[INFO] fetching crate keon 0.2.0...
[INFO] testing keon-0.2.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate keon 0.2.0 into /workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate keon 0.2.0 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 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d5e945fd37084871b0a37774b84c12fdad5121d9f9f5973cd66ff44fdec4d832
[INFO] running `Command { std: "docker" "start" "-a" "d5e945fd37084871b0a37774b84c12fdad5121d9f9f5973cd66ff44fdec4d832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5e945fd37084871b0a37774b84c12fdad5121d9f9f5973cd66ff44fdec4d832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e945fd37084871b0a37774b84c12fdad5121d9f9f5973cd66ff44fdec4d832", kill_on_drop: false }`
[INFO] [stdout] d5e945fd37084871b0a37774b84c12fdad5121d9f9f5973cd66ff44fdec4d832
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b024445e825a782260a1fe5262e8e0814bdac9d042b117b471e7d8784a4e9852
[INFO] running `Command { std: "docker" "start" "-a" "b024445e825a782260a1fe5262e8e0814bdac9d042b117b471e7d8784a4e9852", kill_on_drop: false }`
[INFO] [stderr] Compiling unicode-ident v1.0.13
[INFO] [stderr] Compiling semver v1.0.25
[INFO] [stderr] Compiling beef v0.5.2
[INFO] [stderr] Compiling regex-syntax v0.8.5
[INFO] [stderr] Compiling serde v1.0.217
[INFO] [stderr] Compiling data-encoding v2.6.0
[INFO] [stderr] Compiling smol_str v0.3.2
[INFO] [stderr] Compiling lexical-util v1.0.3
[INFO] [stderr] Compiling proc-macro2 v1.0.87
[INFO] [stderr] Compiling rustc_version v0.4.1
[INFO] [stderr] Compiling quote v1.0.37
[INFO] [stderr] Compiling logos-codegen v0.15.0
[INFO] [stderr] Compiling lexical-write-integer v1.0.2
[INFO] [stderr] Compiling lexical-parse-integer v1.0.2
[INFO] [stderr] Compiling syn v2.0.87
[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