[INFO] fetching crate nona 0.1.2...
[INFO] checking nona-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate nona 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate nona 0.1.2 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 crates.io crate nona 0.1.2
[INFO] finished tweaking crates.io crate nona 0.1.2
[INFO] tweaked toml for crates.io crate nona 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 47 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding deflate v0.8.6 (latest: v1.0.0)
[INFO] [stderr]       Adding gif v0.11.4 (latest: v0.13.1)
[INFO] [stderr]       Adding image v0.23.14 (latest: v0.25.1)
[INFO] [stderr]       Adding jpeg-decoder v0.1.22 (latest: v0.3.1)
[INFO] [stderr]       Adding miniz_oxide v0.3.7 (latest: v0.7.2)
[INFO] [stderr]       Adding miniz_oxide v0.4.4 (latest: v0.7.2)
[INFO] [stderr]       Adding num-rational v0.3.2 (latest: v0.4.1)
[INFO] [stderr]       Adding owned_ttf_parser v0.15.2 (latest: v0.20.0)
[INFO] [stderr]       Adding png v0.16.8 (latest: v0.17.13)
[INFO] [stderr]       Adding tiff v0.6.1 (latest: v0.9.1)
[INFO] [stderr]       Adding ttf-parser v0.15.2 (latest: v0.20.0)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clamped v1.0.0
[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] 73b8e95ca22ea1198632ceab58c1ac43ca9b0c635db77e8ae56629afe916fbcb
[INFO] running `Command { std: "docker" "start" "-a" "73b8e95ca22ea1198632ceab58c1ac43ca9b0c635db77e8ae56629afe916fbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73b8e95ca22ea1198632ceab58c1ac43ca9b0c635db77e8ae56629afe916fbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b8e95ca22ea1198632ceab58c1ac43ca9b0c635db77e8ae56629afe916fbcb", kill_on_drop: false }`
[INFO] [stdout] 73b8e95ca22ea1198632ceab58c1ac43ca9b0c635db77e8ae56629afe916fbcb
[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] bb651d845143a8ca60dd236391d8e0e6a993bf20f2c3a9848ca9589860ebf6ef
[INFO] running `Command { std: "docker" "start" "-a" "bb651d845143a8ca60dd236391d8e0e6a993bf20f2c3a9848ca9589860ebf6ef", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking clamped v1.0.0
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking rusttype v0.9.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking nona v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `x`, `next_x`, `c`, and `idx` are never read
[INFO] [stdout]   --> src/fonts.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct LayoutChar {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 21 |     id: FontId,
[INFO] [stdout] 22 |     pub x: f32,
[INFO] [stdout]    |         ^
[INFO] [stdout] 23 |     pub next_x: f32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 24 |     pub c: char,
[INFO] [stdout]    |         ^
[INFO] [stdout] 25 |     pub idx: usize,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LayoutChar` 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 `message` is never read
[INFO] [stdout]   --> src/fonts.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct FontError {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 52 |     pub message: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FontError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x`, `next_x`, `c`, and `idx` are never read
[INFO] [stdout]   --> src/fonts.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct LayoutChar {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 21 |     id: FontId,
[INFO] [stdout] 22 |     pub x: f32,
[INFO] [stdout]    |         ^
[INFO] [stdout] 23 |     pub next_x: f32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 24 |     pub c: char,
[INFO] [stdout]    |         ^
[INFO] [stdout] 25 |     pub idx: usize,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LayoutChar` 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 `message` is never read
[INFO] [stdout]   --> src/fonts.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct FontError {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 52 |     pub message: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FontError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `Command { std: "docker" "inspect" "bb651d845143a8ca60dd236391d8e0e6a993bf20f2c3a9848ca9589860ebf6ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb651d845143a8ca60dd236391d8e0e6a993bf20f2c3a9848ca9589860ebf6ef", kill_on_drop: false }`
[INFO] [stdout] bb651d845143a8ca60dd236391d8e0e6a993bf20f2c3a9848ca9589860ebf6ef