[INFO] fetching crate falsepng 0.1.0...
[INFO] checking falsepng-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate falsepng 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate falsepng 0.1.0 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 falsepng 0.1.0
[INFO] finished tweaking crates.io crate falsepng 0.1.0
[INFO] tweaked toml for crates.io crate falsepng 0.1.0 written to /workspace/builds/worker-2-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 30 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 png v0.16.8 (latest: v0.17.13)
[INFO] [stderr]       Adding tiff v0.6.1 (latest: v0.9.1)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bd5c3b8ed36076c09a204d3d2035b5807133c995729c01709191f9e72856bb7a
[INFO] running `Command { std: "docker" "start" "-a" "bd5c3b8ed36076c09a204d3d2035b5807133c995729c01709191f9e72856bb7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd5c3b8ed36076c09a204d3d2035b5807133c995729c01709191f9e72856bb7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5c3b8ed36076c09a204d3d2035b5807133c995729c01709191f9e72856bb7a", kill_on_drop: false }`
[INFO] [stdout] bd5c3b8ed36076c09a204d3d2035b5807133c995729c01709191f9e72856bb7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7ff28c52f5eed984118b095a413fe46cce167fa6add1984acf93bfafa44fd34c
[INFO] running `Command { std: "docker" "start" "-a" "7ff28c52f5eed984118b095a413fe46cce167fa6add1984acf93bfafa44fd34c", kill_on_drop: false }`
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking falsepng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "7ff28c52f5eed984118b095a413fe46cce167fa6add1984acf93bfafa44fd34c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff28c52f5eed984118b095a413fe46cce167fa6add1984acf93bfafa44fd34c", kill_on_drop: false }`
[INFO] [stdout] 7ff28c52f5eed984118b095a413fe46cce167fa6add1984acf93bfafa44fd34c
[INFO] checking falsepng-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate falsepng 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate falsepng 0.1.0 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 falsepng 0.1.0
[INFO] finished tweaking crates.io crate falsepng 0.1.0
[INFO] tweaked toml for crates.io crate falsepng 0.1.0 written to /workspace/builds/worker-2-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 30 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 png v0.16.8 (latest: v0.17.13)
[INFO] [stderr]       Adding tiff v0.6.1 (latest: v0.9.1)
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2c0eb989c68af5cd11981084341557b70b46674e4b4e59685024413cf709aa05
[INFO] running `Command { std: "docker" "start" "-a" "2c0eb989c68af5cd11981084341557b70b46674e4b4e59685024413cf709aa05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c0eb989c68af5cd11981084341557b70b46674e4b4e59685024413cf709aa05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0eb989c68af5cd11981084341557b70b46674e4b4e59685024413cf709aa05", kill_on_drop: false }`
[INFO] [stdout] 2c0eb989c68af5cd11981084341557b70b46674e4b4e59685024413cf709aa05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e6e83184ca1ffad2d57ee218f0a96c8205a21c600fd14b9d9d64e66f0016f6d0
[INFO] running `Command { std: "docker" "start" "-a" "e6e83184ca1ffad2d57ee218f0a96c8205a21c600fd14b9d9d64e66f0016f6d0", kill_on_drop: false }`
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking falsepng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `Command { std: "docker" "inspect" "e6e83184ca1ffad2d57ee218f0a96c8205a21c600fd14b9d9d64e66f0016f6d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e83184ca1ffad2d57ee218f0a96c8205a21c600fd14b9d9d64e66f0016f6d0", kill_on_drop: false }`
[INFO] [stdout] e6e83184ca1ffad2d57ee218f0a96c8205a21c600fd14b9d9d64e66f0016f6d0