[INFO] fetching crate gctree 0.28.0...
[INFO] checking gctree-0.28.0 against master#19dd9535408db0f1ff3d16613619076aef524d19 for pr-115950
[INFO] extracting crate gctree 0.28.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate gctree 0.28.0 on toolchain 19dd9535408db0f1ff3d16613619076aef524d19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gctree 0.28.0
[INFO] finished tweaking crates.io crate gctree 0.28.0
[INFO] tweaked toml for crates.io crate gctree 0.28.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded into-attr-derive v0.2.1
[INFO] [stderr]   Downloaded ioe v0.6.0
[INFO] [stderr]   Downloaded graphviz-rust v0.6.6
[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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1b1e4c22e5a6953c7343d3360fec99423643529a1f8513bfc9b1e528f1b036e
[INFO] running `Command { std: "docker" "start" "-a" "e1b1e4c22e5a6953c7343d3360fec99423643529a1f8513bfc9b1e528f1b036e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1b1e4c22e5a6953c7343d3360fec99423643529a1f8513bfc9b1e528f1b036e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b1e4c22e5a6953c7343d3360fec99423643529a1f8513bfc9b1e528f1b036e", kill_on_drop: false }`
[INFO] [stdout] e1b1e4c22e5a6953c7343d3360fec99423643529a1f8513bfc9b1e528f1b036e
[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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf2244f6e690cad813eeec64398b07620d2e821b76fc5d55bf12d6bf86606e6e
[INFO] running `Command { std: "docker" "start" "-a" "cf2244f6e690cad813eeec64398b07620d2e821b76fc5d55bf12d6bf86606e6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]    Compiling displaydoc v0.2.4
[INFO] [stderr]     Checking ioe v0.6.0
[INFO] [stderr]     Checking thiserror v1.0.48
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking gctree v0.28.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.58s
[INFO] running `Command { std: "docker" "inspect" "cf2244f6e690cad813eeec64398b07620d2e821b76fc5d55bf12d6bf86606e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2244f6e690cad813eeec64398b07620d2e821b76fc5d55bf12d6bf86606e6e", kill_on_drop: false }`
[INFO] [stdout] cf2244f6e690cad813eeec64398b07620d2e821b76fc5d55bf12d6bf86606e6e