[INFO] cloning repository https://github.com/NashatHelmi/nam-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NashatHelmi/nam-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNashatHelmi%2Fnam-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNashatHelmi%2Fnam-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f007f7f04583d1ec386e8ab4f4fa2e1e82a66024
[INFO] checking NashatHelmi/nam-lang against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNashatHelmi%2Fnam-lang" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NashatHelmi/nam-lang on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NashatHelmi/nam-lang
[INFO] finished tweaking git repo https://github.com/NashatHelmi/nam-lang
[INFO] tweaked toml for git repo https://github.com/NashatHelmi/nam-lang written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/NashatHelmi/nam-lang 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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 ...
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[INFO] [stderr]   Downloaded eyre v0.6.9
[INFO] [stderr]   Downloaded reedline v0.26.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 799fd658bbcd909b1290c20f4f9721bd01733ea86a4001ae0f25259796b19ba9
[INFO] running `Command { std: "docker" "start" "-a" "799fd658bbcd909b1290c20f4f9721bd01733ea86a4001ae0f25259796b19ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "799fd658bbcd909b1290c20f4f9721bd01733ea86a4001ae0f25259796b19ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "799fd658bbcd909b1290c20f4f9721bd01733ea86a4001ae0f25259796b19ba9", kill_on_drop: false }`
[INFO] [stdout] 799fd658bbcd909b1290c20f4f9721bd01733ea86a4001ae0f25259796b19ba9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26cccdbeb8d8fcae1a8c3055c60dfb60df5e7193ab90fead130d9f5766dd603b
[INFO] running `Command { std: "docker" "start" "-a" "26cccdbeb8d8fcae1a8c3055c60dfb60df5e7193ab90fead130d9f5766dd603b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rustix v0.38.24
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling eyre v0.6.9
[INFO] [stderr]     Checking linux-raw-sys v0.4.11
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking vte v0.11.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking strip-ansi-escapes v0.2.0
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking nu-ansi-term v0.49.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking fd-lock v3.0.13
[INFO] [stderr]     Checking reedline v0.26.0
[INFO] [stderr]     Checking nam v0.3.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]  --> src/ast.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ASTNode {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub kind: ASTNodeKind,
[INFO] [stdout] 8 |     pub span: Option<Span>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ASTNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]  --> src/ast.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ASTNode {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub kind: ASTNodeKind,
[INFO] [stdout] 8 |     pub span: Option<Span>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ASTNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.30s
[INFO] running `Command { std: "docker" "inspect" "26cccdbeb8d8fcae1a8c3055c60dfb60df5e7193ab90fead130d9f5766dd603b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26cccdbeb8d8fcae1a8c3055c60dfb60df5e7193ab90fead130d9f5766dd603b", kill_on_drop: false }`
[INFO] [stdout] 26cccdbeb8d8fcae1a8c3055c60dfb60df5e7193ab90fead130d9f5766dd603b
[INFO] checking NashatHelmi/nam-lang against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNashatHelmi%2Fnam-lang" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NashatHelmi/nam-lang on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NashatHelmi/nam-lang
[INFO] finished tweaking git repo https://github.com/NashatHelmi/nam-lang
[INFO] tweaked toml for git repo https://github.com/NashatHelmi/nam-lang written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/NashatHelmi/nam-lang 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e62976e40614d04ef51a2b0059d8a627dad4021d0b1a7edb8774ad1a6bc0471
[INFO] running `Command { std: "docker" "start" "-a" "4e62976e40614d04ef51a2b0059d8a627dad4021d0b1a7edb8774ad1a6bc0471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e62976e40614d04ef51a2b0059d8a627dad4021d0b1a7edb8774ad1a6bc0471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e62976e40614d04ef51a2b0059d8a627dad4021d0b1a7edb8774ad1a6bc0471", kill_on_drop: false }`
[INFO] [stdout] 4e62976e40614d04ef51a2b0059d8a627dad4021d0b1a7edb8774ad1a6bc0471
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92adf3206e0693531a95934af1e77a3e81d9f5d7c2a9faaf8f3b39acd5736e9a
[INFO] running `Command { std: "docker" "start" "-a" "92adf3206e0693531a95934af1e77a3e81d9f5d7c2a9faaf8f3b39acd5736e9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rustix v0.38.24
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling eyre v0.6.9
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking vte v0.11.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking strip-ansi-escapes v0.2.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking nu-ansi-term v0.49.0
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking fd-lock v3.0.13
[INFO] [stderr]     Checking reedline v0.26.0
[INFO] [stderr]     Checking nam v0.3.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]  --> src/ast.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ASTNode {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub kind: ASTNodeKind,
[INFO] [stdout] 8 |     pub span: Option<Span>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ASTNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]  --> src/ast.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ASTNode {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub kind: ASTNodeKind,
[INFO] [stdout] 8 |     pub span: Option<Span>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ASTNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.65s
[INFO] running `Command { std: "docker" "inspect" "92adf3206e0693531a95934af1e77a3e81d9f5d7c2a9faaf8f3b39acd5736e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92adf3206e0693531a95934af1e77a3e81d9f5d7c2a9faaf8f3b39acd5736e9a", kill_on_drop: false }`
[INFO] [stdout] 92adf3206e0693531a95934af1e77a3e81d9f5d7c2a9faaf8f3b39acd5736e9a