[INFO] fetching crate include-merkle 0.1.4...
[INFO] checking include-merkle-0.1.4 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate include-merkle 0.1.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate include-merkle 0.1.4 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate include-merkle 0.1.4
[INFO] finished tweaking crates.io crate include-merkle 0.1.4
[INFO] tweaked toml for crates.io crate include-merkle 0.1.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eda7bb993a4f3d906017485b71392c7c846cbd2ea9c8f2f8a66a94dc7b746257
[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" "eda7bb993a4f3d906017485b71392c7c846cbd2ea9c8f2f8a66a94dc7b746257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eda7bb993a4f3d906017485b71392c7c846cbd2ea9c8f2f8a66a94dc7b746257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eda7bb993a4f3d906017485b71392c7c846cbd2ea9c8f2f8a66a94dc7b746257", kill_on_drop: false }`
[INFO] [stdout] eda7bb993a4f3d906017485b71392c7c846cbd2ea9c8f2f8a66a94dc7b746257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c715d13da1eb0a299369206063ebc78a9725343374a11602ca3fda2f6fc6440c
[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" "c715d13da1eb0a299369206063ebc78a9725343374a11602ca3fda2f6fc6440c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking chardet v0.2.4
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking tint v1.0.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking ptree v0.2.1
[INFO] [stderr]     Checking include-merkle v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.05s
[INFO] running `Command { std: "docker" "inspect" "c715d13da1eb0a299369206063ebc78a9725343374a11602ca3fda2f6fc6440c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c715d13da1eb0a299369206063ebc78a9725343374a11602ca3fda2f6fc6440c", kill_on_drop: false }`
[INFO] [stdout] c715d13da1eb0a299369206063ebc78a9725343374a11602ca3fda2f6fc6440c