[INFO] fetching crate looke 0.2.1... [INFO] checking looke-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate looke 0.2.1 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate looke 0.2.1 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 looke 0.2.1 [INFO] finished tweaking crates.io crate looke 0.2.1 [INFO] tweaked toml for crates.io crate looke 0.2.1 written to /workspace/builds/worker-3-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] Locking 65 packages [INFO] [stderr] Adding approx v0.1.1 (latest: v0.5.1) [INFO] [stderr] Adding autocfg v0.1.8 (latest: v1.2.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding deflate v0.7.20 (latest: v1.0.0) [INFO] [stderr] Adding gif v0.10.3 (latest: v0.13.1) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding image v0.20.1 (latest: v0.25.1) [INFO] [stderr] Adding jpeg-decoder v0.1.22 (latest: v0.3.1) [INFO] [stderr] Adding num-derive v0.2.5 (latest: v0.4.2) [INFO] [stderr] Adding num-rational v0.2.4 (latest: v0.4.1) [INFO] [stderr] Adding palette v0.4.1 (latest: v0.7.5) [INFO] [stderr] Adding palette_derive v0.4.1 (latest: v0.7.5) [INFO] [stderr] Adding phf v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding phf_codegen v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding phf_generator v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding phf_shared v0.7.24 (latest: v0.11.2) [INFO] [stderr] Adding png v0.12.0 (latest: v0.17.13) [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.79) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.35) [INFO] [stderr] Adding rand v0.6.5 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (latest: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (latest: v0.4.0) [INFO] [stderr] Adding rand_os v0.1.3 (latest: v0.2.2) [INFO] [stderr] Adding rand_pcg v0.1.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding siphasher v0.2.3 (latest: v1.0.1) [INFO] [stderr] Adding strsim v0.8.0 (latest: v0.11.1) [INFO] [stderr] Adding syn v0.14.9 (latest: v2.0.58) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.58) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding tiff v0.2.2 (latest: v0.9.1) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.4) [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 inflate v0.4.5 [INFO] [stderr] Downloaded lzw v0.10.0 [INFO] [stderr] Downloaded num-derive v0.2.5 [INFO] [stderr] Downloaded palette_derive v0.4.1 [INFO] [stderr] Downloaded image v0.20.1 [INFO] [stderr] Downloaded png v0.12.0 [INFO] [stderr] Downloaded gif v0.10.3 [INFO] [stderr] Downloaded palette v0.4.1 [INFO] [stderr] Downloaded syn v0.14.9 [INFO] [stderr] Downloaded deflate v0.7.20 [INFO] [stderr] Downloaded tiff v0.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ec22df3d84e3af5a59f0dec71e527942557d183ab9c2fbaaf93543b0a08448d4 [INFO] running `Command { std: "docker" "start" "-a" "ec22df3d84e3af5a59f0dec71e527942557d183ab9c2fbaaf93543b0a08448d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec22df3d84e3af5a59f0dec71e527942557d183ab9c2fbaaf93543b0a08448d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec22df3d84e3af5a59f0dec71e527942557d183ab9c2fbaaf93543b0a08448d4", kill_on_drop: false }` [INFO] [stdout] ec22df3d84e3af5a59f0dec71e527942557d183ab9c2fbaaf93543b0a08448d4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ab9d7dae1236d58a22132fa1513918fed7b8e4e857f00190d068450a853437b8 [INFO] running `Command { std: "docker" "start" "-a" "ab9d7dae1236d58a22132fa1513918fed7b8e4e857f00190d068450a853437b8", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking approx v0.1.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Compiling palette v0.4.1 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Compiling palette_derive v0.4.1 [INFO] [stderr] Checking tiff v0.2.2 [INFO] [stderr] Checking image v0.20.1 [INFO] [stderr] Checking looke v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/diff.rs:45:32 [INFO] [stdout] | [INFO] [stdout] 45 | pub type PixelComparator = Box bool>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 45 | pub type PixelComparator = Box bool>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/diff.rs:45:32 [INFO] [stdout] | [INFO] [stdout] 45 | pub type PixelComparator = Box bool>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 45 | pub type PixelComparator = Box bool>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `xmin`, `ymin`, `xmax`, and `ymax` are never read [INFO] [stdout] --> src/diff.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct DiffArea { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 8 | xmin: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 9 | ymin: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | xmax: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | ymax: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DiffArea` 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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `xmin`, `ymin`, `xmax`, and `ymax` are never read [INFO] [stdout] --> src/diff.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct DiffArea { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 8 | xmin: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 9 | ymin: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | xmax: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | ymax: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DiffArea` 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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.73s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "ab9d7dae1236d58a22132fa1513918fed7b8e4e857f00190d068450a853437b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab9d7dae1236d58a22132fa1513918fed7b8e4e857f00190d068450a853437b8", kill_on_drop: false }` [INFO] [stdout] ab9d7dae1236d58a22132fa1513918fed7b8e4e857f00190d068450a853437b8