[INFO] fetching crate k2_tree 0.5.3...
[INFO] checking k2_tree-0.5.3 against try#dfa82e8833199efd2cc0114fed03eab53614a221 for pr-109629
[INFO] extracting crate k2_tree 0.5.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate k2_tree 0.5.3 on toolchain dfa82e8833199efd2cc0114fed03eab53614a221
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dfa82e8833199efd2cc0114fed03eab53614a221" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate k2_tree 0.5.3
[INFO] finished tweaking crates.io crate k2_tree 0.5.3
[INFO] tweaked toml for crates.io crate k2_tree 0.5.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+dfa82e8833199efd2cc0114fed03eab53614a221" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dfa82e8833199efd2cc0114fed03eab53614a221" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:6ef671f6951f6f7b82eaf49ad0b3b99466e493f2d9d82dd96208252612681f61" "/opt/rustwide/cargo-home/bin/cargo" "+dfa82e8833199efd2cc0114fed03eab53614a221" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d7a1f452c194ff60a1d2aa18cf6c5fe47291e40aed8ef37ebda066f67397da1
[INFO] running `Command { std: "docker" "start" "-a" "0d7a1f452c194ff60a1d2aa18cf6c5fe47291e40aed8ef37ebda066f67397da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d7a1f452c194ff60a1d2aa18cf6c5fe47291e40aed8ef37ebda066f67397da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7a1f452c194ff60a1d2aa18cf6c5fe47291e40aed8ef37ebda066f67397da1", kill_on_drop: false }`
[INFO] [stdout] 0d7a1f452c194ff60a1d2aa18cf6c5fe47291e40aed8ef37ebda066f67397da1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:6ef671f6951f6f7b82eaf49ad0b3b99466e493f2d9d82dd96208252612681f61" "/opt/rustwide/cargo-home/bin/cargo" "+dfa82e8833199efd2cc0114fed03eab53614a221" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daf3ab7c4a143e2a3ba1addbce8a012bcebb7ff39361eac5d22f8d94f45cda7d
[INFO] running `Command { std: "docker" "start" "-a" "daf3ab7c4a143e2a3ba1addbce8a012bcebb7ff39361eac5d22f8d94f45cda7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking k2_tree v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.49s
[INFO] running `Command { std: "docker" "inspect" "daf3ab7c4a143e2a3ba1addbce8a012bcebb7ff39361eac5d22f8d94f45cda7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf3ab7c4a143e2a3ba1addbce8a012bcebb7ff39361eac5d22f8d94f45cda7d", kill_on_drop: false }`
[INFO] [stdout] daf3ab7c4a143e2a3ba1addbce8a012bcebb7ff39361eac5d22f8d94f45cda7d