[INFO] cloning repository https://github.com/krzysztofgal/snapi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krzysztofgal/snapi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrzysztofgal%2Fsnapi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrzysztofgal%2Fsnapi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6af623dbe35af53e66dd68f1d69fe70c9a09ee97
[INFO] checking krzysztofgal/snapi against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrzysztofgal%2Fsnapi" "/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/krzysztofgal/snapi 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/krzysztofgal/snapi
[INFO] finished tweaking git repo https://github.com/krzysztofgal/snapi
[INFO] tweaked toml for git repo https://github.com/krzysztofgal/snapi written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/krzysztofgal/snapi 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]  Downloading crates ...
[INFO] [stderr]   Downloaded axum-core v0.2.8
[INFO] [stderr]   Downloaded axum v0.5.16
[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] bdda97f41d637c97fc6ea0190316d18a7f2d36a42a490918154f0624df065b16
[INFO] running `Command { std: "docker" "start" "-a" "bdda97f41d637c97fc6ea0190316d18a7f2d36a42a490918154f0624df065b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdda97f41d637c97fc6ea0190316d18a7f2d36a42a490918154f0624df065b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdda97f41d637c97fc6ea0190316d18a7f2d36a42a490918154f0624df065b16", kill_on_drop: false }`
[INFO] [stdout] bdda97f41d637c97fc6ea0190316d18a7f2d36a42a490918154f0624df065b16
[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] 4891a1b0478b6d3b451ec2bc21b6129766635238d3a3db32529f46a63ca3c421
[INFO] running `Command { std: "docker" "start" "-a" "4891a1b0478b6d3b451ec2bc21b6129766635238d3a3db32529f46a63ca3c421", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking http-range-header v0.3.0
[INFO] [stderr]     Checking sync_wrapper v0.1.1
[INFO] [stderr]     Checking matchit v0.5.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossterm v0.25.0
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]     Checking axum-core v0.2.8
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking serde v1.0.144
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking tower-http v0.3.4
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking axum v0.5.16
[INFO] [stderr]     Checking snapi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Tile`
[INFO] [stdout]   --> src/snake_game/mod.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use game_level::{GameLevel, Tile, TileType};
[INFO] [stdout]    |                                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tile`
[INFO] [stdout]   --> src/snake_game/mod.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use game_level::{GameLevel, Tile, TileType};
[INFO] [stdout]    |                                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/snake_game/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait SnakeBehavior {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn len(&self) -> usize;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullSnake` is never constructed
[INFO] [stdout]   --> src/snake_game/mod.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct NullSnake;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullFruit` is never constructed
[INFO] [stdout]   --> src/snake_game/mod.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | struct NullFruit;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/snake_game/game_level.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct LevelDimensions {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 172 |     pub width: usize,
[INFO] [stdout] 173 |     pub height: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/snake_game/game_level.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct LevelDimensions {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 172 |     pub width: usize,
[INFO] [stdout] 173 |     pub height: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.56s
[INFO] running `Command { std: "docker" "inspect" "4891a1b0478b6d3b451ec2bc21b6129766635238d3a3db32529f46a63ca3c421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4891a1b0478b6d3b451ec2bc21b6129766635238d3a3db32529f46a63ca3c421", kill_on_drop: false }`
[INFO] [stdout] 4891a1b0478b6d3b451ec2bc21b6129766635238d3a3db32529f46a63ca3c421
[INFO] checking krzysztofgal/snapi against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrzysztofgal%2Fsnapi" "/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/krzysztofgal/snapi on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krzysztofgal/snapi
[INFO] finished tweaking git repo https://github.com/krzysztofgal/snapi
[INFO] tweaked toml for git repo https://github.com/krzysztofgal/snapi written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/krzysztofgal/snapi 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae96605bb20f437f420ab69686c028029b78559ff58b0dba6bbc9d69ac4f788d
[INFO] running `Command { std: "docker" "start" "-a" "ae96605bb20f437f420ab69686c028029b78559ff58b0dba6bbc9d69ac4f788d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae96605bb20f437f420ab69686c028029b78559ff58b0dba6bbc9d69ac4f788d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae96605bb20f437f420ab69686c028029b78559ff58b0dba6bbc9d69ac4f788d", kill_on_drop: false }`
[INFO] [stdout] ae96605bb20f437f420ab69686c028029b78559ff58b0dba6bbc9d69ac4f788d
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d31daa13be71abea278be40ec24b1acffca1c9e06a3f8add6f22812074789fd9
[INFO] running `Command { std: "docker" "start" "-a" "d31daa13be71abea278be40ec24b1acffca1c9e06a3f8add6f22812074789fd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking http-range-header v0.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking sync_wrapper v0.1.1
[INFO] [stderr]     Checking matchit v0.5.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.25.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]     Checking axum-core v0.2.8
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking tower-http v0.3.4
[INFO] [stderr]     Checking serde v1.0.144
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking axum v0.5.16
[INFO] [stderr]     Checking snapi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Tile`
[INFO] [stdout]   --> src/snake_game/mod.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use game_level::{GameLevel, Tile, TileType};
[INFO] [stdout]    |                                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tile`
[INFO] [stdout]   --> src/snake_game/mod.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use game_level::{GameLevel, Tile, TileType};
[INFO] [stdout]    |                                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/snake_game/game_level.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct LevelDimensions {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 172 |     pub width: usize,
[INFO] [stdout] 173 |     pub height: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/snake_game/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait SnakeBehavior {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn len(&self) -> usize;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullSnake` is never constructed
[INFO] [stdout]   --> src/snake_game/mod.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct NullSnake;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullFruit` is never constructed
[INFO] [stdout]   --> src/snake_game/mod.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | struct NullFruit;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/snake_game/game_level.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct LevelDimensions {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 172 |     pub width: usize,
[INFO] [stdout] 173 |     pub height: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.77s
[INFO] running `Command { std: "docker" "inspect" "d31daa13be71abea278be40ec24b1acffca1c9e06a3f8add6f22812074789fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d31daa13be71abea278be40ec24b1acffca1c9e06a3f8add6f22812074789fd9", kill_on_drop: false }`
[INFO] [stdout] d31daa13be71abea278be40ec24b1acffca1c9e06a3f8add6f22812074789fd9