[INFO] fetching crate minfac 0.0.1...
[INFO] checking minfac-0.0.1 against master#74c3f5a146860c94ff4d179fc3bfa34f879adf41 for pr-120248
[INFO] extracting crate minfac 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate minfac 0.0.1 on toolchain 74c3f5a146860c94ff4d179fc3bfa34f879adf41
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minfac 0.0.1
[INFO] finished tweaking crates.io crate minfac 0.0.1
[INFO] tweaked toml for crates.io crate minfac 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate minfac 0.0.1 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" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "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-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" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d63626c246b56dade125d9cb562522ef68c3b41d4448a122954bb93718e777a
[INFO] running `Command { std: "docker" "start" "-a" "2d63626c246b56dade125d9cb562522ef68c3b41d4448a122954bb93718e777a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d63626c246b56dade125d9cb562522ef68c3b41d4448a122954bb93718e777a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d63626c246b56dade125d9cb562522ef68c3b41d4448a122954bb93718e777a", kill_on_drop: false }`
[INFO] [stdout] 2d63626c246b56dade125d9cb562522ef68c3b41d4448a122954bb93718e777a
[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" "+74c3f5a146860c94ff4d179fc3bfa34f879adf41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2aa433e8ef172f27b313707ad4ecca3047405bcc158da15c0728f15c70d77917
[INFO] running `Command { std: "docker" "start" "-a" "2aa433e8ef172f27b313707ad4ecca3047405bcc158da15c0728f15c70d77917", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking minfac v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `debug_type` is never read
[INFO] [stdout]   --> src/untyped.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct UntypedPointer {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 68 |     debug_type: TypeId,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UntypedPointer` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `debug_type` is never read
[INFO] [stdout]   --> src/untyped.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct UntypedPointer {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 68 |     debug_type: TypeId,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UntypedPointer` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "2aa433e8ef172f27b313707ad4ecca3047405bcc158da15c0728f15c70d77917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa433e8ef172f27b313707ad4ecca3047405bcc158da15c0728f15c70d77917", kill_on_drop: false }`
[INFO] [stdout] 2aa433e8ef172f27b313707ad4ecca3047405bcc158da15c0728f15c70d77917