[INFO] cloning repository https://github.com/HugoKempfer/knn-recommender [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HugoKempfer/knn-recommender" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoKempfer%2Fknn-recommender", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoKempfer%2Fknn-recommender'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4b10654bc61b6ab218d76df07eb726f03f244cd7 [INFO] checking HugoKempfer/knn-recommender/4b10654bc61b6ab218d76df07eb726f03f244cd7 against master#e08b80c0fb7667bdcd040761891701e576c42ec8 for pr-129021 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoKempfer%2Fknn-recommender" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/HugoKempfer/knn-recommender on toolchain e08b80c0fb7667bdcd040761891701e576c42ec8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e08b80c0fb7667bdcd040761891701e576c42ec8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/HugoKempfer/knn-recommender [INFO] finished tweaking git repo https://github.com/HugoKempfer/knn-recommender [INFO] tweaked toml for git repo https://github.com/HugoKempfer/knn-recommender written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/HugoKempfer/knn-recommender 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" "+e08b80c0fb7667bdcd040761891701e576c42ec8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cc v1.0.63 [INFO] [stderr] Downloaded csv v1.1.4 [INFO] [stderr] Downloaded rustml v0.0.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+e08b80c0fb7667bdcd040761891701e576c42ec8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 89a747a3465ee84b16230b4119dd309ed3d976db6c0a129957a6380ac1b51183 [INFO] running `Command { std: "docker" "start" "-a" "89a747a3465ee84b16230b4119dd309ed3d976db6c0a129957a6380ac1b51183", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "89a747a3465ee84b16230b4119dd309ed3d976db6c0a129957a6380ac1b51183", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89a747a3465ee84b16230b4119dd309ed3d976db6c0a129957a6380ac1b51183", kill_on_drop: false }` [INFO] [stdout] 89a747a3465ee84b16230b4119dd309ed3d976db6c0a129957a6380ac1b51183 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+e08b80c0fb7667bdcd040761891701e576c42ec8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0378336bfb7e0277822ba8aa1662c5ef11697ff454e0f63dc3b4df8b25f6fe6c [INFO] running `Command { std: "docker" "start" "-a" "0378336bfb7e0277822ba8aa1662c5ef11697ff454e0f63dc3b4df8b25f6fe6c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Compiling cc v1.0.63 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/e08b80c0fb7667bdcd040761891701e576c42ec8/library/alloc/src/borrow.rs:179:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking thread_local v0.2.7 [INFO] [stderr] Checking aho-corasick v0.5.3 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Checking regex-syntax v0.3.9 [INFO] [stderr] Compiling miniz-sys v0.1.12 [INFO] [stderr] Compiling rustml v0.0.7 [INFO] [stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "0378336bfb7e0277822ba8aa1662c5ef11697ff454e0f63dc3b4df8b25f6fe6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0378336bfb7e0277822ba8aa1662c5ef11697ff454e0f63dc3b4df8b25f6fe6c", kill_on_drop: false }` [INFO] [stdout] 0378336bfb7e0277822ba8aa1662c5ef11697ff454e0f63dc3b4df8b25f6fe6c