[INFO] fetching crate rdftk_ontology 0.1.0-pre...
[INFO] checking rdftk_ontology-0.1.0-pre against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate rdftk_ontology 0.1.0-pre into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rdftk_ontology 0.1.0-pre on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rdftk_ontology 0.1.0-pre
[INFO] finished tweaking crates.io crate rdftk_ontology 0.1.0-pre
[INFO] tweaked toml for crates.io crate rdftk_ontology 0.1.0-pre written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f7c745bda05c4a8a0fbb29cd86088f970a783bc352684f701d43f49525046d7
[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" "4f7c745bda05c4a8a0fbb29cd86088f970a783bc352684f701d43f49525046d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f7c745bda05c4a8a0fbb29cd86088f970a783bc352684f701d43f49525046d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7c745bda05c4a8a0fbb29cd86088f970a783bc352684f701d43f49525046d7", kill_on_drop: false }`
[INFO] [stdout] 4f7c745bda05c4a8a0fbb29cd86088f970a783bc352684f701d43f49525046d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72e245efb2bfd9f6486c6e16ca3eb56194d3ac4f3f5f9ee31fb22873d133bb11
[INFO] running `Command { std: "docker" "start" "-a" "72e245efb2bfd9f6486c6e16ca3eb56194d3ac4f3f5f9ee31fb22873d133bb11", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking atomic_refcell v0.1.6
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking blob-uuid v0.4.0
[INFO] [stderr]     Checking unique_id v0.1.3
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking rdftk_iri v0.1.4
[INFO] [stderr]     Checking rdftk_names v0.1.7
[INFO] [stderr]     Checking rdftk_core v0.1.12
[INFO] [stderr]     Checking rdftk_ontology v0.1.0-pre (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `prior_version`
[INFO] [stdout]   --> src/owl/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     prior_version: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compatible_with`
[INFO] [stdout]   --> src/owl/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     compatible_with: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `incompatible_with`
[INFO] [stdout]   --> src/owl/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     incompatible_with: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `import`
[INFO] [stdout]   --> src/owl/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     import: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prior_version`
[INFO] [stdout]   --> src/owl/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     prior_version: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compatible_with`
[INFO] [stdout]   --> src/owl/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     compatible_with: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `incompatible_with`
[INFO] [stdout]   --> src/owl/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     incompatible_with: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `import`
[INFO] [stdout]   --> src/owl/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     import: Vec<IRIRef>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.74s
[INFO] running `Command { std: "docker" "inspect" "72e245efb2bfd9f6486c6e16ca3eb56194d3ac4f3f5f9ee31fb22873d133bb11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72e245efb2bfd9f6486c6e16ca3eb56194d3ac4f3f5f9ee31fb22873d133bb11", kill_on_drop: false }`
[INFO] [stdout] 72e245efb2bfd9f6486c6e16ca3eb56194d3ac4f3f5f9ee31fb22873d133bb11