[INFO] fetching crate mo 0.1.0... [INFO] checking mo-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate mo 0.1.0 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate mo 0.1.0 [INFO] finished tweaking crates.io crate mo 0.1.0 [INFO] tweaked toml for crates.io crate mo 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mo 0.1.0 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 crates.io crate mo 0.1.0 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] 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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 78e3fda720901e802e73ae7cbd24a55d5453de68b967c3ffe0e5492c932ab260 [INFO] running `Command { std: "docker" "start" "-a" "78e3fda720901e802e73ae7cbd24a55d5453de68b967c3ffe0e5492c932ab260", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "78e3fda720901e802e73ae7cbd24a55d5453de68b967c3ffe0e5492c932ab260", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78e3fda720901e802e73ae7cbd24a55d5453de68b967c3ffe0e5492c932ab260", kill_on_drop: false }` [INFO] [stdout] 78e3fda720901e802e73ae7cbd24a55d5453de68b967c3ffe0e5492c932ab260 [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 -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] fb795ab56c0d72dfdab2e46a34127021d26d633023bf72da2cc38b9a952c325c [INFO] running `Command { std: "docker" "start" "-a" "fb795ab56c0d72dfdab2e46a34127021d26d633023bf72da2cc38b9a952c325c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.89 [INFO] [stderr] Compiling serde v1.0.124 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling lexical-core v0.7.5 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling psm v0.1.12 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking ucd-trie v0.1.3 [INFO] [stderr] Compiling serde_derive v1.0.124 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Checking pest v2.1.3 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Compiling stacker v0.1.13 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking number_prefix v0.2.8 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking plotters-backend v0.3.0 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking terminal_size v0.1.16 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking plotters-svg v0.3.0 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking plotters v0.3.0 [INFO] [stderr] Checking serde_test v0.8.23 [INFO] [stderr] Checking pest_meta v2.1.3 [INFO] [stderr] Checking linked-hash-map v0.3.0 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking pest_vm v2.1.0 [INFO] [stderr] Checking nom v5.1.2 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking serde-hjson v0.9.1 [INFO] [stderr] Checking console v0.14.1 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking indicatif v0.11.0 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking config v0.10.1 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking mo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stdout] warning: fields `total_count`, `weights`, and `choices_count` are never read [INFO] [stdout] --> src/generator/mod.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 39 | struct Context { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 40 | total_count: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | weights: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | choices_count: HashMap, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Context` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 32 | / /// Rule to start generation of examples [INFO] [stdout] 33 | | #[structopt(short, long)] [INFO] [stdout] 34 | | pub start_rule: String, [INFO] [stdout] | |__________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 36 | / /// Where to write the examples: one of debug, stdout, folder [INFO] [stdout] 37 | | /// [INFO] [stdout] 38 | | /// debug: Print results in stdout (vec form) for debugging purposes [INFO] [stdout] 39 | | /// stdout: Print results in stdout [INFO] [stdout] ... | [INFO] [stdout] 42 | | #[structopt(short, long, verbatim_doc_comment)] [INFO] [stdout] 43 | | pub out_type: String, [INFO] [stdout] | |________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:59:5 [INFO] [stdout] | [INFO] [stdout] 59 | / /// Name of the files, e.g. html-test-{}.html, {} will be used for enumerating the example [INFO] [stdout] 60 | | #[structopt(short, long, default_value = "example-{}.txt")] [INFO] [stdout] 61 | | pub template_name: String, [INFO] [stdout] | |_____________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mo` (bin "mo") due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "fb795ab56c0d72dfdab2e46a34127021d26d633023bf72da2cc38b9a952c325c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb795ab56c0d72dfdab2e46a34127021d26d633023bf72da2cc38b9a952c325c", kill_on_drop: false }` [INFO] [stdout] fb795ab56c0d72dfdab2e46a34127021d26d633023bf72da2cc38b9a952c325c