[INFO] fetching crate wordcut-engine 0.2.0...
[INFO] checking wordcut-engine-0.2.0 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate wordcut-engine 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate wordcut-engine 0.2.0 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wordcut-engine 0.2.0
[INFO] finished tweaking crates.io crate wordcut-engine 0.2.0
[INFO] tweaked toml for crates.io crate wordcut-engine 0.2.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa94309a7fc36510500d3ab747902ed17dd27ad6d7dec5b67157575f3e13e2ce
[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" "fa94309a7fc36510500d3ab747902ed17dd27ad6d7dec5b67157575f3e13e2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa94309a7fc36510500d3ab747902ed17dd27ad6d7dec5b67157575f3e13e2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa94309a7fc36510500d3ab747902ed17dd27ad6d7dec5b67157575f3e13e2ce", kill_on_drop: false }`
[INFO] [stdout] fa94309a7fc36510500d3ab747902ed17dd27ad6d7dec5b67157575f3e13e2ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b97af7a10c50771ce3b2cf60109bd9fc4c19da6b7aeadbd48cb0c5ec47d157f4
[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" "b97af7a10c50771ce3b2cf60109bd9fc4c19da6b7aeadbd48cb0c5ec47d157f4", kill_on_drop: false }`
[INFO] [stderr]     Checking prefixtree v0.1.3
[INFO] [stderr]     Checking wordcut-engine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:22
[INFO] [stdout]    |
[INFO] [stdout] 90 | type CharPredicate = Fn(char) -> bool;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:357:31
[INFO] [stdout]     |
[INFO] [stdout] 357 |     let mut builders: Vec<Box<EdgeBuilder>> =
[INFO] [stdout]     |                               ^^^^^^^^^^^ help: use `dyn`: `dyn EdgeBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:452:31
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let mut builders: Vec<Box<DagEdgeBuilder>> =
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn DagEdgeBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:22
[INFO] [stdout]    |
[INFO] [stdout] 90 | type CharPredicate = Fn(char) -> bool;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(char) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:357:31
[INFO] [stdout]     |
[INFO] [stdout] 357 |     let mut builders: Vec<Box<EdgeBuilder>> =
[INFO] [stdout]     |                               ^^^^^^^^^^^ help: use `dyn`: `dyn EdgeBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:452:31
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let mut builders: Vec<Box<DagEdgeBuilder>> =
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn DagEdgeBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/lib.rs:217:1
[INFO] [stdout]     |
[INFO] [stdout] 217 | / lazy_static! {
[INFO] [stdout] 218 | |     static ref PUNC_SET: HashSet<char> = {
[INFO] [stdout] 219 | |         let mut m = HashSet::new();
[INFO] [stdout] 220 | |         m.insert(' ');
[INFO] [stdout] ...   |
[INFO] [stdout] 230 | |     };
[INFO] [stdout] 231 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/lib.rs:217:1
[INFO] [stdout]     |
[INFO] [stdout] 217 | / lazy_static! {
[INFO] [stdout] 218 | |     static ref PUNC_SET: HashSet<char> = {
[INFO] [stdout] 219 | |         let mut m = HashSet::new();
[INFO] [stdout] 220 | |         m.insert(' ');
[INFO] [stdout] ...   |
[INFO] [stdout] 230 | |     };
[INFO] [stdout] 231 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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 0.97s
[INFO] running `Command { std: "docker" "inspect" "b97af7a10c50771ce3b2cf60109bd9fc4c19da6b7aeadbd48cb0c5ec47d157f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97af7a10c50771ce3b2cf60109bd9fc4c19da6b7aeadbd48cb0c5ec47d157f4", kill_on_drop: false }`
[INFO] [stdout] b97af7a10c50771ce3b2cf60109bd9fc4c19da6b7aeadbd48cb0c5ec47d157f4