[INFO] fetching crate matchgen 0.4.0...
[INFO] testing matchgen-0.4.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate matchgen 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate matchgen 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate matchgen 0.4.0
[INFO] tweaked toml for crates.io crate matchgen 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matchgen 0.4.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate matchgen 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d69ee194730d2e462aa3973bf2974a06b3a318f9cd0372c3bcc9f04b9734010b
[INFO] running `Command { std: "docker" "start" "-a" "d69ee194730d2e462aa3973bf2974a06b3a318f9cd0372c3bcc9f04b9734010b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d69ee194730d2e462aa3973bf2974a06b3a318f9cd0372c3bcc9f04b9734010b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d69ee194730d2e462aa3973bf2974a06b3a318f9cd0372c3bcc9f04b9734010b", kill_on_drop: false }`
[INFO] [stdout] d69ee194730d2e462aa3973bf2974a06b3a318f9cd0372c3bcc9f04b9734010b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6575d20b45142b44ae462f9470cbaf123b5eafa9e6f0cd4840ed803e9d7359b1
[INFO] running `Command { std: "docker" "start" "-a" "6575d20b45142b44ae462f9470cbaf123b5eafa9e6f0cd4840ed803e9d7359b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling matchgen v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "6575d20b45142b44ae462f9470cbaf123b5eafa9e6f0cd4840ed803e9d7359b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6575d20b45142b44ae462f9470cbaf123b5eafa9e6f0cd4840ed803e9d7359b1", kill_on_drop: false }`
[INFO] [stdout] 6575d20b45142b44ae462f9470cbaf123b5eafa9e6f0cd4840ed803e9d7359b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc4ad8f3218c196303963d91f9a928423fb5d44aebc448450896e23949a3f698
[INFO] running `Command { std: "docker" "start" "-a" "cc4ad8f3218c196303963d91f9a928423fb5d44aebc448450896e23949a3f698", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling os_str_bytes v6.5.0
[INFO] [stderr]    Compiling ciborium-io v0.2.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling ciborium-ll v0.2.1
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex v1.8.3
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling pretty_assertions v1.3.0
[INFO] [stderr]    Compiling temp-dir v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.163
[INFO] [stderr]    Compiling ciborium v0.2.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.4.0
[INFO] [stderr]    Compiling matchgen v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 42.92s
[INFO] running `Command { std: "docker" "inspect" "cc4ad8f3218c196303963d91f9a928423fb5d44aebc448450896e23949a3f698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc4ad8f3218c196303963d91f9a928423fb5d44aebc448450896e23949a3f698", kill_on_drop: false }`
[INFO] [stdout] cc4ad8f3218c196303963d91f9a928423fb5d44aebc448450896e23949a3f698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f29d08893e0cac845273d9e5f340def383a94a352d57c0215c388ed9ed7c65c
[INFO] running `Command { std: "docker" "start" "-a" "6f29d08893e0cac845273d9e5f340def383a94a352d57c0215c388ed9ed7c65c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matchgen-45d061d7ed010c55)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests matchgen
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher (line 26) ... ignored
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher (line 67) ... ignored
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::add (line 148) ... ok
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::return_index (line 182) ... ignored
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::return_slice (line 166) ... ignored
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::doc_raw (line 338) ... ok
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::doc_option (line 378) ... ok
[INFO] [stdout] test src/tree.rs - tree::Input::Iterator (line 713) ... ignored
[INFO] [stdout] test src/tree.rs - tree::Input::Slice (line 686) ... ignored
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::render (line 474) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher (line 38) ... ignored
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::must_use (line 222) ... ok
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::remove_doc (line 256) ... ok
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher (line 40) ... ok
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::doc (line 294) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::add (line 117) ... ok
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::write_to_out_dir (line 416) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher (line 18) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::doc (line 316) ... ok
[INFO] [stdout] test src/flat.rs - flat::FlatMatcher::write_to_path (line 452) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::doc_option (line 408) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::collapse_nested_single_arms (line 137) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::doc_raw (line 364) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::extend (line 643) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::collapse_nested_single_arms (line 166) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::must_use (line 225) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeNode::add (line 765) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeNode::render_iter (line 803) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::remove_doc (line 274) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeNode::render_slice (line 995) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::write_to_out_dir (line 448) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::write_to_path (line 484) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeMatcher::render (line 506) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 7 ignored; 0 measured; 0 filtered out; finished in 5.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f29d08893e0cac845273d9e5f340def383a94a352d57c0215c388ed9ed7c65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f29d08893e0cac845273d9e5f340def383a94a352d57c0215c388ed9ed7c65c", kill_on_drop: false }`
[INFO] [stdout] 6f29d08893e0cac845273d9e5f340def383a94a352d57c0215c388ed9ed7c65c