[INFO] cloning repository https://github.com/robdimsdale/wordsquare [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robdimsdale/wordsquare" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdimsdale%2Fwordsquare", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdimsdale%2Fwordsquare'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1a5bb9681c3228f4219e6779a9069374575179ad [INFO] checking robdimsdale/wordsquare against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdimsdale%2Fwordsquare" "/workspace/builds/worker-85/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-85/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/robdimsdale/wordsquare on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/robdimsdale/wordsquare [INFO] finished tweaking git repo https://github.com/robdimsdale/wordsquare [INFO] tweaked toml for git repo https://github.com/robdimsdale/wordsquare written to /workspace/builds/worker-85/source/Cargo.toml [INFO] crate git repo https://github.com/robdimsdale/wordsquare already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f3ec34408cd0db05c0a7216426dcfa66d7d823046ee1173e4c62df13439c38e0 [INFO] running `Command { std: "docker" "start" "-a" "f3ec34408cd0db05c0a7216426dcfa66d7d823046ee1173e4c62df13439c38e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f3ec34408cd0db05c0a7216426dcfa66d7d823046ee1173e4c62df13439c38e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3ec34408cd0db05c0a7216426dcfa66d7d823046ee1173e4c62df13439c38e0", kill_on_drop: false }` [INFO] [stdout] f3ec34408cd0db05c0a7216426dcfa66d7d823046ee1173e4c62df13439c38e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2f0c6ea04981b652aaf7f47a1046f4c1cf61462c8963e7751c5303eb62fdc547 [INFO] running `Command { std: "docker" "start" "-a" "2f0c6ea04981b652aaf7f47a1046f4c1cf61462c8963e7751c5303eb62fdc547", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling rayon-core v1.7.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Compiling syn v1.0.33 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling rayon v1.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking serde_json v1.0.56 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Checking wordsearch v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> src/lib.rs:137:41 [INFO] [stdout] | [INFO] [stdout] 137 | row.clone().into_iter().intersperse(' ').collect::() [INFO] [stdout] | ^^^^^^^^^^^ multiple `intersperse` found [INFO] [stdout] | [INFO] [stdout] = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `std::vec::IntoIter` [INFO] [stdout] = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T` [INFO] [stdout] help: disambiguate the associated function for candidate #1 [INFO] [stdout] | [INFO] [stdout] 137 | Iterator::intersperse(row.clone().into_iter(), ' ').collect::() [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] help: disambiguate the associated function for candidate #2 [INFO] [stdout] | [INFO] [stdout] 137 | Itertools::intersperse(row.clone().into_iter(), ' ').collect::() [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0034`. [INFO] [stdout] [INFO] [stderr] error: could not compile `wordsearch` due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "2f0c6ea04981b652aaf7f47a1046f4c1cf61462c8963e7751c5303eb62fdc547", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f0c6ea04981b652aaf7f47a1046f4c1cf61462c8963e7751c5303eb62fdc547", kill_on_drop: false }` [INFO] [stdout] 2f0c6ea04981b652aaf7f47a1046f4c1cf61462c8963e7751c5303eb62fdc547