling insta v1.43.1
[INFO] [stderr]    Compiling nzoth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SnapshotToken` is never constructed
[INFO] [stdout]   --> tests/helpers.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct SnapshotToken<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> tests/helpers.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl<'a> SnapshotToken<'a> {
[INFO] [stdout]    | -------------------------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn new(token: Token, source: &'a RefCell<SourceFile<'a>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SnapshotTokens` is never constructed
[INFO] [stdout]   --> tests/helpers.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct SnapshotTokens<'a>(pub Vec<SnapshotToken<'a>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SnapshotErrors` is never constructed
[INFO] [stdout]  --> tests/helpers.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct SnapshotErrors<'a>(pub &'a Vec<CompilationError<'a>>);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_source_file` is never used
[INFO] [stdout]   --> tests/helpers.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn create_source_file<'a>(path: &'a Path, contents: &'a str) -> RefCell<SourceFile<'a>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SnapshotToken` is never constructed
[INFO] [stdout]   --> tests/helpers.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct SnapshotToken<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> tests/helpers.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl<'a> SnapshotToken<'a> {
[INFO] [stdout]    | -------------------------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn new(token: Token, source: &'a RefCell<SourceFile<'a>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SnapshotTokens` is never constructed
[INFO] [stdout]   --> tests/helpers.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct SnapshotTokens<'a>(pub Vec<SnapshotToken<'a>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expected`
[INFO] [stdout]    --> src/parser/mod.rs:640:20
[INFO] [stdout]     |
[INFO] [stdout] 640 |         for (code, expected) in tests {
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expected`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `program`
[INFO] [stdout]    --> src/parser/mod.rs:644:17
[INFO] [stdout]     |
[INFO] [stdout] 644 |             let program = parser.parse();
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/checker/checked_ir.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |         if let Self::BuiltIn(_) = self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/source/mod.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct FileId(usize);
[INFO] [stdout]   |            ------ ^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `FileId` 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: function `test_line_str` is never used
[INFO] [stdout]    --> src/source/mod.rs:250:8
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn test_line_str() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 24.86s
[INFO] running `Command { std: "docker" "inspect" "dcd75d4efcac34c68f32d1529da606df799bf78f353b096f8a4aa806f7abdea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd75d4efcac34c68f32d1529da606df799bf78f353b096f8a4aa806f7abdea8", kill_on_drop: false }`
[INFO] [stdout] dcd75d4efcac34c68f32d1529da606df799bf78f353b096f8a4aa806f7abdea8