[INFO] cloning repository https://github.com/renand3z/cpu-blockchain [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/renand3z/cpu-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenand3z%2Fcpu-blockchain", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenand3z%2Fcpu-blockchain'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c413a1e3e638786b103202222ebfdcad2d0650a4 [INFO] checking renand3z/cpu-blockchain against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenand3z%2Fcpu-blockchain" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/renand3z/cpu-blockchain on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/renand3z/cpu-blockchain [INFO] finished tweaking git repo https://github.com/renand3z/cpu-blockchain [INFO] tweaked toml for git repo https://github.com/renand3z/cpu-blockchain written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/renand3z/cpu-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded time v0.1.45 [INFO] [stderr] Downloaded rustc-serialize v0.3.25 [INFO] [stderr] Downloaded rust-crypto v0.2.36 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6f6ed9badfeab25b1a5688d3d3c8bf45da7437269484f8b05237d5bbd53561e6 [INFO] running `Command { std: "docker" "start" "-a" "6f6ed9badfeab25b1a5688d3d3c8bf45da7437269484f8b05237d5bbd53561e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6f6ed9badfeab25b1a5688d3d3c8bf45da7437269484f8b05237d5bbd53561e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f6ed9badfeab25b1a5688d3d3c8bf45da7437269484f8b05237d5bbd53561e6", kill_on_drop: false }` [INFO] [stdout] 6f6ed9badfeab25b1a5688d3d3c8bf45da7437269484f8b05237d5bbd53561e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f3d6d3ca1aeca054f5244f25ab34e0b0e8bfb5c7c8e02f871e875e0e172caa25 [INFO] running `Command { std: "docker" "start" "-a" "f3d6d3ca1aeca054f5244f25ab34e0b0e8bfb5c7c8e02f871e875e0e172caa25", kill_on_drop: false }` [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking cpu-blockchain v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `index`, `data`, `previous_hash`, and `normalized_cycles` are never read [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Block { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | index: u64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 10 | data: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | previous_hash: String, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 12 | hash: String, [INFO] [stdout] 13 | normalized_cycles: u128, // Using normalized CPU cycles as the "timestamp" [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `index`, `data`, `previous_hash`, and `normalized_cycles` are never read [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Block { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | index: u64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 10 | data: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | previous_hash: String, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 12 | hash: String, [INFO] [stdout] 13 | normalized_cycles: u128, // Using normalized CPU cycles as the "timestamp" [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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` profile [unoptimized + debuginfo] target(s) in 2.32s [INFO] running `Command { std: "docker" "inspect" "f3d6d3ca1aeca054f5244f25ab34e0b0e8bfb5c7c8e02f871e875e0e172caa25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3d6d3ca1aeca054f5244f25ab34e0b0e8bfb5c7c8e02f871e875e0e172caa25", kill_on_drop: false }` [INFO] [stdout] f3d6d3ca1aeca054f5244f25ab34e0b0e8bfb5c7c8e02f871e875e0e172caa25 [INFO] checking renand3z/cpu-blockchain against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenand3z%2Fcpu-blockchain" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/renand3z/cpu-blockchain on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/renand3z/cpu-blockchain [INFO] finished tweaking git repo https://github.com/renand3z/cpu-blockchain [INFO] tweaked toml for git repo https://github.com/renand3z/cpu-blockchain written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/renand3z/cpu-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1568c316976e51324fd1251f0c2c28f56735ef957fc55fb386c54d54331c6fc4 [INFO] running `Command { std: "docker" "start" "-a" "1568c316976e51324fd1251f0c2c28f56735ef957fc55fb386c54d54331c6fc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1568c316976e51324fd1251f0c2c28f56735ef957fc55fb386c54d54331c6fc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1568c316976e51324fd1251f0c2c28f56735ef957fc55fb386c54d54331c6fc4", kill_on_drop: false }` [INFO] [stdout] 1568c316976e51324fd1251f0c2c28f56735ef957fc55fb386c54d54331c6fc4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a9613d9f7a1c2c19919c0e40627952a82f01dc007c9eb21fa68c954a2a958ce9 [INFO] running `Command { std: "docker" "start" "-a" "a9613d9f7a1c2c19919c0e40627952a82f01dc007c9eb21fa68c954a2a958ce9", kill_on_drop: false }` [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Checking num-traits v0.2.18 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking chrono v0.4.35 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.25/src/json.rs:1387:20 [INFO] [stdout] | [INFO] [stdout] 1387 | _ => { panic!(); } [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "a9613d9f7a1c2c19919c0e40627952a82f01dc007c9eb21fa68c954a2a958ce9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9613d9f7a1c2c19919c0e40627952a82f01dc007c9eb21fa68c954a2a958ce9", kill_on_drop: false }` [INFO] [stdout] a9613d9f7a1c2c19919c0e40627952a82f01dc007c9eb21fa68c954a2a958ce9