[INFO] cloning repository https://github.com/jaimeardp/UsingThreads [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaimeardp/UsingThreads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaimeardp%2FUsingThreads", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaimeardp%2FUsingThreads'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 016953034545f7a60f4491e052df6aa4eefb96aa [INFO] checking jaimeardp/UsingThreads against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaimeardp%2FUsingThreads" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jaimeardp/UsingThreads 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/jaimeardp/UsingThreads [INFO] finished tweaking git repo https://github.com/jaimeardp/UsingThreads [INFO] tweaked toml for git repo https://github.com/jaimeardp/UsingThreads written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jaimeardp/UsingThreads 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 78ca649992df5b04eb3932ec0c2a15dec15876c99cf53495017ed71716c311d0 [INFO] running `Command { std: "docker" "start" "-a" "78ca649992df5b04eb3932ec0c2a15dec15876c99cf53495017ed71716c311d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "78ca649992df5b04eb3932ec0c2a15dec15876c99cf53495017ed71716c311d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78ca649992df5b04eb3932ec0c2a15dec15876c99cf53495017ed71716c311d0", kill_on_drop: false }` [INFO] [stdout] 78ca649992df5b04eb3932ec0c2a15dec15876c99cf53495017ed71716c311d0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] feb488f1aef1de8a586bfb2a7fe5ed04b53597230be3ae5cd6f5865a62d918b2 [INFO] running `Command { std: "docker" "start" "-a" "feb488f1aef1de8a586bfb2a7fe5ed04b53597230be3ae5cd6f5865a62d918b2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling serde v1.0.183 [INFO] [stderr] Compiling serde_json v1.0.104 [INFO] [stderr] Compiling serde_derive v1.0.183 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking itoa v1.0.9 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking my-project v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> src/main.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | pub mod lib; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `uuid::Uuid` [INFO] [stdout] --> src/lib/models/person.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use uuid::Uuid; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/lib/utils/generator.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | use rand::{self, Rng}; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `time::Duration` [INFO] [stdout] --> src/lib/utils/generator.rs:8:39 [INFO] [stdout] | [INFO] [stdout] 8 | use std::{thread, thread::JoinHandle, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> src/main.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | pub mod lib; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `uuid::Uuid` [INFO] [stdout] --> src/lib/models/person.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use uuid::Uuid; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/lib/utils/generator.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | use rand::{self, Rng}; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `time::Duration` [INFO] [stdout] --> src/lib/utils/generator.rs:8:39 [INFO] [stdout] | [INFO] [stdout] 8 | use std::{thread, thread::JoinHandle, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::lib::models` [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::lib::models; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::lib::models` [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::lib::models; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `delay` [INFO] [stdout] --> src/lib/utils/generator.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | let delay = rand::thread_rng().gen_range(10..=2000); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_delay` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `delay` [INFO] [stdout] --> src/lib/utils/generator.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | let delay = rand::thread_rng().gen_range(10..=2000); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_delay` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.28s [INFO] running `Command { std: "docker" "inspect" "feb488f1aef1de8a586bfb2a7fe5ed04b53597230be3ae5cd6f5865a62d918b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "feb488f1aef1de8a586bfb2a7fe5ed04b53597230be3ae5cd6f5865a62d918b2", kill_on_drop: false }` [INFO] [stdout] feb488f1aef1de8a586bfb2a7fe5ed04b53597230be3ae5cd6f5865a62d918b2 [INFO] checking jaimeardp/UsingThreads against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaimeardp%2FUsingThreads" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jaimeardp/UsingThreads 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] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/jaimeardp/UsingThreads [INFO] finished tweaking git repo https://github.com/jaimeardp/UsingThreads [INFO] tweaked toml for git repo https://github.com/jaimeardp/UsingThreads written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/jaimeardp/UsingThreads 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ab43f849fb1709264b8c53ba0898ee145f368e55ab4b4f0a2f96cd48f54ff830 [INFO] running `Command { std: "docker" "start" "-a" "ab43f849fb1709264b8c53ba0898ee145f368e55ab4b4f0a2f96cd48f54ff830", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ab43f849fb1709264b8c53ba0898ee145f368e55ab4b4f0a2f96cd48f54ff830", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab43f849fb1709264b8c53ba0898ee145f368e55ab4b4f0a2f96cd48f54ff830", kill_on_drop: false }` [INFO] [stdout] ab43f849fb1709264b8c53ba0898ee145f368e55ab4b4f0a2f96cd48f54ff830 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fac08e71c0c8bb1f09861bda4cb1f1c47bc6ab71988af77d407ce63b627bc803 [INFO] running `Command { std: "docker" "start" "-a" "fac08e71c0c8bb1f09861bda4cb1f1c47bc6ab71988af77d407ce63b627bc803", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling serde v1.0.183 [INFO] [stderr] Compiling serde_derive v1.0.183 [INFO] [stderr] Compiling serde_json v1.0.104 [INFO] [stderr] Checking itoa v1.0.9 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.183/src/lib_precompiled.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | 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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `serde_derive` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "fac08e71c0c8bb1f09861bda4cb1f1c47bc6ab71988af77d407ce63b627bc803", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fac08e71c0c8bb1f09861bda4cb1f1c47bc6ab71988af77d407ce63b627bc803", kill_on_drop: false }` [INFO] [stdout] fac08e71c0c8bb1f09861bda4cb1f1c47bc6ab71988af77d407ce63b627bc803