[INFO] fetching crate finalfusion 0.15.0... [INFO] checking finalfusion-0.15.0 against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231 [INFO] extracting crate finalfusion 0.15.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate finalfusion 0.15.0 on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate finalfusion 0.15.0 [INFO] finished tweaking crates.io crate finalfusion 0.15.0 [INFO] tweaked toml for crates.io crate finalfusion 0.15.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded reductive v0.6.0 [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] acdbe3ddb4f9d5615de1b4e69e72d2ac4daacf34b0433b555a7629a21ac3df1b [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" "acdbe3ddb4f9d5615de1b4e69e72d2ac4daacf34b0433b555a7629a21ac3df1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "acdbe3ddb4f9d5615de1b4e69e72d2ac4daacf34b0433b555a7629a21ac3df1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acdbe3ddb4f9d5615de1b4e69e72d2ac4daacf34b0433b555a7629a21ac3df1b", kill_on_drop: false }` [INFO] [stdout] acdbe3ddb4f9d5615de1b4e69e72d2ac4daacf34b0433b555a7629a21ac3df1b [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0e4f82bcb98b08b9ef286433306b8f59b90d6f0d1335f571591d123b17072c4 [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" "d0e4f82bcb98b08b9ef286433306b8f59b90d6f0d1335f571591d123b17072c4", kill_on_drop: false }` [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling ndarray v0.14.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking plotters-backend v0.3.0 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking plotters-svg v0.3.0 [INFO] [stderr] Compiling semver-parser v0.10.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking thiserror v1.0.25 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling semver v0.11.0 [INFO] [stderr] Compiling rustc_version v0.3.3 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling cast v0.2.6 [INFO] [stderr] Checking approx v0.4.0 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking ordered-float v2.5.1 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking reductive v0.6.0 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking finalfusion v0.15.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stdout] error[E0277]: a value of type `String` cannot be built from an iterator over elements of type `u8` [INFO] [stdout] --> benches/subword.rs:25:10 [INFO] [stdout] | [INFO] [stdout] 25 | .collect::(); [INFO] [stdout] | ^^^^^^^ value of type `String` cannot be built from `std::iter::Iterator` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator` is not implemented for `String` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `finalfusion` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "d0e4f82bcb98b08b9ef286433306b8f59b90d6f0d1335f571591d123b17072c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0e4f82bcb98b08b9ef286433306b8f59b90d6f0d1335f571591d123b17072c4", kill_on_drop: false }` [INFO] [stdout] d0e4f82bcb98b08b9ef286433306b8f59b90d6f0d1335f571591d123b17072c4