[INFO] cloning repository https://github.com/kernelmachine/numbers
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kernelmachine/numbers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkernelmachine%2Fnumbers"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkernelmachine%2Fnumbers'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8d7d054d353ac63b2bd003252ef10b4b68a95651
[INFO] checking kernelmachine/numbers against try#1a399c10897767c36d147199696c96f193034e49 for pr-72644
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkernelmachine%2Fnumbers" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  56% (6026/10670)   
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Checking out files: 100% (10670/10670), done.
[INFO] validating manifest of git repo https://github.com/kernelmachine/numbers on toolchain 1a399c10897767c36d147199696c96f193034e49
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kernelmachine/numbers
[INFO] finished tweaking git repo https://github.com/kernelmachine/numbers
[INFO] tweaked toml for git repo https://github.com/kernelmachine/numbers written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/kernelmachine/numbers already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blas-sys v0.7.1
[INFO] [stderr]   Downloaded blas v0.20.0
[INFO] [stderr]   Downloaded lapack v0.16.0
[INFO] [stderr]   Downloaded zipWith v0.2.0
[INFO] [stderr]   Downloaded lapack-sys v0.12.1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e25529d2617a01a7fcf1018f088bc9e0baa0579be5ba5d6c681443f63f361ac1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e25529d2617a01a7fcf1018f088bc9e0baa0579be5ba5d6c681443f63f361ac1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking zipWith v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking lapack-sys v0.12.1
[INFO] [stderr]     Checking blas-sys v0.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking lapack v0.16.0
[INFO] [stderr]     Checking blas v0.20.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking numbers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(custom_derive)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `clippy`
[INFO] [stderr]  --> src/lib.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![plugin(clippy)]
[INFO] [stderr]   |           ^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(custom_derive)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `clippy`
[INFO] [stderr]  --> src/lib.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![plugin(clippy)]
[INFO] [stderr]   |           ^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `numbers`.
[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: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e25529d2617a01a7fcf1018f088bc9e0baa0579be5ba5d6c681443f63f361ac1"`
[INFO] running `"docker" "rm" "-f" "e25529d2617a01a7fcf1018f088bc9e0baa0579be5ba5d6c681443f63f361ac1"`
[INFO] [stdout] e25529d2617a01a7fcf1018f088bc9e0baa0579be5ba5d6c681443f63f361ac1