[INFO] fetching crate dicetest 0.3.1... [INFO] checking dicetest-0.3.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate dicetest 0.3.1 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate dicetest 0.3.1 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 crates.io crate dicetest 0.3.1 [INFO] finished tweaking crates.io crate dicetest 0.3.1 [INFO] tweaked toml for crates.io crate dicetest 0.3.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 21 packages [INFO] [stderr] Adding env_logger v0.7.1 (latest: v0.11.3) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding quickcheck v0.9.2 (latest: v1.0.3) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [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] Downloading crates ... [INFO] [stderr] Downloaded array-init v2.1.0 [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] c1841712006940e8d76ba694f696d33cb9215e7d2025d0866fb0dd2d6c5fe8d3 [INFO] running `Command { std: "docker" "start" "-a" "c1841712006940e8d76ba694f696d33cb9215e7d2025d0866fb0dd2d6c5fe8d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c1841712006940e8d76ba694f696d33cb9215e7d2025d0866fb0dd2d6c5fe8d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1841712006940e8d76ba694f696d33cb9215e7d2025d0866fb0dd2d6c5fe8d3", kill_on_drop: false }` [INFO] [stdout] c1841712006940e8d76ba694f696d33cb9215e7d2025d0866fb0dd2d6c5fe8d3 [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] 3703edd0d030369922ce43ac49b8f1d99495fa79398aa442cb2bfc211d17b204 [INFO] running `Command { std: "docker" "start" "-a" "3703edd0d030369922ce43ac49b8f1d99495fa79398aa442cb2bfc211d17b204", kill_on_drop: false }` [INFO] [stderr] Checking array-init v2.1.0 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking dicetest v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `RunCode` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:355:9 [INFO] [stdout] | [INFO] [stdout] 355 | use crate::frontend::RunCode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `RunCode` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Hints` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:356:30 [INFO] [stdout] | [INFO] [stdout] 356 | use crate::hints::{Hint, Hints}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Hints` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `runner` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:357:25 [INFO] [stdout] | [INFO] [stdout] 357 | use crate::runner::{self, repeatedly::Counterexample, Error}; [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `runner` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Counterexample` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:357:31 [INFO] [stdout] | [INFO] [stdout] 357 | use crate::runner::{self, repeatedly::Counterexample, Error}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Counterexample` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Error` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:357:59 [INFO] [stdout] | [INFO] [stdout] 357 | use crate::runner::{self, repeatedly::Counterexample, Error}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Error` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Stats` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:358:39 [INFO] [stdout] | [INFO] [stdout] 358 | use crate::stats::{Counter, Stat, Stats}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Stats` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Limit` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:359:17 [INFO] [stdout] | [INFO] [stdout] 359 | use crate::{Limit, Prng}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] 360 | [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Limit` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `Command { std: "docker" "inspect" "3703edd0d030369922ce43ac49b8f1d99495fa79398aa442cb2bfc211d17b204", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3703edd0d030369922ce43ac49b8f1d99495fa79398aa442cb2bfc211d17b204", kill_on_drop: false }` [INFO] [stdout] 3703edd0d030369922ce43ac49b8f1d99495fa79398aa442cb2bfc211d17b204 [INFO] checking dicetest-0.3.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate dicetest 0.3.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate dicetest 0.3.1 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 crates.io crate dicetest 0.3.1 [INFO] finished tweaking crates.io crate dicetest 0.3.1 [INFO] tweaked toml for crates.io crate dicetest 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [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] 13503ae31151279d70fe11b25796a9591347878e074c350692af3a9b0168e794 [INFO] running `Command { std: "docker" "start" "-a" "13503ae31151279d70fe11b25796a9591347878e074c350692af3a9b0168e794", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "13503ae31151279d70fe11b25796a9591347878e074c350692af3a9b0168e794", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13503ae31151279d70fe11b25796a9591347878e074c350692af3a9b0168e794", kill_on_drop: false }` [INFO] [stdout] 13503ae31151279d70fe11b25796a9591347878e074c350692af3a9b0168e794 [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] e1f64fec32566cddf728805e8e83b960bfc7c574e78b53480d7067818537af8b [INFO] running `Command { std: "docker" "start" "-a" "e1f64fec32566cddf728805e8e83b960bfc7c574e78b53480d7067818537af8b", kill_on_drop: false }` [INFO] [stderr] Checking array-init v2.1.0 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking dicetest v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `RunCode` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:355:9 [INFO] [stdout] | [INFO] [stdout] 355 | use crate::frontend::RunCode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `RunCode` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Hints` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:356:30 [INFO] [stdout] | [INFO] [stdout] 356 | use crate::hints::{Hint, Hints}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Hints` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `runner` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:357:25 [INFO] [stdout] | [INFO] [stdout] 357 | use crate::runner::{self, repeatedly::Counterexample, Error}; [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `runner` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Counterexample` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:357:31 [INFO] [stdout] | [INFO] [stdout] 357 | use crate::runner::{self, repeatedly::Counterexample, Error}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Counterexample` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Error` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:357:59 [INFO] [stdout] | [INFO] [stdout] 357 | use crate::runner::{self, repeatedly::Counterexample, Error}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Error` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Stats` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:358:39 [INFO] [stdout] | [INFO] [stdout] 358 | use crate::stats::{Counter, Stat, Stats}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Stats` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Limit` is imported redundantly [INFO] [stdout] --> src/frontend/formatter.rs:359:17 [INFO] [stdout] | [INFO] [stdout] 359 | use crate::{Limit, Prng}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] 360 | [INFO] [stdout] 361 | use super::*; [INFO] [stdout] | -------- the item `Limit` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/util/events.rs:129:17 [INFO] [stdout] | [INFO] [stdout] 129 | 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; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `dicetest` (lib test) due to 2 previous errors; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "e1f64fec32566cddf728805e8e83b960bfc7c574e78b53480d7067818537af8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1f64fec32566cddf728805e8e83b960bfc7c574e78b53480d7067818537af8b", kill_on_drop: false }` [INFO] [stdout] e1f64fec32566cddf728805e8e83b960bfc7c574e78b53480d7067818537af8b