[INFO] fetching crate nlprule 0.6.4...
[INFO] testing nlprule-0.6.4 against beta-2021-09-12 for beta-1.56-2
[INFO] extracting crate nlprule 0.6.4 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate nlprule 0.6.4 on toolchain beta-2021-09-12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nlprule 0.6.4
[INFO] finished tweaking crates.io crate nlprule 0.6.4
[INFO] tweaked toml for crates.io crate nlprule 0.6.4 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate crates.io crate nlprule 0.6.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "+beta-2021-09-12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e45fc714b6c62c41796d2a332e2c8855a526bd62f115b01f5061e0714b1a6ae
[INFO] running `Command { std: "docker" "start" "-a" "0e45fc714b6c62c41796d2a332e2c8855a526bd62f115b01f5061e0714b1a6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e45fc714b6c62c41796d2a332e2c8855a526bd62f115b01f5061e0714b1a6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e45fc714b6c62c41796d2a332e2c8855a526bd62f115b01f5061e0714b1a6ae", kill_on_drop: false }`
[INFO] [stdout] 0e45fc714b6c62c41796d2a332e2c8855a526bd62f115b01f5061e0714b1a6ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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=warn" "-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" "+beta-2021-09-12" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 339e7cdcc8aac602f316f4497c7b5c090bb99030605e3ce1e821fe2f14ad251a
[INFO] running `Command { std: "docker" "start" "-a" "339e7cdcc8aac602f316f4497c7b5c090bb99030605e3ce1e821fe2f14ad251a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling fst v0.4.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling fs-err v2.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling onig_sys v69.6.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling onig v6.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling enum_dispatch v0.3.5
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling serde_regex v1.1.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling bimap v0.6.1
[INFO] [stderr]    Compiling srx v0.1.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling nlprule v0.6.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rayon-cond v0.1.0
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rayon-cond-0.1.0/src/lib.rs:522:36
[INFO] [stdout]     |
[INFO] [stdout] 522 |         wrap_either!(self, iter => iter.intersperse(element))
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `itertools::Intersperse`, found struct `std::iter::Intersperse`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `itertools::Intersperse<S>`
[INFO] [stdout]                found struct `std::iter::Intersperse<S>`
[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 E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rayon-cond` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "339e7cdcc8aac602f316f4497c7b5c090bb99030605e3ce1e821fe2f14ad251a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "339e7cdcc8aac602f316f4497c7b5c090bb99030605e3ce1e821fe2f14ad251a", kill_on_drop: false }`
[INFO] [stdout] 339e7cdcc8aac602f316f4497c7b5c090bb99030605e3ce1e821fe2f14ad251a