[INFO] cloning repository https://github.com/frappuccino2316/rust-algorithm-practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frappuccino2316/rust-algorithm-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrappuccino2316%2Frust-algorithm-practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrappuccino2316%2Frust-algorithm-practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9db867c989dbd8453a5ae8fd3efa3cce3ea5e07d [INFO] checking frappuccino2316/rust-algorithm-practice against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrappuccino2316%2Frust-algorithm-practice" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/frappuccino2316/rust-algorithm-practice 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/frappuccino2316/rust-algorithm-practice [INFO] finished tweaking git repo https://github.com/frappuccino2316/rust-algorithm-practice [INFO] tweaked toml for git repo https://github.com/frappuccino2316/rust-algorithm-practice written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/frappuccino2316/rust-algorithm-practice 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 proconio v0.4.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e36e1fb735684cd822e6f4106b91107798fc1f17d955c432e410241853c67fc1 [INFO] running `Command { std: "docker" "start" "-a" "e36e1fb735684cd822e6f4106b91107798fc1f17d955c432e410241853c67fc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e36e1fb735684cd822e6f4106b91107798fc1f17d955c432e410241853c67fc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e36e1fb735684cd822e6f4106b91107798fc1f17d955c432e410241853c67fc1", kill_on_drop: false }` [INFO] [stdout] e36e1fb735684cd822e6f4106b91107798fc1f17d955c432e410241853c67fc1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d52715291edf0b9cfb0894784ce59da616d98776654ad9e28a14c267b159ff66 [INFO] running `Command { std: "docker" "start" "-a" "d52715291edf0b9cfb0894784ce59da616d98776654ad9e28a14c267b159ff66", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.124 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking proconio v0.4.3 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking pr v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.59s [INFO] running `Command { std: "docker" "inspect" "d52715291edf0b9cfb0894784ce59da616d98776654ad9e28a14c267b159ff66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d52715291edf0b9cfb0894784ce59da616d98776654ad9e28a14c267b159ff66", kill_on_drop: false }` [INFO] [stdout] d52715291edf0b9cfb0894784ce59da616d98776654ad9e28a14c267b159ff66 [INFO] checking frappuccino2316/rust-algorithm-practice against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrappuccino2316%2Frust-algorithm-practice" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/frappuccino2316/rust-algorithm-practice 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/frappuccino2316/rust-algorithm-practice [INFO] finished tweaking git repo https://github.com/frappuccino2316/rust-algorithm-practice [INFO] tweaked toml for git repo https://github.com/frappuccino2316/rust-algorithm-practice written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/frappuccino2316/rust-algorithm-practice 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5e8931de241f1e8f54aa26cecb367d8dc9b3218595d7fda709a4ccaffb947c48 [INFO] running `Command { std: "docker" "start" "-a" "5e8931de241f1e8f54aa26cecb367d8dc9b3218595d7fda709a4ccaffb947c48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5e8931de241f1e8f54aa26cecb367d8dc9b3218595d7fda709a4ccaffb947c48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e8931de241f1e8f54aa26cecb367d8dc9b3218595d7fda709a4ccaffb947c48", kill_on_drop: false }` [INFO] [stdout] 5e8931de241f1e8f54aa26cecb367d8dc9b3218595d7fda709a4ccaffb947c48 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bc22ab24d3c1557c375f11fdfe25ed00a2e8c827fcb487407c5abb9a56a4f04c [INFO] running `Command { std: "docker" "start" "-a" "bc22ab24d3c1557c375f11fdfe25ed00a2e8c827fcb487407c5abb9a56a4f04c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.124 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking proconio v0.4.3 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.19/src/format/parse.rs:491:21 [INFO] [stdout] | [INFO] [stdout] 491 | Err(INVALID)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 491 | Err::(INVALID)?; [INFO] [stdout] | +++++++++++++++++++++++++ [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 `chrono` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "bc22ab24d3c1557c375f11fdfe25ed00a2e8c827fcb487407c5abb9a56a4f04c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc22ab24d3c1557c375f11fdfe25ed00a2e8c827fcb487407c5abb9a56a4f04c", kill_on_drop: false }` [INFO] [stdout] bc22ab24d3c1557c375f11fdfe25ed00a2e8c827fcb487407c5abb9a56a4f04c