[INFO] fetching crate jrsonnet-gc 0.4.2...
[INFO] checking jrsonnet-gc-0.4.2 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate jrsonnet-gc 0.4.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate jrsonnet-gc 0.4.2 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jrsonnet-gc 0.4.2
[INFO] finished tweaking crates.io crate jrsonnet-gc 0.4.2
[INFO] tweaked toml for crates.io crate jrsonnet-gc 0.4.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59ab66e9f86e2b2517e65db262c28ed4c1746ede7c7ed1a7c4e82a455ebb6213
[INFO] running `Command { std: "docker" "start" "-a" "59ab66e9f86e2b2517e65db262c28ed4c1746ede7c7ed1a7c4e82a455ebb6213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59ab66e9f86e2b2517e65db262c28ed4c1746ede7c7ed1a7c4e82a455ebb6213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59ab66e9f86e2b2517e65db262c28ed4c1746ede7c7ed1a7c4e82a455ebb6213", kill_on_drop: false }`
[INFO] [stdout] 59ab66e9f86e2b2517e65db262c28ed4c1746ede7c7ed1a7c4e82a455ebb6213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59e40e092d03f1b101ee5c368b3b5c8d10005d13f8002998cfc5abde2a0741d7
[INFO] running `Command { std: "docker" "start" "-a" "59e40e092d03f1b101ee5c368b3b5c8d10005d13f8002998cfc5abde2a0741d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-xid v0.2.5
[INFO] [stderr]     Checking jrsonnet-gc v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling jrsonnet-gc-derive v0.4.1
[INFO] [stdout] warning: struct `X` is never constructed
[INFO] [stdout]   --> tests/finalize.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct X(Box<dyn Trace>);
[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: struct `InnerBoxSlice` is never constructed
[INFO] [stdout]   --> tests/trace_impl.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct InnerBoxSlice {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InnerBoxStr` is never constructed
[INFO] [stdout]   --> tests/trace_impl.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct InnerBoxStr {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InnerRcSlice` is never constructed
[INFO] [stdout]   --> tests/trace_impl.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct InnerRcSlice {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InnerRcStr` is never constructed
[INFO] [stdout]   --> tests/trace_impl.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct InnerRcStr {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.95s
[INFO] running `Command { std: "docker" "inspect" "59e40e092d03f1b101ee5c368b3b5c8d10005d13f8002998cfc5abde2a0741d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59e40e092d03f1b101ee5c368b3b5c8d10005d13f8002998cfc5abde2a0741d7", kill_on_drop: false }`
[INFO] [stdout] 59e40e092d03f1b101ee5c368b3b5c8d10005d13f8002998cfc5abde2a0741d7