[INFO] fetching crate l_group_validity 0.1.0...
[INFO] checking l_group_validity-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate l_group_validity 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate l_group_validity 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 l_group_validity 0.1.0
[INFO] finished tweaking crates.io crate l_group_validity 0.1.0
[INFO] tweaked toml for crates.io crate l_group_validity 0.1.0 written to /workspace/builds/worker-6-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 4 packages
[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 l_group_cnf v0.1.0
[INFO] [stderr]   Downloaded truncated_free_groups v0.1.0
[INFO] [stderr]   Downloaded l_group_formulas v0.1.0
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e64fdd6f0a22e827b52f10120f4dd5a0dbb5eca0b22279f09dc6c3e4fb4d9b54
[INFO] running `Command { std: "docker" "start" "-a" "e64fdd6f0a22e827b52f10120f4dd5a0dbb5eca0b22279f09dc6c3e4fb4d9b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e64fdd6f0a22e827b52f10120f4dd5a0dbb5eca0b22279f09dc6c3e4fb4d9b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64fdd6f0a22e827b52f10120f4dd5a0dbb5eca0b22279f09dc6c3e4fb4d9b54", kill_on_drop: false }`
[INFO] [stdout] e64fdd6f0a22e827b52f10120f4dd5a0dbb5eca0b22279f09dc6c3e4fb4d9b54
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfbf9ed567763931dafb17e018f4cb4e64666ffa2d3e1cef0fbcc776d0589eaa
[INFO] running `Command { std: "docker" "start" "-a" "bfbf9ed567763931dafb17e018f4cb4e64666ffa2d3e1cef0fbcc776d0589eaa", kill_on_drop: false }`
[INFO] [stderr]     Checking l_group_formulas v0.1.0
[INFO] [stderr]     Checking l_group_cnf v0.1.0
[INFO] [stderr]     Checking truncated_free_groups v0.1.0
[INFO] [stderr]     Checking l_group_validity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "bfbf9ed567763931dafb17e018f4cb4e64666ffa2d3e1cef0fbcc776d0589eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfbf9ed567763931dafb17e018f4cb4e64666ffa2d3e1cef0fbcc776d0589eaa", kill_on_drop: false }`
[INFO] [stdout] bfbf9ed567763931dafb17e018f4cb4e64666ffa2d3e1cef0fbcc776d0589eaa
[INFO] checking l_group_validity-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate l_group_validity 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate l_group_validity 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 l_group_validity 0.1.0
[INFO] finished tweaking crates.io crate l_group_validity 0.1.0
[INFO] tweaked toml for crates.io crate l_group_validity 0.1.0 written to /workspace/builds/worker-6-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 4 packages
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9c4669bd6b05a4e9fb9b63537bf0ec4e5a2bd9da38d6fee53f6bc69c4b7dee67
[INFO] running `Command { std: "docker" "start" "-a" "9c4669bd6b05a4e9fb9b63537bf0ec4e5a2bd9da38d6fee53f6bc69c4b7dee67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c4669bd6b05a4e9fb9b63537bf0ec4e5a2bd9da38d6fee53f6bc69c4b7dee67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4669bd6b05a4e9fb9b63537bf0ec4e5a2bd9da38d6fee53f6bc69c4b7dee67", kill_on_drop: false }`
[INFO] [stdout] 9c4669bd6b05a4e9fb9b63537bf0ec4e5a2bd9da38d6fee53f6bc69c4b7dee67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c01c54d49db3ace55227c33d2528f11e2fdc3ba2f1ecd48e658b4e1c60d85f65
[INFO] running `Command { std: "docker" "start" "-a" "c01c54d49db3ace55227c33d2528f11e2fdc3ba2f1ecd48e658b4e1c60d85f65", kill_on_drop: false }`
[INFO] [stderr]     Checking l_group_formulas v0.1.0
[INFO] [stderr]     Checking l_group_cnf v0.1.0
[INFO] [stderr]     Checking truncated_free_groups v0.1.0
[INFO] [stderr]     Checking l_group_validity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "c01c54d49db3ace55227c33d2528f11e2fdc3ba2f1ecd48e658b4e1c60d85f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c01c54d49db3ace55227c33d2528f11e2fdc3ba2f1ecd48e658b4e1c60d85f65", kill_on_drop: false }`
[INFO] [stdout] c01c54d49db3ace55227c33d2528f11e2fdc3ba2f1ecd48e658b4e1c60d85f65