[INFO] crate horned-owl 0.6.0 is already in cache
[INFO] extracting crate horned-owl 0.6.0 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/horned-owl/0.6.0
[INFO] extracting crate horned-owl 0.6.0 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/horned-owl/0.6.0
[INFO] validating manifest of horned-owl-0.6.0 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of horned-owl-0.6.0 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing horned-owl-0.6.0
[INFO] finished frobbing horned-owl-0.6.0
[INFO] frobbed toml for horned-owl-0.6.0 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/horned-owl/0.6.0/Cargo.toml
[INFO] started frobbing horned-owl-0.6.0
[INFO] finished frobbing horned-owl-0.6.0
[INFO] frobbed toml for horned-owl-0.6.0 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/horned-owl/0.6.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking horned-owl-0.6.0 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/horned-owl/0.6.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6412a4dc2abb2c10e6a42aef78867547282db3f2e89f15cb06379f39fe214999
[INFO] running `"docker" "start" "-a" "6412a4dc2abb2c10e6a42aef78867547282db3f2e89f15cb06379f39fe214999"`
[INFO] [stderr]     Checking curie v0.0.8
[INFO] [stderr]     Checking enum_meta v0.6.0
[INFO] [stderr]     Checking quick-xml v0.12.4
[INFO] [stderr]     Checking horned-owl v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io/writer.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |     write: &mut StdWrite,
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn StdWrite`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io/writer.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |     write: &mut StdWrite,
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn StdWrite`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shrink_iri_maybe`
[INFO] [stderr]   --> src/io/writer.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn shrink_iri_maybe<'a>(iri: &str, mapping: &'a PrefixMapping) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `META_OWL2Datatype` should have an upper case name
[INFO] [stderr]   --> src/vocab.rs:78:30
[INFO] [stderr]    |
[INFO] [stderr] 78 |     OWL2Datatype, IRIString, META_OWL2Datatype;
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `META_OWL2_DATATYPE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shrink_iri_maybe`
[INFO] [stderr]   --> src/io/writer.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn shrink_iri_maybe<'a>(iri: &str, mapping: &'a PrefixMapping) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `META_OWL2Datatype` should have an upper case name
[INFO] [stderr]   --> src/vocab.rs:78:30
[INFO] [stderr]    |
[INFO] [stderr] 78 |     OWL2Datatype, IRIString, META_OWL2Datatype;
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `META_OWL2_DATATYPE`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> benches/horned.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let mut b = Build::default();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> benches/horned.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut b = Build::default();
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> benches/horned.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut b = Build::default();
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> benches/horned.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let mut b = Build::default();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> benches/horned.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         horned_owl::io::reader::read(&mut f);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.37s
[INFO] running `"docker" "inspect" "6412a4dc2abb2c10e6a42aef78867547282db3f2e89f15cb06379f39fe214999"`
[INFO] running `"docker" "rm" "-f" "6412a4dc2abb2c10e6a42aef78867547282db3f2e89f15cb06379f39fe214999"`
[INFO] [stdout] 6412a4dc2abb2c10e6a42aef78867547282db3f2e89f15cb06379f39fe214999