[INFO] cloning repository https://github.com/rcelebrone/Rust-Blockchain [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rcelebrone/Rust-Blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcelebrone%2FRust-Blockchain", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcelebrone%2FRust-Blockchain'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 15e795a07ff0a4c6c22d843593563e674155bdfc [INFO] checking rcelebrone/Rust-Blockchain against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcelebrone%2FRust-Blockchain" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rcelebrone/Rust-Blockchain on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rcelebrone/Rust-Blockchain [INFO] finished tweaking git repo https://github.com/rcelebrone/Rust-Blockchain [INFO] tweaked toml for git repo https://github.com/rcelebrone/Rust-Blockchain written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rcelebrone/Rust-Blockchain 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded digest v0.10.3 [INFO] [stderr] Downloaded crypto-common v0.1.3 [INFO] [stderr] Downloaded block-buffer v0.10.2 [INFO] [stderr] Downloaded serde v1.0.136 [INFO] [stderr] Downloaded serde_derive v1.0.136 [INFO] [stderr] Downloaded sha2 v0.10.2 [INFO] [stderr] Downloaded time v0.1.44 [INFO] [stderr] Downloaded chrono v0.4.19 [INFO] [stderr] Downloaded syn v1.0.89 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 51dab159fa23750d13021d809c250fce26f046c1c9ff345b837787cdc4c93553 [INFO] running `Command { std: "docker" "start" "-a" "51dab159fa23750d13021d809c250fce26f046c1c9ff345b837787cdc4c93553", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51dab159fa23750d13021d809c250fce26f046c1c9ff345b837787cdc4c93553", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51dab159fa23750d13021d809c250fce26f046c1c9ff345b837787cdc4c93553", kill_on_drop: false }` [INFO] [stdout] 51dab159fa23750d13021d809c250fce26f046c1c9ff345b837787cdc4c93553 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0bc7c42c0bece984f0aa7a4550b05a741e1b705ae3bfa391b04dc65bedb9471c [INFO] running `Command { std: "docker" "start" "-a" "0bc7c42c0bece984f0aa7a4550b05a741e1b705ae3bfa391b04dc65bedb9471c", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling syn v1.0.89 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Checking cpufeatures v0.2.2 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking block-buffer v0.10.2 [INFO] [stderr] Checking crypto-common v0.1.3 [INFO] [stderr] Checking digest v0.10.3 [INFO] [stderr] Checking sha2 v0.10.2 [INFO] [stderr] Checking rust-blockchain v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.61s [INFO] running `Command { std: "docker" "inspect" "0bc7c42c0bece984f0aa7a4550b05a741e1b705ae3bfa391b04dc65bedb9471c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0bc7c42c0bece984f0aa7a4550b05a741e1b705ae3bfa391b04dc65bedb9471c", kill_on_drop: false }` [INFO] [stdout] 0bc7c42c0bece984f0aa7a4550b05a741e1b705ae3bfa391b04dc65bedb9471c