[INFO] fetching crate matter-cli 0.1.0-alpha1...
[INFO] checking matter-cli-0.1.0-alpha1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate matter-cli 0.1.0-alpha1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate matter-cli 0.1.0-alpha1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matter-cli 0.1.0-alpha1
[INFO] finished tweaking crates.io crate matter-cli 0.1.0-alpha1
[INFO] tweaked toml for crates.io crate matter-cli 0.1.0-alpha1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Downloading crates ...
[INFO] [stderr] Downloaded matter v0.1.0-alpha3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6f0e86a065db8a92efb9331803b60bad35a6d65ad62ec70fe9a8090529fbe58
[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" "c6f0e86a065db8a92efb9331803b60bad35a6d65ad62ec70fe9a8090529fbe58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6f0e86a065db8a92efb9331803b60bad35a6d65ad62ec70fe9a8090529fbe58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f0e86a065db8a92efb9331803b60bad35a6d65ad62ec70fe9a8090529fbe58", kill_on_drop: false }`
[INFO] [stdout] c6f0e86a065db8a92efb9331803b60bad35a6d65ad62ec70fe9a8090529fbe58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43e43b82f9cbaebf35c363b8f5b7f7a252dd7dbbfa55a5806df9896f7e626816
[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" "43e43b82f9cbaebf35c363b8f5b7f7a252dd7dbbfa55a5806df9896f7e626816", kill_on_drop: false }`
[INFO] [stderr] Compiling proc-macro2 v1.0.26
[INFO] [stderr] Compiling unicode-xid v0.2.1
[INFO] [stderr] Compiling version_check v0.9.3
[INFO] [stderr] Compiling syn v1.0.69
[INFO] [stderr] Compiling bitflags v1.2.1
[INFO] [stderr] Compiling proc-macro2 v0.4.30
[INFO] [stderr] Compiling memchr v2.3.4
[INFO] [stderr] Compiling ryu v1.0.5
[INFO] [stderr] Compiling serde_json v1.0.64
[INFO] [stderr] Checking itoa v0.4.7
[INFO] [stderr] Checking regex-syntax v0.6.23
[INFO] [stderr] Checking lazy_static v1.4.0
[INFO] [stderr] Checking serde_yaml v0.8.17
[INFO] [stderr] Checking toml v0.5.8
[INFO] [stderr] Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr] Compiling proc-macro-error v1.0.4
[INFO] [stderr] Checking clap v2.33.3
[INFO] [stderr] Checking aho-corasick v0.7.15
[INFO] [stderr] Compiling quote v1.0.9
[INFO] [stderr] Compiling quote v0.6.13
[INFO] [stderr] Compiling syn v0.15.44
[INFO] [stderr] Checking regex v1.4.5
[INFO] [stderr] Compiling structopt-derive v0.2.18
[INFO] [stderr] Checking structopt v0.2.18
[INFO] [stderr] Compiling structopt-derive v0.4.14
[INFO] [stderr] Compiling thiserror-impl v1.0.24
[INFO] [stderr] Checking thiserror v1.0.24
[INFO] [stderr] Checking structopt v0.3.21
[INFO] [stderr] Checking matter v0.1.0-alpha3
[INFO] [stderr] Checking matter-cli v0.1.0-alpha1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout] --> src/main.rs:32:9
[INFO] [stdout] |
[INFO] [stdout] 31 | match matter::extract(&contents) {
[INFO] [stdout] | -------------------------- this expression has type `Result