[INFO] fetching crate fastcdc 3.1.0...
[INFO] checking fastcdc-3.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate fastcdc 3.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate fastcdc 3.1.0 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 fastcdc 3.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fastcdc 3.1.0
[INFO] tweaked toml for crates.io crate fastcdc 3.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate fastcdc 3.1.0 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v1.15.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.64
[INFO] [stderr]   Downloaded quote v1.0.29
[INFO] [stderr]   Downloaded pin-project-internal v1.1.2
[INFO] [stderr]   Downloaded futures-test v0.3.28
[INFO] [stderr]   Downloaded pin-project v1.1.2
[INFO] [stderr]   Downloaded md-5 v0.10.5
[INFO] [stderr]   Downloaded hermit-abi v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 95b174290da7a8f5f8a0340d654a6975d1cc73821083ab6af949cb61f7c60f27
[INFO] running `Command { std: "docker" "start" "-a" "95b174290da7a8f5f8a0340d654a6975d1cc73821083ab6af949cb61f7c60f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95b174290da7a8f5f8a0340d654a6975d1cc73821083ab6af949cb61f7c60f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b174290da7a8f5f8a0340d654a6975d1cc73821083ab6af949cb61f7c60f27", kill_on_drop: false }`
[INFO] [stdout] 95b174290da7a8f5f8a0340d654a6975d1cc73821083ab6af949cb61f7c60f27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a6ad08b145fef6500d6f7132e43b518b465821620b92bdea89aa333d7e3ba349
[INFO] running `Command { std: "docker" "start" "-a" "a6ad08b145fef6500d6f7132e43b518b465821620b92bdea89aa333d7e3ba349", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking fastcdc v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking clap_builder v4.3.12
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking md-5 v0.10.5
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking clap v4.3.12
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking pin-project v1.1.2
[INFO] [stderr]     Checking futures-test v0.3.28
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.42s
[INFO] running `Command { std: "docker" "inspect" "a6ad08b145fef6500d6f7132e43b518b465821620b92bdea89aa333d7e3ba349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ad08b145fef6500d6f7132e43b518b465821620b92bdea89aa333d7e3ba349", kill_on_drop: false }`
[INFO] [stdout] a6ad08b145fef6500d6f7132e43b518b465821620b92bdea89aa333d7e3ba349
[INFO] checking fastcdc-3.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate fastcdc 3.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate fastcdc 3.1.0 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 fastcdc 3.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fastcdc 3.1.0
[INFO] tweaked toml for crates.io crate fastcdc 3.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate fastcdc 3.1.0 already has a lockfile, it will not be regenerated
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5eb387fa7abf30392b49c31221e33fc03e1b5b7a6f3bb33a5b21b0c31dc5c3c4
[INFO] running `Command { std: "docker" "start" "-a" "5eb387fa7abf30392b49c31221e33fc03e1b5b7a6f3bb33a5b21b0c31dc5c3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5eb387fa7abf30392b49c31221e33fc03e1b5b7a6f3bb33a5b21b0c31dc5c3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eb387fa7abf30392b49c31221e33fc03e1b5b7a6f3bb33a5b21b0c31dc5c3c4", kill_on_drop: false }`
[INFO] [stdout] 5eb387fa7abf30392b49c31221e33fc03e1b5b7a6f3bb33a5b21b0c31dc5c3c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2dc576ef8b0ee27085c075e62358bb240749fa93b05ebea3ea79b4b20b84fea1
[INFO] running `Command { std: "docker" "start" "-a" "2dc576ef8b0ee27085c075e62358bb240749fa93b05ebea3ea79b4b20b84fea1", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking fastcdc v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.12
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking md-5 v0.10.5
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking clap v4.3.12
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking pin-project v1.1.2
[INFO] [stderr]     Checking futures-test v0.3.28
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.77s
[INFO] running `Command { std: "docker" "inspect" "2dc576ef8b0ee27085c075e62358bb240749fa93b05ebea3ea79b4b20b84fea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc576ef8b0ee27085c075e62358bb240749fa93b05ebea3ea79b4b20b84fea1", kill_on_drop: false }`
[INFO] [stdout] 2dc576ef8b0ee27085c075e62358bb240749fa93b05ebea3ea79b4b20b84fea1