[INFO] cloning repository https://github.com/matin-karimpour/ML_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matin-karimpour/ML_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatin-karimpour%2FML_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatin-karimpour%2FML_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22b0b8867af77e0f77952c974de680b0623fbea9
[INFO] checking matin-karimpour/ML_Rust against try#9228062c11d321a3ea08123f57e47533a3c88b00 for pr-154781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatin-karimpour%2FML_Rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matin-karimpour/ML_Rust
[INFO] finished tweaking git repo https://github.com/matin-karimpour/ML_Rust
[INFO] tweaked toml for git repo https://github.com/matin-karimpour/ML_Rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matin-karimpour/ML_Rust on toolchain 9228062c11d321a3ea08123f57e47533a3c88b00
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9228062c11d321a3ea08123f57e47533a3c88b00" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matin-karimpour/ML_Rust 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" "+9228062c11d321a3ea08123f57e47533a3c88b00" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded noisy_float v0.2.0
[INFO] [stderr]   Downloaded take_mut v0.2.2
[INFO] [stderr]   Downloaded order-stat v0.1.3
[INFO] [stderr]   Downloaded linfa-nn v0.6.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.37
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded ndarray-csv v0.5.1
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded slog-async v2.7.0
[INFO] [stderr]   Downloaded once_cell v1.16.0
[INFO] [stderr]   Downloaded linfa-svm v0.6.0
[INFO] [stderr]   Downloaded slog v2.7.0
[INFO] [stderr]   Downloaded anyhow v1.0.48
[INFO] [stderr]   Downloaded num-bigint v0.4.3
[INFO] [stderr]   Downloaded argmin v0.4.7
[INFO] [stderr]   Downloaded serde_json v1.0.89
[INFO] [stderr]   Downloaded sprs v0.11.0
[INFO] [stderr]   Downloaded linfa v0.6.0
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded time v0.3.17
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded ndarray-stats v0.5.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded smallvec v1.10.0
[INFO] [stderr]   Downloaded linfa-trees v0.6.0
[INFO] [stderr]   Downloaded slog-json v2.6.1
[INFO] [stderr]   Downloaded time-core v0.1.0
[INFO] [stderr]   Downloaded linfa-kernel v0.6.0
[INFO] [stderr]   Downloaded time-macros v0.2.6
[INFO] [stderr]   Downloaded slog-term v2.9.0
[INFO] [stderr]   Downloaded linfa-logistic v0.6.0
[INFO] [stderr]   Downloaded thiserror v1.0.37
[INFO] [stderr]   Downloaded kdtree v0.6.0
[INFO] [stderr]   Downloaded linfa-datasets v0.6.0
[INFO] [stderr]   Downloaded approx v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9228062c11d321a3ea08123f57e47533a3c88b00" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 877951937be8683af3aefeaa89576e53541952b957fd9c6313e3d60eca0b0e45
[INFO] running `Command { std: "docker" "start" "-a" "877951937be8683af3aefeaa89576e53541952b957fd9c6313e3d60eca0b0e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "877951937be8683af3aefeaa89576e53541952b957fd9c6313e3d60eca0b0e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877951937be8683af3aefeaa89576e53541952b957fd9c6313e3d60eca0b0e45", kill_on_drop: false }`
[INFO] [stdout] 877951937be8683af3aefeaa89576e53541952b957fd9c6313e3d60eca0b0e45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9228062c11d321a3ea08123f57e47533a3c88b00" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dc7ba36d7e9b198d91faf9ded1576631e2b16402b543c819177c78f87034ed7
[INFO] running `Command { std: "docker" "start" "-a" "6dc7ba36d7e9b198d91faf9ded1576631e2b16402b543c819177c78f87034ed7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling anyhow v1.0.48
[INFO] [stderr]    Compiling linfa v0.6.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6dc7ba36d7e9b198d91faf9ded1576631e2b16402b543c819177c78f87034ed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc7ba36d7e9b198d91faf9ded1576631e2b16402b543c819177c78f87034ed7", kill_on_drop: false }`
[INFO] [stdout] 6dc7ba36d7e9b198d91faf9ded1576631e2b16402b543c819177c78f87034ed7