[INFO] fetching crate chmlib 1.0.0...
[INFO] checking chmlib-1.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate chmlib 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate chmlib 1.0.0 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 chmlib 1.0.0
[INFO] finished tweaking crates.io crate chmlib 1.0.0
[INFO] tweaked toml for crates.io crate chmlib 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate chmlib 1.0.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.46
[INFO] [stderr]   Downloaded chmlib-sys v1.0.0
[INFO] [stderr]   Downloaded syn v1.0.5
[INFO] [stderr]   Downloaded thiserror-impl v1.0.3
[INFO] [stderr]   Downloaded thiserror v1.0.3
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1b8a55ddc211338618b8c7c9112c3f7b8d1735991115b2025cba86c1cc0d186
[INFO] running `Command { std: "docker" "start" "-a" "f1b8a55ddc211338618b8c7c9112c3f7b8d1735991115b2025cba86c1cc0d186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1b8a55ddc211338618b8c7c9112c3f7b8d1735991115b2025cba86c1cc0d186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b8a55ddc211338618b8c7c9112c3f7b8d1735991115b2025cba86c1cc0d186", kill_on_drop: false }`
[INFO] [stdout] f1b8a55ddc211338618b8c7c9112c3f7b8d1735991115b2025cba86c1cc0d186
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c667d9059da0838136e78fb3b651d992acacbe9f5f8dc69b3aa6be9d7dcf26c3
[INFO] running `Command { std: "docker" "start" "-a" "c667d9059da0838136e78fb3b651d992acacbe9f5f8dc69b3aa6be9d7dcf26c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling chmlib-sys v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.3
[INFO] [stderr]     Checking thiserror v1.0.3
[INFO] [stderr]     Checking chmlib v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |     let mut state = &mut *(state as *mut WrapperState<F>);
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |     let mut state = &mut *(state as *mut WrapperState<F>);
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "c667d9059da0838136e78fb3b651d992acacbe9f5f8dc69b3aa6be9d7dcf26c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c667d9059da0838136e78fb3b651d992acacbe9f5f8dc69b3aa6be9d7dcf26c3", kill_on_drop: false }`
[INFO] [stdout] c667d9059da0838136e78fb3b651d992acacbe9f5f8dc69b3aa6be9d7dcf26c3