[INFO] fetching crate pixcil 0.5.0...
[INFO] checking pixcil-0.5.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate pixcil 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate pixcil 0.5.0 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 pixcil 0.5.0
[INFO] finished tweaking crates.io crate pixcil 0.5.0
[INFO] tweaked toml for crates.io crate pixcil 0.5.0 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 33 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding libflate v1.4.0 (latest: v2.0.0)
[INFO] [stderr]       Adding libflate_lz77 v1.2.0 (latest: v2.0.0)
[INFO] [stderr]       Adding orfail v0.1.3 (latest: v1.1.0)
[INFO] [stderr]       Adding pagurus v0.6.4 (latest: v0.7.4)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded orfail v0.1.3
[INFO] [stderr]   Downloaded pagurus v0.6.4
[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] 880d1ff63b15f54ff09e8778b8707f09e644a2f2dc94ee5421e61a0d965db9ca
[INFO] running `Command { std: "docker" "start" "-a" "880d1ff63b15f54ff09e8778b8707f09e644a2f2dc94ee5421e61a0d965db9ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "880d1ff63b15f54ff09e8778b8707f09e644a2f2dc94ee5421e61a0d965db9ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "880d1ff63b15f54ff09e8778b8707f09e644a2f2dc94ee5421e61a0d965db9ca", kill_on_drop: false }`
[INFO] [stdout] 880d1ff63b15f54ff09e8778b8707f09e644a2f2dc94ee5421e61a0d965db9ca
[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] 4fcc85e6543201729538657a249fbf97b8433e7ec5f38f93daf038ba346c5dba
[INFO] running `Command { std: "docker" "start" "-a" "4fcc85e6543201729538657a249fbf97b8433e7ec5f38f93daf038ba346c5dba", kill_on_drop: false }`
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking libflate_lz77 v1.2.0
[INFO] [stderr]     Checking libflate v1.4.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking orfail v0.1.3
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking pagurus v0.6.4
[INFO] [stderr]     Checking pixcil v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.65s
[INFO] running `Command { std: "docker" "inspect" "4fcc85e6543201729538657a249fbf97b8433e7ec5f38f93daf038ba346c5dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fcc85e6543201729538657a249fbf97b8433e7ec5f38f93daf038ba346c5dba", kill_on_drop: false }`
[INFO] [stdout] 4fcc85e6543201729538657a249fbf97b8433e7ec5f38f93daf038ba346c5dba
[INFO] checking pixcil-0.5.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate pixcil 0.5.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate pixcil 0.5.0 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 pixcil 0.5.0
[INFO] finished tweaking crates.io crate pixcil 0.5.0
[INFO] tweaked toml for crates.io crate pixcil 0.5.0 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 33 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding libflate v1.4.0 (latest: v2.0.0)
[INFO] [stderr]       Adding libflate_lz77 v1.2.0 (latest: v2.0.0)
[INFO] [stderr]       Adding orfail v0.1.3 (latest: v1.1.0)
[INFO] [stderr]       Adding pagurus v0.6.4 (latest: v0.7.4)
[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-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] 6b26bdc41df73dfc844953f4a05600e6466c4836b058102bf5240306543576dc
[INFO] running `Command { std: "docker" "start" "-a" "6b26bdc41df73dfc844953f4a05600e6466c4836b058102bf5240306543576dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b26bdc41df73dfc844953f4a05600e6466c4836b058102bf5240306543576dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b26bdc41df73dfc844953f4a05600e6466c4836b058102bf5240306543576dc", kill_on_drop: false }`
[INFO] [stdout] 6b26bdc41df73dfc844953f4a05600e6466c4836b058102bf5240306543576dc
[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] 8952bde4c09dd486a4e86cf71b1268f0121b198a04793ddd423121ba264b51e3
[INFO] running `Command { std: "docker" "start" "-a" "8952bde4c09dd486a4e86cf71b1268f0121b198a04793ddd423121ba264b51e3", kill_on_drop: false }`
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking libflate_lz77 v1.2.0
[INFO] [stderr]     Checking libflate v1.4.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking orfail v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking pagurus v0.6.4
[INFO] [stderr]     Checking pixcil v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.77s
[INFO] running `Command { std: "docker" "inspect" "8952bde4c09dd486a4e86cf71b1268f0121b198a04793ddd423121ba264b51e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8952bde4c09dd486a4e86cf71b1268f0121b198a04793ddd423121ba264b51e3", kill_on_drop: false }`
[INFO] [stdout] 8952bde4c09dd486a4e86cf71b1268f0121b198a04793ddd423121ba264b51e3