[INFO] fetching crate rust-tools 0.3.1...
[INFO] checking rust-tools-0.3.1 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate rust-tools 0.3.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rust-tools 0.3.1 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-tools 0.3.1
[INFO] finished tweaking crates.io crate rust-tools 0.3.1
[INFO] tweaked toml for crates.io crate rust-tools 0.3.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate rust-tools 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c611146034da91d0493050ca5db7e1a0e5ec0e3a4f4e9971897ac694a70aba2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c611146034da91d0493050ca5db7e1a0e5ec0e3a4f4e9971897ac694a70aba2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c611146034da91d0493050ca5db7e1a0e5ec0e3a4f4e9971897ac694a70aba2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c611146034da91d0493050ca5db7e1a0e5ec0e3a4f4e9971897ac694a70aba2d", kill_on_drop: false }`
[INFO] [stdout] c611146034da91d0493050ca5db7e1a0e5ec0e3a4f4e9971897ac694a70aba2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d16523447d88a7356e253c1255f1a0841767e25fb142397d2689fdc04d622e45
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d16523447d88a7356e253c1255f1a0841767e25fb142397d2689fdc04d622e45", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-tools v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `InvalidConfigurationFile`
[INFO] [stdout]  --> src/error.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   InvalidConfigurationFile,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[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: variant is never constructed: `InvalidConfigurationFile`
[INFO] [stdout]  --> src/error.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   InvalidConfigurationFile,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[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 0.84s
[INFO] running `Command { std: "docker" "inspect" "d16523447d88a7356e253c1255f1a0841767e25fb142397d2689fdc04d622e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d16523447d88a7356e253c1255f1a0841767e25fb142397d2689fdc04d622e45", kill_on_drop: false }`
[INFO] [stdout] d16523447d88a7356e253c1255f1a0841767e25fb142397d2689fdc04d622e45