[INFO] fetching crate keon 0.2.0...
[INFO] testing keon-0.2.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate keon 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate keon 0.2.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate keon 0.2.0
[INFO] tweaked toml for crates.io crate keon 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate keon 0.2.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate keon 0.2.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Updating crates.io index
[INFO] [stderr] Downloading crates ...
[INFO] [stderr] Downloaded logos-derive v0.15.0
[INFO] [stderr] Downloaded smol_str v0.3.2
[INFO] [stderr] Downloaded borsh v1.5.3
[INFO] [stderr] Downloaded lexical-core v1.0.2
[INFO] [stderr] Downloaded semver v1.0.25
[INFO] [stderr] Downloaded serde_bytes v0.11.15
[INFO] [stderr] Downloaded lexical-parse-integer v1.0.2
[INFO] [stderr] Downloaded lexical-write-integer v1.0.2
[INFO] [stderr] Downloaded serde_json v1.0.137
[INFO] [stderr] Downloaded logos-codegen v0.15.0
[INFO] [stderr] Downloaded lexical-write-float v1.0.2
[INFO] [stderr] Downloaded lexical-util v1.0.3
[INFO] [stderr] Downloaded lexical-parse-float v1.0.2
[INFO] [stderr] Downloaded logos v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72a07ddb0850c14f516ba0d6497944e42d2a4df7fd028644e988034b34b376c3
[INFO] running `Command { std: "docker" "start" "-a" "72a07ddb0850c14f516ba0d6497944e42d2a4df7fd028644e988034b34b376c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72a07ddb0850c14f516ba0d6497944e42d2a4df7fd028644e988034b34b376c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a07ddb0850c14f516ba0d6497944e42d2a4df7fd028644e988034b34b376c3", kill_on_drop: false }`
[INFO] [stdout] 72a07ddb0850c14f516ba0d6497944e42d2a4df7fd028644e988034b34b376c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af4b3a6524b99633b9d8132794976d9736fb267a1d6ac3cdaf79cdc451591c07
[INFO] running `Command { std: "docker" "start" "-a" "af4b3a6524b99633b9d8132794976d9736fb267a1d6ac3cdaf79cdc451591c07", kill_on_drop: false }`
[INFO] [stderr] Compiling unicode-ident v1.0.13
[INFO] [stderr] Compiling semver v1.0.25
[INFO] [stderr] Compiling static_assertions v1.1.0
[INFO] [stderr] Compiling regex-syntax v0.8.5
[INFO] [stderr] Compiling lazy_static v1.5.0
[INFO] [stderr] Compiling beef v0.5.2
[INFO] [stderr] Compiling fnv v1.0.7
[INFO] [stderr] Compiling serde v1.0.217
[INFO] [stderr] Compiling smol_str v0.3.2
[INFO] [stderr] Compiling data-encoding v2.6.0
[INFO] [stderr] Compiling proc-macro2 v1.0.87
[INFO] [stderr] Compiling lexical-util v1.0.3
[INFO] [stderr] Compiling quote v1.0.37
[INFO] [stderr] Compiling syn v2.0.87
[INFO] [stderr] Compiling rustc_version v0.4.1
[INFO] [stderr] Compiling logos-codegen v0.15.0
[INFO] [stderr] Compiling lexical-parse-integer v1.0.2
[INFO] [stderr] Compiling lexical-write-integer v1.0.2
[INFO] [stderr] Compiling lexical-write-float v1.0.2
[INFO] [stderr] Compiling lexical-parse-float v1.0.2
[INFO] [stderr] Compiling lexical-core v1.0.2
[INFO] [stderr] Compiling serde_derive v1.0.217
[INFO] [stderr] Compiling logos-derive v0.15.0
[INFO] [stderr] Compiling logos v0.15.0
[INFO] [stderr] Compiling keon v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] --> src/de.rs:107:13
[INFO] [stdout] |
[INFO] [stdout] 107 | fn next(&mut self) -> Result