[INFO] cloning repository https://github.com/ruduran/game-of-life [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruduran/game-of-life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruduran%2Fgame-of-life", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruduran%2Fgame-of-life'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0c7360e0a6cbcea8572bfc5835c30908a367c14b [INFO] checking ruduran/game-of-life against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruduran%2Fgame-of-life" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ruduran/game-of-life 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/ruduran/game-of-life [INFO] finished tweaking git repo https://github.com/ruduran/game-of-life [INFO] tweaked toml for git repo https://github.com/ruduran/game-of-life written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ruduran/game-of-life 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 quote v0.6.2 [INFO] [stderr] Downloaded ncurses v5.91.0 [INFO] [stderr] Downloaded argparse v0.2.1 [INFO] [stderr] Downloaded syn v0.14.0 [INFO] [stderr] Downloaded proc-macro2 v0.4.3 [INFO] [stderr] Downloaded serde_derive v1.0.59 [INFO] [stderr] Downloaded serde v1.0.59 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cb761f63cfe469a4744cfb17febfce25a0c9f4d8e248593f3f78a988588c8ffa [INFO] running `Command { std: "docker" "start" "-a" "cb761f63cfe469a4744cfb17febfce25a0c9f4d8e248593f3f78a988588c8ffa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cb761f63cfe469a4744cfb17febfce25a0c9f4d8e248593f3f78a988588c8ffa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb761f63cfe469a4744cfb17febfce25a0c9f4d8e248593f3f78a988588c8ffa", kill_on_drop: false }` [INFO] [stdout] cb761f63cfe469a4744cfb17febfce25a0c9f4d8e248593f3f78a988588c8ffa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b23bc626ebd41030ef713a089b6e3e8e927df5734faceadea03b7f591bdbe675 [INFO] running `Command { std: "docker" "start" "-a" "b23bc626ebd41030ef713a089b6e3e8e927df5734faceadea03b7f591bdbe675", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Compiling pkg-config v0.3.11 [INFO] [stderr] Compiling serde v1.0.59 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking argparse v0.2.1 [INFO] [stderr] Compiling proc-macro2 v0.4.3 [INFO] [stderr] Compiling quote v0.6.2 [INFO] [stderr] Compiling syn v0.14.0 [INFO] [stderr] Compiling ncurses v5.91.0 [INFO] [stderr] Compiling serde_derive v1.0.59 [INFO] [stderr] Checking serde_json v1.0.17 [INFO] [stderr] Checking game_of_life v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/grid.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | extern crate serde_json; [INFO] [stdout] | ------------------------ the item `serde_json` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/grid.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | extern crate serde_json; [INFO] [stdout] | ------------------------ the item `serde_json` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/grid.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | serde_json::to_writer_pretty(file, &g); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 100 | let _ = serde_json::to_writer_pretty(file, &g); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/grid.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | serde_json::to_writer_pretty(file, &g); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 100 | let _ = serde_json::to_writer_pretty(file, &g); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.75s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "b23bc626ebd41030ef713a089b6e3e8e927df5734faceadea03b7f591bdbe675", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b23bc626ebd41030ef713a089b6e3e8e927df5734faceadea03b7f591bdbe675", kill_on_drop: false }` [INFO] [stdout] b23bc626ebd41030ef713a089b6e3e8e927df5734faceadea03b7f591bdbe675 [INFO] checking ruduran/game-of-life against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruduran%2Fgame-of-life" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ruduran/game-of-life 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/ruduran/game-of-life [INFO] finished tweaking git repo https://github.com/ruduran/game-of-life [INFO] tweaked toml for git repo https://github.com/ruduran/game-of-life written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ruduran/game-of-life 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ff89e54e71c20ce014b3225c5e5fac723309a8f46fa0402a5746e50ffb4ab140 [INFO] running `Command { std: "docker" "start" "-a" "ff89e54e71c20ce014b3225c5e5fac723309a8f46fa0402a5746e50ffb4ab140", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff89e54e71c20ce014b3225c5e5fac723309a8f46fa0402a5746e50ffb4ab140", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff89e54e71c20ce014b3225c5e5fac723309a8f46fa0402a5746e50ffb4ab140", kill_on_drop: false }` [INFO] [stdout] ff89e54e71c20ce014b3225c5e5fac723309a8f46fa0402a5746e50ffb4ab140 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 909fdbe46024ea2f1f6f0745ad99bedbcdaea86f8120ce08b7e6ab92d7bb4c6c [INFO] running `Command { std: "docker" "start" "-a" "909fdbe46024ea2f1f6f0745ad99bedbcdaea86f8120ce08b7e6ab92d7bb4c6c", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling serde v1.0.59 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Compiling pkg-config v0.3.11 [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking argparse v0.2.1 [INFO] [stderr] Compiling proc-macro2 v0.4.3 [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/argparse-0.2.1/src/parser.rs:204:18 [INFO] [stdout] | [INFO] [stdout] 204 | _ => panic!(), [INFO] [stdout] | ^^^^^^^^ cannot satisfy `_ -> _` [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[E0284]: type annotations needed: cannot satisfy `_ -> _` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/argparse-0.2.1/src/parser.rs:338:29 [INFO] [stdout] | [INFO] [stdout] 338 | None => match self.parser.catchall_argument { [INFO] [stdout] | _____________________________^ [INFO] [stdout] 339 | | Some(ref option) => { [INFO] [stdout] 340 | | opt = option; [INFO] [stdout] 341 | | break; [INFO] [stdout] ... | [INFO] [stdout] 344 | | "Unexpected argument {}", arg)), [INFO] [stdout] 345 | | } [INFO] [stdout] | |_____________________^ cannot satisfy `_ -> _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/argparse-0.2.1/src/parser.rs:807:22 [INFO] [stdout] | [INFO] [stdout] 807 | .map_err(|c| exit(c)) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: try giving this closure an explicit return type [INFO] [stdout] | [INFO] [stdout] 807 | .map_err(|c| -> /* Type */ { exit(c) }) [INFO] [stdout] | +++++++++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0282, E0284. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `argparse` (lib) due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "909fdbe46024ea2f1f6f0745ad99bedbcdaea86f8120ce08b7e6ab92d7bb4c6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "909fdbe46024ea2f1f6f0745ad99bedbcdaea86f8120ce08b7e6ab92d7bb4c6c", kill_on_drop: false }` [INFO] [stdout] 909fdbe46024ea2f1f6f0745ad99bedbcdaea86f8120ce08b7e6ab92d7bb4c6c