[INFO] cloning repository https://github.com/bcmyers/aoc2019 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bcmyers/aoc2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbcmyers%2Faoc2019", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbcmyers%2Faoc2019'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 57c704852d6ed55a8bc7a84327cdf68e291a5b9a [INFO] checking bcmyers/aoc2019 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbcmyers%2Faoc2019" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/bcmyers/aoc2019 [INFO] finished tweaking git repo https://github.com/bcmyers/aoc2019 [INFO] tweaked toml for git repo https://github.com/bcmyers/aoc2019 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/bcmyers/aoc2019 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/bcmyers/aoc2019 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0c61939d26f9e91eb0b8e794f66071e0275f1dfe39c3f122ce23e97c52eb010e [INFO] running `Command { std: "docker" "start" "-a" "0c61939d26f9e91eb0b8e794f66071e0275f1dfe39c3f122ce23e97c52eb010e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c61939d26f9e91eb0b8e794f66071e0275f1dfe39c3f122ce23e97c52eb010e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c61939d26f9e91eb0b8e794f66071e0275f1dfe39c3f122ce23e97c52eb010e", kill_on_drop: false }` [INFO] [stdout] 0c61939d26f9e91eb0b8e794f66071e0275f1dfe39c3f122ce23e97c52eb010e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 32dea8f5ae5083ff18e24740252c865d941af05044b91b2ec513b969a96fc0c8 [INFO] running `Command { std: "docker" "start" "-a" "32dea8f5ae5083ff18e24740252c865d941af05044b91b2ec513b969a96fc0c8", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.32 [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling serde v1.0.113 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling rayon-core v1.7.1 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling serde_json v1.0.55 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling rayon v1.3.1 [INFO] [stderr] Compiling serde_derive v1.0.113 [INFO] [stderr] Checking atoi v0.3.2 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking bytecount v0.6.0 [INFO] [stderr] Checking criterion-plot v0.4.2 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling structopt-derive v0.4.8 [INFO] [stderr] Checking structopt v0.3.15 [INFO] [stderr] Checking aoc2019 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the type `[RefCell; 4]` does not permit being left uninitialized [INFO] [stdout] --> src/day12.rs:72:50 [INFO] [stdout] | [INFO] [stdout] 72 | let mut moons: [RefCell; 4] = unsafe { mem::MaybeUninit::uninit().assume_init() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[[(i64, i64); 4]; 3]` does not permit being left uninitialized [INFO] [stdout] --> src/day12.rs:129:52 [INFO] [stdout] | [INFO] [stdout] 129 | let mut a: [[(i64, i64); 4]; 3] = unsafe { mem::MaybeUninit::uninit().assume_init() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | / /// Optional path to input file; if not supplied will read from stdin [INFO] [stdout] 16 | | input: Option, [INFO] [stdout] | |__________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `aoc2019` (bin "aoc2019") due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "32dea8f5ae5083ff18e24740252c865d941af05044b91b2ec513b969a96fc0c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "32dea8f5ae5083ff18e24740252c865d941af05044b91b2ec513b969a96fc0c8", kill_on_drop: false }` [INFO] [stdout] 32dea8f5ae5083ff18e24740252c865d941af05044b91b2ec513b969a96fc0c8