[INFO] cloning repository https://github.com/mube1/sumcheck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mube1/sumcheck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmube1%2Fsumcheck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmube1%2Fsumcheck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5f556bc7819c7dcc32ec1c9c8ddf80ccc13bbee
[INFO] checking mube1/sumcheck against try#c8085cfed34c45021fc8f66d073f6394b3e35431 for pr-148939
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmube1%2Fsumcheck" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mube1/sumcheck
[INFO] finished tweaking git repo https://github.com/mube1/sumcheck
[INFO] tweaked toml for git repo https://github.com/mube1/sumcheck written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mube1/sumcheck on toolchain c8085cfed34c45021fc8f66d073f6394b3e35431
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mube1/sumcheck 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" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 124ddeb56e15c2c09ad4792a4eff925e722f2277cf683110f2dc76d0539982e3
[INFO] running `Command { std: "docker" "start" "-a" "124ddeb56e15c2c09ad4792a4eff925e722f2277cf683110f2dc76d0539982e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "124ddeb56e15c2c09ad4792a4eff925e722f2277cf683110f2dc76d0539982e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124ddeb56e15c2c09ad4792a4eff925e722f2277cf683110f2dc76d0539982e3", kill_on_drop: false }`
[INFO] [stdout] 124ddeb56e15c2c09ad4792a4eff925e722f2277cf683110f2dc76d0539982e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c69564f5f0a5746cfbc08ded2c71dc66f88e27bd56dab0732d964de72c6e164
[INFO] running `Command { std: "docker" "start" "-a" "4c69564f5f0a5746cfbc08ded2c71dc66f88e27bd56dab0732d964de72c6e164", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]     Checking sumcheck_protocol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `rand`
[INFO] [stdout]   --> src/sumcheck.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                       ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `rand`
[INFO] [stdout]   --> src/sumcheck.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                       ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sumcheck_protocol` (bin "sumcheck_protocol" test) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `sumcheck_protocol` (bin "sumcheck_protocol") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4c69564f5f0a5746cfbc08ded2c71dc66f88e27bd56dab0732d964de72c6e164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c69564f5f0a5746cfbc08ded2c71dc66f88e27bd56dab0732d964de72c6e164", kill_on_drop: false }`
[INFO] [stdout] 4c69564f5f0a5746cfbc08ded2c71dc66f88e27bd56dab0732d964de72c6e164