[INFO] fetching crate rdftk_ontology 0.1.0-pre...
[INFO] checking rdftk_ontology-0.1.0-pre against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate rdftk_ontology 0.1.0-pre into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rdftk_ontology 0.1.0-pre on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", 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] 17fd084565ec2c82fc9f1d58c80a9a98f0ff6cb432ab6c8a824348a286cc2700
[INFO] running `Command { std: "docker" "start" "-a" "17fd084565ec2c82fc9f1d58c80a9a98f0ff6cb432ab6c8a824348a286cc2700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17fd084565ec2c82fc9f1d58c80a9a98f0ff6cb432ab6c8a824348a286cc2700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17fd084565ec2c82fc9f1d58c80a9a98f0ff6cb432ab6c8a824348a286cc2700", kill_on_drop: false }`
[INFO] [stdout] 17fd084565ec2c82fc9f1d58c80a9a98f0ff6cb432ab6c8a824348a286cc2700
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 822d8c0f018b56e2027fbc0fd3abdd76d8e1cb2411f4d38329b39cd31f990bfd
[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" "822d8c0f018b56e2027fbc0fd3abdd76d8e1cb2411f4d38329b39cd31f990bfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking atomic_refcell v0.1.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]     Checking getrandom v0.2.3
[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 regex v1.5.4
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]     Checking rdftk_iri v0.1.6
[INFO] [stderr]     Checking rdftk_names v0.1.8
[INFO] [stderr]     Checking rdftk_core v0.1.14
[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: 4 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.69s
[INFO] running `Command { std: "docker" "inspect" "822d8c0f018b56e2027fbc0fd3abdd76d8e1cb2411f4d38329b39cd31f990bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "822d8c0f018b56e2027fbc0fd3abdd76d8e1cb2411f4d38329b39cd31f990bfd", kill_on_drop: false }`
[INFO] [stdout] 822d8c0f018b56e2027fbc0fd3abdd76d8e1cb2411f4d38329b39cd31f990bfd