[INFO] fetching crate aliri_braid_examples 0.4.0...
[INFO] checking aliri_braid_examples-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate aliri_braid_examples 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate aliri_braid_examples 0.4.0 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 aliri_braid_examples 0.4.0
[INFO] finished tweaking crates.io crate aliri_braid_examples 0.4.0
[INFO] tweaked toml for crates.io crate aliri_braid_examples 0.4.0 written to /workspace/builds/worker-5-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 21 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7e36323c6667b4f62cbb511548419d29e877ea4f5d8a1313149c4f6a6aa1d633
[INFO] running `Command { std: "docker" "start" "-a" "7e36323c6667b4f62cbb511548419d29e877ea4f5d8a1313149c4f6a6aa1d633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e36323c6667b4f62cbb511548419d29e877ea4f5d8a1313149c4f6a6aa1d633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e36323c6667b4f62cbb511548419d29e877ea4f5d8a1313149c4f6a6aa1d633", kill_on_drop: false }`
[INFO] [stdout] 7e36323c6667b4f62cbb511548419d29e877ea4f5d8a1313149c4f6a6aa1d633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c92b8c1502f5c0076d94a95e5f9c1b59b7990b4d7978b4d6cf20c75a2fe6033f
[INFO] running `Command { std: "docker" "start" "-a" "c92b8c1502f5c0076d94a95e5f9c1b59b7990b4d7978b4d6cf20c75a2fe6033f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking castaway v0.2.2
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling aliri_braid_impl v0.4.0
[INFO] [stderr]     Checking aliri_braid v0.4.0
[INFO] [stderr]     Checking bytestring v1.3.1
[INFO] [stderr]     Checking compact_str v0.7.1
[INFO] [stderr]     Checking aliri_braid_examples v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.65s
[INFO] running `Command { std: "docker" "inspect" "c92b8c1502f5c0076d94a95e5f9c1b59b7990b4d7978b4d6cf20c75a2fe6033f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92b8c1502f5c0076d94a95e5f9c1b59b7990b4d7978b4d6cf20c75a2fe6033f", kill_on_drop: false }`
[INFO] [stdout] c92b8c1502f5c0076d94a95e5f9c1b59b7990b4d7978b4d6cf20c75a2fe6033f
[INFO] checking aliri_braid_examples-0.4.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate aliri_braid_examples 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate aliri_braid_examples 0.4.0 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 aliri_braid_examples 0.4.0
[INFO] finished tweaking crates.io crate aliri_braid_examples 0.4.0
[INFO] tweaked toml for crates.io crate aliri_braid_examples 0.4.0 written to /workspace/builds/worker-5-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 21 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1af4bd889682393e333bd9983fa08219054eb47647b6887c5b0b31550fa20650
[INFO] running `Command { std: "docker" "start" "-a" "1af4bd889682393e333bd9983fa08219054eb47647b6887c5b0b31550fa20650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1af4bd889682393e333bd9983fa08219054eb47647b6887c5b0b31550fa20650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af4bd889682393e333bd9983fa08219054eb47647b6887c5b0b31550fa20650", kill_on_drop: false }`
[INFO] [stdout] 1af4bd889682393e333bd9983fa08219054eb47647b6887c5b0b31550fa20650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 558fbaf8ceb2ee23260f4138ea28acbf3ae9f2d0d960242f4fb5998d8501368d
[INFO] running `Command { std: "docker" "start" "-a" "558fbaf8ceb2ee23260f4138ea28acbf3ae9f2d0d960242f4fb5998d8501368d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]     Checking castaway v0.2.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling aliri_braid_impl v0.4.0
[INFO] [stderr]     Checking aliri_braid v0.4.0
[INFO] [stderr]     Checking bytestring v1.3.1
[INFO] [stderr]     Checking compact_str v0.7.1
[INFO] [stderr]     Checking aliri_braid_examples v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.49s
[INFO] running `Command { std: "docker" "inspect" "558fbaf8ceb2ee23260f4138ea28acbf3ae9f2d0d960242f4fb5998d8501368d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558fbaf8ceb2ee23260f4138ea28acbf3ae9f2d0d960242f4fb5998d8501368d", kill_on_drop: false }`
[INFO] [stdout] 558fbaf8ceb2ee23260f4138ea28acbf3ae9f2d0d960242f4fb5998d8501368d