[INFO] fetching crate twenty-twenty 0.6.1...
[INFO] checking twenty-twenty-0.6.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate twenty-twenty 0.6.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate twenty-twenty 0.6.1 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 twenty-twenty 0.6.1
[INFO] finished tweaking crates.io crate twenty-twenty 0.6.1
[INFO] tweaked toml for crates.io crate twenty-twenty 0.6.1 written to /workspace/builds/worker-0-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 89 packages
[INFO] [stderr]       Adding bindgen v0.64.0 (latest: v0.69.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding ffmpeg-next v6.1.1 (latest: v7.0.0)
[INFO] [stderr]       Adding ffmpeg-sys-next v6.1.0 (latest: v7.0.0)
[INFO] [stderr]       Adding image v0.24.9 (latest: v0.25.1)
[INFO] [stderr]       Adding image-compare v0.3.1 (latest: v0.4.1)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding peeking_take_while v0.1.2 (latest: v1.0.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded ffmpeg-sys-next v6.1.0
[INFO] [stderr]   Downloaded bindgen v0.64.0
[INFO] [stderr]   Downloaded ffmpeg-next v6.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ca0951461c39b91c1ce2598eb1d687a3328e9bcbe77f4ea0094d298c3cbb74bb
[INFO] running `Command { std: "docker" "start" "-a" "ca0951461c39b91c1ce2598eb1d687a3328e9bcbe77f4ea0094d298c3cbb74bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca0951461c39b91c1ce2598eb1d687a3328e9bcbe77f4ea0094d298c3cbb74bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca0951461c39b91c1ce2598eb1d687a3328e9bcbe77f4ea0094d298c3cbb74bb", kill_on_drop: false }`
[INFO] [stdout] ca0951461c39b91c1ce2598eb1d687a3328e9bcbe77f4ea0094d298c3cbb74bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bc48a0be154c5a40542349fd8ffc49e647d2b2feffe0028d0c13f8ca71a901a1
[INFO] running `Command { std: "docker" "start" "-a" "bc48a0be154c5a40542349fd8ffc49e647d2b2feffe0028d0c13f8ca71a901a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling bindgen v0.64.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling clang-sys v1.7.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling ffmpeg-next v6.1.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking image-compare v0.3.1
[INFO] [stderr]    Compiling ffmpeg-sys-next v6.1.0
[INFO] [stderr]     Checking twenty-twenty v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.66s
[INFO] running `Command { std: "docker" "inspect" "bc48a0be154c5a40542349fd8ffc49e647d2b2feffe0028d0c13f8ca71a901a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc48a0be154c5a40542349fd8ffc49e647d2b2feffe0028d0c13f8ca71a901a1", kill_on_drop: false }`
[INFO] [stdout] bc48a0be154c5a40542349fd8ffc49e647d2b2feffe0028d0c13f8ca71a901a1
[INFO] checking twenty-twenty-0.6.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate twenty-twenty 0.6.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate twenty-twenty 0.6.1 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 crates.io crate twenty-twenty 0.6.1
[INFO] finished tweaking crates.io crate twenty-twenty 0.6.1
[INFO] tweaked toml for crates.io crate twenty-twenty 0.6.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 89 packages
[INFO] [stderr]       Adding bindgen v0.64.0 (latest: v0.69.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding ffmpeg-next v6.1.1 (latest: v7.0.0)
[INFO] [stderr]       Adding ffmpeg-sys-next v6.1.0 (latest: v7.0.0)
[INFO] [stderr]       Adding image v0.24.9 (latest: v0.25.1)
[INFO] [stderr]       Adding image-compare v0.3.1 (latest: v0.4.1)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding peeking_take_while v0.1.2 (latest: v1.0.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8ce5f1e301f05136dd2971743e7b21c78c2fb2d29ead9841de2c061c51f58d33
[INFO] running `Command { std: "docker" "start" "-a" "8ce5f1e301f05136dd2971743e7b21c78c2fb2d29ead9841de2c061c51f58d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ce5f1e301f05136dd2971743e7b21c78c2fb2d29ead9841de2c061c51f58d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce5f1e301f05136dd2971743e7b21c78c2fb2d29ead9841de2c061c51f58d33", kill_on_drop: false }`
[INFO] [stdout] 8ce5f1e301f05136dd2971743e7b21c78c2fb2d29ead9841de2c061c51f58d33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 45d0cb2177f70b92145184f6ea14227896fe6d35fd9acb9d69764dbc0ad995c0
[INFO] running `Command { std: "docker" "start" "-a" "45d0cb2177f70b92145184f6ea14227896fe6d35fd9acb9d69764dbc0ad995c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling bindgen v0.64.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling clang-sys v1.7.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling ffmpeg-next v6.1.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking image-compare v0.3.1
[INFO] [stderr]    Compiling ffmpeg-sys-next v6.1.0
[INFO] [stderr]     Checking twenty-twenty v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.42s
[INFO] running `Command { std: "docker" "inspect" "45d0cb2177f70b92145184f6ea14227896fe6d35fd9acb9d69764dbc0ad995c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45d0cb2177f70b92145184f6ea14227896fe6d35fd9acb9d69764dbc0ad995c0", kill_on_drop: false }`
[INFO] [stdout] 45d0cb2177f70b92145184f6ea14227896fe6d35fd9acb9d69764dbc0ad995c0