[INFO] fetching crate range-lock 0.2.3...
[INFO] checking range-lock-0.2.3 against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392
[INFO] extracting crate range-lock 0.2.3 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate range-lock 0.2.3 on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate range-lock 0.2.3
[INFO] finished tweaking crates.io crate range-lock 0.2.3
[INFO] tweaked toml for crates.io crate range-lock 0.2.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e058a263517a0a22135d7430bbdadddce2fb0e2b5c603b7aa41f498b2824789
[INFO] running `Command { std: "docker" "start" "-a" "3e058a263517a0a22135d7430bbdadddce2fb0e2b5c603b7aa41f498b2824789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e058a263517a0a22135d7430bbdadddce2fb0e2b5c603b7aa41f498b2824789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e058a263517a0a22135d7430bbdadddce2fb0e2b5c603b7aa41f498b2824789", kill_on_drop: false }`
[INFO] [stdout] 3e058a263517a0a22135d7430bbdadddce2fb0e2b5c603b7aa41f498b2824789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f451795f8e56ad63b3c20c50b78c8d75c66b658d43c59426ac85e09ebe3306f
[INFO] running `Command { std: "docker" "start" "-a" "5f451795f8e56ad63b3c20c50b78c8d75c66b658d43c59426ac85e09ebe3306f", kill_on_drop: false }`
[INFO] [stderr]     Checking range-lock v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rangelock.rs:377:25
[INFO] [stdout]     |
[INFO] [stdout] 377 |     struct NoSyncStruct(RefCell<u32>); // No Sync auto-trait.
[INFO] [stdout]     |            ------------ ^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/reprangelock.rs:490:25
[INFO] [stdout]     |
[INFO] [stdout] 490 |     struct NoSyncStruct(RefCell<u32>); // No Sync auto-trait.
[INFO] [stdout]     |            ------------ ^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "5f451795f8e56ad63b3c20c50b78c8d75c66b658d43c59426ac85e09ebe3306f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f451795f8e56ad63b3c20c50b78c8d75c66b658d43c59426ac85e09ebe3306f", kill_on_drop: false }`
[INFO] [stdout] 5f451795f8e56ad63b3c20c50b78c8d75c66b658d43c59426ac85e09ebe3306f