[INFO] fetching crate saku 0.1.6...
[INFO] checking saku-0.1.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate saku 0.1.6 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate saku 0.1.6 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate saku 0.1.6
[INFO] finished tweaking crates.io crate saku 0.1.6
[INFO] tweaked toml for crates.io crate saku 0.1.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 117 packages
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding cpp_demangle v0.3.5 (latest: v0.4.3)
[INFO] [stderr]       Adding criterion v0.3.6 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.4.5 (latest: v0.5.0)
[INFO] [stderr]       Adding debugid v0.7.3 (latest: v0.8.0)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding inferno v0.10.12 (latest: v0.11.19)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding memmap2 v0.5.10 (latest: v0.9.4)
[INFO] [stderr]       Adding memoffset v0.6.5 (latest: v0.9.1)
[INFO] [stderr]       Adding nix v0.23.2 (latest: v0.28.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding parking_lot v0.11.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (latest: v0.9.9)
[INFO] [stderr]       Adding pprof v0.6.2 (latest: v0.13.0)
[INFO] [stderr]       Adding quick-xml v0.22.0 (latest: v0.31.0)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding symbolic-common v8.8.0 (latest: v12.8.0)
[INFO] [stderr]       Adding symbolic-demangle v8.8.0 (latest: v12.8.0)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symbolic-demangle v8.8.0
[INFO] [stderr]   Downloaded symbolic-common v8.8.0
[INFO] [stderr]   Downloaded pprof v0.6.2
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50f6a47c2f469342c87b9fedc57ffced1b1b3dc5ae171b43402d68a869024fa3
[INFO] running `Command { std: "docker" "start" "-a" "50f6a47c2f469342c87b9fedc57ffced1b1b3dc5ae171b43402d68a869024fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50f6a47c2f469342c87b9fedc57ffced1b1b3dc5ae171b43402d68a869024fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f6a47c2f469342c87b9fedc57ffced1b1b3dc5ae171b43402d68a869024fa3", kill_on_drop: false }`
[INFO] [stdout] 50f6a47c2f469342c87b9fedc57ffced1b1b3dc5ae171b43402d68a869024fa3
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd190813612d8c326a27b0184639ceb38b43509c3a8f65cb1bcbe56f0860deef
[INFO] running `Command { std: "docker" "start" "-a" "cd190813612d8c326a27b0184639ceb38b43509c3a8f65cb1bcbe56f0860deef", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling symbolic-demangle v8.8.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking debugid v0.7.3
[INFO] [stderr]     Checking rgb v0.8.37
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking symbolic-common v8.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling pprof v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking saku v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking inferno v0.10.12
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "cd190813612d8c326a27b0184639ceb38b43509c3a8f65cb1bcbe56f0860deef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd190813612d8c326a27b0184639ceb38b43509c3a8f65cb1bcbe56f0860deef", kill_on_drop: false }`
[INFO] [stdout] cd190813612d8c326a27b0184639ceb38b43509c3a8f65cb1bcbe56f0860deef