[INFO] fetching crate rust-animation 0.2.7...
[INFO] checking rust-animation-0.2.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rust-animation 0.2.7 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate rust-animation 0.2.7 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-animation 0.2.7
[INFO] finished tweaking crates.io crate rust-animation 0.2.7
[INFO] tweaked toml for crates.io crate rust-animation 0.2.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate rust-animation 0.2.7 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mint v0.5.9
[INFO] [stderr]   Downloaded zune-inflate v0.2.54
[INFO] [stderr]   Downloaded xml-rs v0.7.0
[INFO] [stderr]   Downloaded gl_generator v0.9.0
[INFO] [stderr]   Downloaded gl v0.10.0
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[INFO] [stderr]   Downloaded libm v0.1.4
[INFO] [stderr]   Downloaded glfw v0.50.0
[INFO] [stderr]   Downloaded khronos_api v2.2.0
[INFO] [stderr]   Downloaded exr v1.71.0
[INFO] [stderr]   Downloaded glfw-sys v4.0.0+3.3.5
[INFO] [stderr]   Downloaded keyframe v1.1.1
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f2d9b8aec7461f50371b1a1b035491f6288473f425846b27791dc8aca94eb6c
[INFO] running `Command { std: "docker" "start" "-a" "5f2d9b8aec7461f50371b1a1b035491f6288473f425846b27791dc8aca94eb6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f2d9b8aec7461f50371b1a1b035491f6288473f425846b27791dc8aca94eb6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2d9b8aec7461f50371b1a1b035491f6288473f425846b27791dc8aca94eb6c", kill_on_drop: false }`
[INFO] [stdout] 5f2d9b8aec7461f50371b1a1b035491f6288473f425846b27791dc8aca94eb6c
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07b532675c886ab990c67b6cef83dc3b88702d3365ec8f292317229156d2fa88
[INFO] running `Command { std: "docker" "start" "-a" "07b532675c886ab990c67b6cef83dc3b88702d3365ec8f292317229156d2fa88", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
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[INFO] [stderr]     Checking simd-adler32 v0.3.7
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[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling openssl-sys v0.9.96
[INFO] [stderr]    Compiling xml-rs v0.7.0
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[INFO] [stderr]     Checking rust-animation v0.2.7 (/opt/rustwide/workdir)
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[INFO] [stderr]     Checking hyper v0.14.27
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[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]   --> examples/picture_viewer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::boxed::Box;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Box` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` 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 10.40s
[INFO] running `Command { std: "docker" "inspect" "07b532675c886ab990c67b6cef83dc3b88702d3365ec8f292317229156d2fa88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b532675c886ab990c67b6cef83dc3b88702d3365ec8f292317229156d2fa88", kill_on_drop: false }`
[INFO] [stdout] 07b532675c886ab990c67b6cef83dc3b88702d3365ec8f292317229156d2fa88