[INFO] cloning repository https://github.com/onnenon/whiteboard_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/onnenon/whiteboard_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonnenon%2Fwhiteboard_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonnenon%2Fwhiteboard_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53be837fee82b754f405bfe1a090a57303a490e4
[INFO] checking onnenon/whiteboard_rs against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonnenon%2Fwhiteboard_rs" "/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/onnenon/whiteboard_rs on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/onnenon/whiteboard_rs
[INFO] finished tweaking git repo https://github.com/onnenon/whiteboard_rs
[INFO] tweaked toml for git repo https://github.com/onnenon/whiteboard_rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/onnenon/whiteboard_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64-url v1.4.7
[INFO] [stderr]   Downloaded subtle-encoding v0.5.1
[INFO] [stderr]   Downloaded async-rustls v0.1.1
[INFO] [stderr]   Downloaded signatory v0.21.0
[INFO] [stderr]   Downloaded nkeys v0.0.11
[INFO] [stderr]   Downloaded nats v0.8.3
[INFO] [stderr]   Downloaded nuid v0.2.2
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4faf2b6512043e722e4cde69fa4dc7ebd37ff50102ba41a99d51c1c58368e8e6
[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" "4faf2b6512043e722e4cde69fa4dc7ebd37ff50102ba41a99d51c1c58368e8e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4faf2b6512043e722e4cde69fa4dc7ebd37ff50102ba41a99d51c1c58368e8e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4faf2b6512043e722e4cde69fa4dc7ebd37ff50102ba41a99d51c1c58368e8e6", kill_on_drop: false }`
[INFO] [stdout] 4faf2b6512043e722e4cde69fa4dc7ebd37ff50102ba41a99d51c1c58368e8e6
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da313a345c0316210d2e1578065a9d08ae15ffae3de31a9610bc1235709c09df
[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" "da313a345c0316210d2e1578065a9d08ae15ffae3de31a9610bc1235709c09df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking once_cell v1.5.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking data-encoding v2.3.1
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking base64-url v1.4.7
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]    Compiling tokio v0.3.3
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking sha2 v0.9.2
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking mio v0.7.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-net v1.5.0
[INFO] [stderr]     Checking nuid v0.2.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking async-rustls v0.1.1
[INFO] [stderr]     Checking rustls-native-certs v0.4.0
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking signatory v0.21.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking nkeys v0.0.11
[INFO] [stderr]     Checking nats v0.8.3
[INFO] [stderr]     Checking whiteboard_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "da313a345c0316210d2e1578065a9d08ae15ffae3de31a9610bc1235709c09df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da313a345c0316210d2e1578065a9d08ae15ffae3de31a9610bc1235709c09df", kill_on_drop: false }`
[INFO] [stdout] da313a345c0316210d2e1578065a9d08ae15ffae3de31a9610bc1235709c09df