[INFO] cloning repository https://github.com/rzru/ruls
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rzru/ruls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frzru%2Fruls", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frzru%2Fruls'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44fedac3ae108c9c273cb36ec8a2696a20a7c5a5
[INFO] checking rzru/ruls against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frzru%2Fruls" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rzru/ruls 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/rzru/ruls
[INFO] finished tweaking git repo https://github.com/rzru/ruls
[INFO] tweaked toml for git repo https://github.com/rzru/ruls written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rzru/ruls 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 termion v1.5.6
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded libc v0.2.102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bf9737b1e81178408c852462fe8dc2a1e6799d6820ad8d25dcba7bce38ca4d72
[INFO] running `Command { std: "docker" "start" "-a" "bf9737b1e81178408c852462fe8dc2a1e6799d6820ad8d25dcba7bce38ca4d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf9737b1e81178408c852462fe8dc2a1e6799d6820ad8d25dcba7bce38ca4d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf9737b1e81178408c852462fe8dc2a1e6799d6820ad8d25dcba7bce38ca4d72", kill_on_drop: false }`
[INFO] [stdout] bf9737b1e81178408c852462fe8dc2a1e6799d6820ad8d25dcba7bce38ca4d72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ac477228a321aa51d63401bf7f2fbead7db9e8bc8451cae2944a24e4dac67e06
[INFO] running `Command { std: "docker" "start" "-a" "ac477228a321aa51d63401bf7f2fbead7db9e8bc8451cae2944a24e4dac67e06", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking is_executable v1.0.1
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking ruls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `symlink_metadata`
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::{DirEntry, symlink_metadata, read_dir};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `symlink_metadata`
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::{DirEntry, symlink_metadata, read_dir};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_archive` is never used
[INFO] [stdout]   --> src/structs/printer.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub trait Print {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn print_archive(&self) -> ();
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_archive` is never used
[INFO] [stdout]   --> src/structs/printer.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub trait Print {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn print_archive(&self) -> ();
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "ac477228a321aa51d63401bf7f2fbead7db9e8bc8451cae2944a24e4dac67e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac477228a321aa51d63401bf7f2fbead7db9e8bc8451cae2944a24e4dac67e06", kill_on_drop: false }`
[INFO] [stdout] ac477228a321aa51d63401bf7f2fbead7db9e8bc8451cae2944a24e4dac67e06