[INFO] cloning repository https://github.com/tehpsy/BocoSolver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tehpsy/BocoSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehpsy%2FBocoSolver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehpsy%2FBocoSolver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 64403a9d2588f6164ea2374796dd60c0209ff6f1 [INFO] checking tehpsy/BocoSolver against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehpsy%2FBocoSolver" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tehpsy/BocoSolver 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/tehpsy/BocoSolver [INFO] finished tweaking git repo https://github.com/tehpsy/BocoSolver [INFO] tweaked toml for git repo https://github.com/tehpsy/BocoSolver written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tehpsy/BocoSolver 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] Downloading crates ... [INFO] [stderr] Downloaded tinyset v0.4.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0371cacbe327a67a2aaa1ac2cb291632ddbe85e55c7631718507e53f2ca5c73a [INFO] running `Command { std: "docker" "start" "-a" "0371cacbe327a67a2aaa1ac2cb291632ddbe85e55c7631718507e53f2ca5c73a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0371cacbe327a67a2aaa1ac2cb291632ddbe85e55c7631718507e53f2ca5c73a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0371cacbe327a67a2aaa1ac2cb291632ddbe85e55c7631718507e53f2ca5c73a", kill_on_drop: false }` [INFO] [stdout] 0371cacbe327a67a2aaa1ac2cb291632ddbe85e55c7631718507e53f2ca5c73a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e29b449f675f55185f0c5541ad21013cee4388f9fb04176b2adbe74d5bb904ed [INFO] running `Command { std: "docker" "start" "-a" "e29b449f675f55185f0c5541ad21013cee4388f9fb04176b2adbe74d5bb904ed", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling hashbrown v0.8.2 [INFO] [stderr] Compiling indexmap v1.5.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking crossbeam-epoch v0.9.4 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking petgraph v0.5.1 [INFO] [stderr] Checking tinyset v0.4.4 [INFO] [stderr] Compiling enum-iterator-derive v0.6.0 [INFO] [stderr] Checking enum-iterator v0.6.0 [INFO] [stderr] Checking boco_solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `HashMap` is imported redundantly [INFO] [stdout] --> src/solver.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::*; [INFO] [stdout] | -------- the item `HashMap` is already imported here [INFO] [stdout] 2 | [INFO] [stdout] 3 | use std::{collections::HashMap, convert::TryInto}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `utils` is imported redundantly [INFO] [stdout] --> src/solver.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::*; [INFO] [stdout] | -------- the item `utils` is already imported here [INFO] [stdout] ... [INFO] [stdout] 12 | use utils; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `hasher` is imported redundantly [INFO] [stdout] --> src/solver.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::*; [INFO] [stdout] | -------- the item `hasher` is already imported here [INFO] [stdout] ... [INFO] [stdout] 13 | use hasher; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/model/board.rs:65:25 [INFO] [stdout] | [INFO] [stdout] 65 | (block.large == None || block.large.unwrap().orientation == *orientation), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 65 - (block.large == None || block.large.unwrap().orientation == *orientation), [INFO] [stdout] 65 + block.large == None || block.large.unwrap().orientation == *orientation, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `HashMap` [INFO] [stdout] --> src/main.rs:8:25 [INFO] [stdout] | [INFO] [stdout] 8 | use std::{collections::{HashMap}}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `model::NetworkNode` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use model::NetworkNode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `HashMap` is imported redundantly [INFO] [stdout] --> src/solver.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::*; [INFO] [stdout] | -------- the item `HashMap` is already imported here [INFO] [stdout] 2 | [INFO] [stdout] 3 | use std::{collections::HashMap, convert::TryInto}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `utils` is imported redundantly [INFO] [stdout] --> src/solver.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::*; [INFO] [stdout] | -------- the item `utils` is already imported here [INFO] [stdout] ... [INFO] [stdout] 12 | use utils; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `hasher` is imported redundantly [INFO] [stdout] --> src/solver.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::*; [INFO] [stdout] | -------- the item `hasher` is already imported here [INFO] [stdout] ... [INFO] [stdout] 13 | use hasher; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/model/board.rs:65:25 [INFO] [stdout] | [INFO] [stdout] 65 | (block.large == None || block.large.unwrap().orientation == *orientation), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 65 - (block.large == None || block.large.unwrap().orientation == *orientation), [INFO] [stdout] 65 + block.large == None || block.large.unwrap().orientation == *orientation, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: duplicated attribute [INFO] [stdout] --> src/builder.rs:328:5 [INFO] [stdout] | [INFO] [stdout] 328 | #[test] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(duplicate_macro_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `HashMap` [INFO] [stdout] --> src/main.rs:8:25 [INFO] [stdout] | [INFO] [stdout] 8 | use std::{collections::{HashMap}}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `model::NetworkNode` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use model::NetworkNode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/test.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/builder.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut block = new_board.blocks.get_mut(&position).unwrap(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/builder.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut block = new_board.blocks.get_mut(&position).unwrap(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s [INFO] running `Command { std: "docker" "inspect" "e29b449f675f55185f0c5541ad21013cee4388f9fb04176b2adbe74d5bb904ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e29b449f675f55185f0c5541ad21013cee4388f9fb04176b2adbe74d5bb904ed", kill_on_drop: false }` [INFO] [stdout] e29b449f675f55185f0c5541ad21013cee4388f9fb04176b2adbe74d5bb904ed [INFO] checking tehpsy/BocoSolver against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehpsy%2FBocoSolver" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tehpsy/BocoSolver 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/tehpsy/BocoSolver [INFO] finished tweaking git repo https://github.com/tehpsy/BocoSolver [INFO] tweaked toml for git repo https://github.com/tehpsy/BocoSolver written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tehpsy/BocoSolver 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 713c6733d4d88890a57d2d1bde2c577d72b5109bbda2d6ff735d12d97cebc773 [INFO] running `Command { std: "docker" "start" "-a" "713c6733d4d88890a57d2d1bde2c577d72b5109bbda2d6ff735d12d97cebc773", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "713c6733d4d88890a57d2d1bde2c577d72b5109bbda2d6ff735d12d97cebc773", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "713c6733d4d88890a57d2d1bde2c577d72b5109bbda2d6ff735d12d97cebc773", kill_on_drop: false }` [INFO] [stdout] 713c6733d4d88890a57d2d1bde2c577d72b5109bbda2d6ff735d12d97cebc773 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 62e8f4802de59716af098695fca7d8e63a324eada08ee89fcd9e75d37a4f4f03 [INFO] running `Command { std: "docker" "start" "-a" "62e8f4802de59716af098695fca7d8e63a324eada08ee89fcd9e75d37a4f4f03", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling hashbrown v0.8.2 [INFO] [stderr] Compiling indexmap v1.5.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.4/src/sync/parker.rs:364:25 [INFO] [stdout] | [INFO] [stdout] 364 | / match self.state.swap(EMPTY, SeqCst) { [INFO] [stdout] 365 | | NOTIFIED | PARKED => return, [INFO] [stdout] 366 | | n => panic!("inconsistent park_timeout state: {}", n), [INFO] [stdout] 367 | | }; [INFO] [stdout] | |_________________________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.5.1 [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 `crossbeam-utils` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "62e8f4802de59716af098695fca7d8e63a324eada08ee89fcd9e75d37a4f4f03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62e8f4802de59716af098695fca7d8e63a324eada08ee89fcd9e75d37a4f4f03", kill_on_drop: false }` [INFO] [stdout] 62e8f4802de59716af098695fca7d8e63a324eada08ee89fcd9e75d37a4f4f03