[INFO] cloning repository https://github.com/ccheek21/runiq [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ccheek21/runiq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccheek21%2Fruniq", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccheek21%2Fruniq'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c05688c6057f2e7ffa41acab15689190a7e13e70 [INFO] checking ccheek21/runiq against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccheek21%2Fruniq" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ccheek21/runiq 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/ccheek21/runiq [INFO] finished tweaking git repo https://github.com/ccheek21/runiq [INFO] tweaked toml for git repo https://github.com/ccheek21/runiq written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ccheek21/runiq 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] Blocking waiting for file lock on package cache [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] c53c239bb31ceaf7d666d64b613065702f112fee10c937e02e9788ce165c95bf [INFO] running `Command { std: "docker" "start" "-a" "c53c239bb31ceaf7d666d64b613065702f112fee10c937e02e9788ce165c95bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c53c239bb31ceaf7d666d64b613065702f112fee10c937e02e9788ce165c95bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c53c239bb31ceaf7d666d64b613065702f112fee10c937e02e9788ce165c95bf", kill_on_drop: false }` [INFO] [stdout] c53c239bb31ceaf7d666d64b613065702f112fee10c937e02e9788ce165c95bf [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] a99be88065f8f1836860968136f8c7de27241ffe0be3b56ea9576f5dcac13964 [INFO] running `Command { std: "docker" "start" "-a" "a99be88065f8f1836860968136f8c7de27241ffe0be3b56ea9576f5dcac13964", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Checking regex-syntax v0.6.4 [INFO] [stderr] Checking memchr v2.1.1 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking runiq v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::BufWriter` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::BufWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::{Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:4:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 3 | use std::io::BufWriter; [INFO] [stdout] 4 | use std::io::{Read, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::BufWriter` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::BufWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::{Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:4:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 3 | use std::io::BufWriter; [INFO] [stdout] 4 | use std::io::{Read, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | writeln!(stdout, "{}", line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | writeln!(stdout, "{}", line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s [INFO] running `Command { std: "docker" "inspect" "a99be88065f8f1836860968136f8c7de27241ffe0be3b56ea9576f5dcac13964", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a99be88065f8f1836860968136f8c7de27241ffe0be3b56ea9576f5dcac13964", kill_on_drop: false }` [INFO] [stdout] a99be88065f8f1836860968136f8c7de27241ffe0be3b56ea9576f5dcac13964