[INFO] fetching crate fountaincode 0.0.8...
[INFO] checking fountaincode-0.0.8 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate fountaincode 0.0.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fountaincode 0.0.8 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fountaincode 0.0.8
[INFO] finished tweaking crates.io crate fountaincode 0.0.8
[INFO] tweaked toml for crates.io crate fountaincode 0.0.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--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-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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78b4c972ebdd3a2f8ea228bc75e2fb8373de8953158e01aaddaa758e02625828
[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" "78b4c972ebdd3a2f8ea228bc75e2fb8373de8953158e01aaddaa758e02625828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78b4c972ebdd3a2f8ea228bc75e2fb8373de8953158e01aaddaa758e02625828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78b4c972ebdd3a2f8ea228bc75e2fb8373de8953158e01aaddaa758e02625828", kill_on_drop: false }`
[INFO] [stdout] 78b4c972ebdd3a2f8ea228bc75e2fb8373de8953158e01aaddaa758e02625828
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fea978f5c0f2f145395fb6b9e94b85891c98d7921a69b8237bcaa410500a2a7
[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" "3fea978f5c0f2f145395fb6b9e94b85891c98d7921a69b8237bcaa410500a2a7", kill_on_drop: false }`
[INFO] [stderr]     Checking fountaincode v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]  --> src/ltcode.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{Rng, sample, StdRng, SeedableRng};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]    --> src/ltcode.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     sample(&mut rng, 0..n, degree)
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]  --> src/ltcode.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{Rng, sample, StdRng, SeedableRng};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]    --> src/ltcode.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     sample(&mut rng, 0..n, degree)
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "3fea978f5c0f2f145395fb6b9e94b85891c98d7921a69b8237bcaa410500a2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fea978f5c0f2f145395fb6b9e94b85891c98d7921a69b8237bcaa410500a2a7", kill_on_drop: false }`
[INFO] [stdout] 3fea978f5c0f2f145395fb6b9e94b85891c98d7921a69b8237bcaa410500a2a7