[INFO] cloning repository https://github.com/DirtyHairy/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DirtyHairy/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDirtyHairy%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDirtyHairy%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7ee728bea9abd5c736c956301862121c2c5ac6b
[INFO] checking DirtyHairy/rustlings against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDirtyHairy%2Frustlings" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DirtyHairy/rustlings 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/DirtyHairy/rustlings
[INFO] finished tweaking git repo https://github.com/DirtyHairy/rustlings
[INFO] tweaked toml for git repo https://github.com/DirtyHairy/rustlings written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DirtyHairy/rustlings 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]  Downloading crates ...
[INFO] [stderr]   Downloaded is-terminal v0.4.2
[INFO] [stderr]   Downloaded sdl2 v0.35.2
[INFO] [stderr]   Downloaded rustix v0.36.5
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 52d3fd47243b09b1af6f53a7c0998b07d0eacbe6bad4d52b15179e1a6f8fa602
[INFO] running `Command { std: "docker" "start" "-a" "52d3fd47243b09b1af6f53a7c0998b07d0eacbe6bad4d52b15179e1a6f8fa602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52d3fd47243b09b1af6f53a7c0998b07d0eacbe6bad4d52b15179e1a6f8fa602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52d3fd47243b09b1af6f53a7c0998b07d0eacbe6bad4d52b15179e1a6f8fa602", kill_on_drop: false }`
[INFO] [stdout] 52d3fd47243b09b1af6f53a7c0998b07d0eacbe6bad4d52b15179e1a6f8fa602
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 171b8d36650c6d3ed4b9dac201e35ffd83765f1489c14160674e7f8c8693f51a
[INFO] running `Command { std: "docker" "start" "-a" "171b8d36650c6d3ed4b9dac201e35ffd83765f1489c14160674e7f8c8693f51a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking is-terminal v0.4.2
[INFO] [stderr]     Checking clap v4.0.32
[INFO] [stderr]     Checking rustlings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `header` is never read
[INFO] [stdout]   --> src/game_data/file/encoding/datfile.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Section {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 14 |     pub header: Header,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_y` is never used
[INFO] [stdout]   --> src/game_data/level.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait LevelStructure {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn get_y(&self) -> i32;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `object_info` and `terrain_info` are never read
[INFO] [stdout]   --> src/game_data/tile_set.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct TileSet {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 45 |     pub object_info: [ObjectInfo; OBJECTS_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 46 |     pub terrain_info: [TerrainInfo; TILES_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TileSet` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `header` is never read
[INFO] [stdout]   --> src/game_data/file/encoding/datfile.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Section {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 14 |     pub header: Header,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_y` is never used
[INFO] [stdout]   --> src/game_data/level.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait LevelStructure {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn get_y(&self) -> i32;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `object_info` and `terrain_info` are never read
[INFO] [stdout]   --> src/game_data/tile_set.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct TileSet {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 45 |     pub object_info: [ObjectInfo; OBJECTS_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 46 |     pub terrain_info: [TerrainInfo; TILES_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TileSet` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "171b8d36650c6d3ed4b9dac201e35ffd83765f1489c14160674e7f8c8693f51a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171b8d36650c6d3ed4b9dac201e35ffd83765f1489c14160674e7f8c8693f51a", kill_on_drop: false }`
[INFO] [stdout] 171b8d36650c6d3ed4b9dac201e35ffd83765f1489c14160674e7f8c8693f51a
[INFO] checking DirtyHairy/rustlings against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDirtyHairy%2Frustlings" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DirtyHairy/rustlings 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/DirtyHairy/rustlings
[INFO] finished tweaking git repo https://github.com/DirtyHairy/rustlings
[INFO] tweaked toml for git repo https://github.com/DirtyHairy/rustlings written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/DirtyHairy/rustlings 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ea20c3d736061518e8ddb7c1fa2a5b6a99d5650aaa6aea427265786996634a0
[INFO] running `Command { std: "docker" "start" "-a" "7ea20c3d736061518e8ddb7c1fa2a5b6a99d5650aaa6aea427265786996634a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ea20c3d736061518e8ddb7c1fa2a5b6a99d5650aaa6aea427265786996634a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea20c3d736061518e8ddb7c1fa2a5b6a99d5650aaa6aea427265786996634a0", kill_on_drop: false }`
[INFO] [stdout] 7ea20c3d736061518e8ddb7c1fa2a5b6a99d5650aaa6aea427265786996634a0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6935f01ae2a1333775a0e36b0e353e1ae962c32119e2eafcd230338fb355e5d
[INFO] running `Command { std: "docker" "start" "-a" "e6935f01ae2a1333775a0e36b0e353e1ae962c32119e2eafcd230338fb355e5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking is-terminal v0.4.2
[INFO] [stderr]     Checking clap v4.0.32
[INFO] [stderr]     Checking rustlings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `header` is never read
[INFO] [stdout]   --> src/game_data/file/encoding/datfile.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Section {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 14 |     pub header: Header,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_y` is never used
[INFO] [stdout]   --> src/game_data/level.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait LevelStructure {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn get_y(&self) -> i32;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `object_info` and `terrain_info` are never read
[INFO] [stdout]   --> src/game_data/tile_set.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct TileSet {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 45 |     pub object_info: [ObjectInfo; OBJECTS_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 46 |     pub terrain_info: [TerrainInfo; TILES_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TileSet` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `header` is never read
[INFO] [stdout]   --> src/game_data/file/encoding/datfile.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Section {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 14 |     pub header: Header,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_y` is never used
[INFO] [stdout]   --> src/game_data/level.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait LevelStructure {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn get_y(&self) -> i32;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `object_info` and `terrain_info` are never read
[INFO] [stdout]   --> src/game_data/tile_set.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct TileSet {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 45 |     pub object_info: [ObjectInfo; OBJECTS_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 46 |     pub terrain_info: [TerrainInfo; TILES_PER_TILESET],
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TileSet` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `Command { std: "docker" "inspect" "e6935f01ae2a1333775a0e36b0e353e1ae962c32119e2eafcd230338fb355e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6935f01ae2a1333775a0e36b0e353e1ae962c32119e2eafcd230338fb355e5d", kill_on_drop: false }`
[INFO] [stdout] e6935f01ae2a1333775a0e36b0e353e1ae962c32119e2eafcd230338fb355e5d