[INFO] cloning repository https://github.com/rphmeier/shamir_sharing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rphmeier/shamir_sharing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphmeier%2Fshamir_sharing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphmeier%2Fshamir_sharing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5714c399123ef015c225df1a978b36326addc937
[INFO] checking rphmeier/shamir_sharing against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frphmeier%2Fshamir_sharing" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rphmeier/shamir_sharing on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rphmeier/shamir_sharing
[INFO] finished tweaking git repo https://github.com/rphmeier/shamir_sharing
[INFO] tweaked toml for git repo https://github.com/rphmeier/shamir_sharing written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rphmeier/shamir_sharing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2925383512af4fd06645a17bc971a34d32bcb19ee08941a1f96e8ab12b5bb134
[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" "2925383512af4fd06645a17bc971a34d32bcb19ee08941a1f96e8ab12b5bb134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2925383512af4fd06645a17bc971a34d32bcb19ee08941a1f96e8ab12b5bb134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2925383512af4fd06645a17bc971a34d32bcb19ee08941a1f96e8ab12b5bb134", kill_on_drop: false }`
[INFO] [stdout] 2925383512af4fd06645a17bc971a34d32bcb19ee08941a1f96e8ab12b5bb134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6850c44a6f097a589c7c6d24c2c85fe5d547af1fa4d2813fafd5b57e664ffb93
[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" "6850c44a6f097a589c7c6d24c2c85fe5d547af1fa4d2813fafd5b57e664ffb93", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.21
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking num-complex v0.1.40
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking serde_json v1.0.6
[INFO] [stderr]     Checking shamir-sharing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/field.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / /// This module exports two items: a large prime number `PRIME` and the `Value` type, which are members of
[INFO] [stdout] 8 | | /// the finite field Z / PRIME*Z
[INFO] [stdout]   | |_-------------------------------^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/field.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / /// This module exports two items: a large prime number `PRIME` and the `Value` type, which are members of
[INFO] [stdout] 8 | | /// the finite field Z / PRIME*Z
[INFO] [stdout]   | |_-------------------------------^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.75s
[INFO] running `Command { std: "docker" "inspect" "6850c44a6f097a589c7c6d24c2c85fe5d547af1fa4d2813fafd5b57e664ffb93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6850c44a6f097a589c7c6d24c2c85fe5d547af1fa4d2813fafd5b57e664ffb93", kill_on_drop: false }`
[INFO] [stdout] 6850c44a6f097a589c7c6d24c2c85fe5d547af1fa4d2813fafd5b57e664ffb93