[INFO] fetching crate vtracker 1.0.0...
[INFO] building vtracker-1.0.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate vtracker 1.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate vtracker 1.0.0
[INFO] finished tweaking crates.io crate vtracker 1.0.0
[INFO] tweaked toml for crates.io crate vtracker 1.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vtracker 1.0.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b917798a6225ca98d8fedff258308b8efb45e9ce6b4a6db191ea28eb9a11d409
[INFO] running `Command { std: "docker" "start" "-a" "b917798a6225ca98d8fedff258308b8efb45e9ce6b4a6db191ea28eb9a11d409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b917798a6225ca98d8fedff258308b8efb45e9ce6b4a6db191ea28eb9a11d409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b917798a6225ca98d8fedff258308b8efb45e9ce6b4a6db191ea28eb9a11d409", kill_on_drop: false }`
[INFO] [stdout] b917798a6225ca98d8fedff258308b8efb45e9ce6b4a6db191ea28eb9a11d409
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efd3b5128c7983c8ff8106c8c01c95eac2bc19c6ae52d9764d02df834020feed
[INFO] running `Command { std: "docker" "start" "-a" "efd3b5128c7983c8ff8106c8c01c95eac2bc19c6ae52d9764d02df834020feed", kill_on_drop: false }`
[INFO] [stderr]    Compiling vtracker v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `test_init_v_tracker` is never used
[INFO] [stdout]    --> src/vtracker.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn test_init_v_tracker() -> VTracker {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "efd3b5128c7983c8ff8106c8c01c95eac2bc19c6ae52d9764d02df834020feed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd3b5128c7983c8ff8106c8c01c95eac2bc19c6ae52d9764d02df834020feed", kill_on_drop: false }`
[INFO] [stdout] efd3b5128c7983c8ff8106c8c01c95eac2bc19c6ae52d9764d02df834020feed
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2a17b452fe0c530999a4469a3c5a8d1a6076439311a7902d67a85de9722ddd8
[INFO] running `Command { std: "docker" "start" "-a" "d2a17b452fe0c530999a4469a3c5a8d1a6076439311a7902d67a85de9722ddd8", kill_on_drop: false }`
[INFO] [stdout] warning: function `test_init_v_tracker` is never used
[INFO] [stdout]    --> src/vtracker.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn test_init_v_tracker() -> VTracker {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vtracker v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "d2a17b452fe0c530999a4469a3c5a8d1a6076439311a7902d67a85de9722ddd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a17b452fe0c530999a4469a3c5a8d1a6076439311a7902d67a85de9722ddd8", kill_on_drop: false }`
[INFO] [stdout] d2a17b452fe0c530999a4469a3c5a8d1a6076439311a7902d67a85de9722ddd8