[INFO] updating cached repository https://github.com/phoomparin/rust-labs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cef8de9d6766a5fc9a490374e5ab2b80c1462404
[INFO] checking phoomparin/rust-labs against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphoomparin%2Frust-labs" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/phoomparin/rust-labs on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/phoomparin/rust-labs
[INFO] finished tweaking git repo https://github.com/phoomparin/rust-labs
[INFO] tweaked toml for git repo https://github.com/phoomparin/rust-labs written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/phoomparin/rust-labs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] da3e91fa734612df8b28e8dad43fcbd9be44e06bb4849efe749d267bc03f5782
[INFO] running `"docker" "start" "-a" "da3e91fa734612df8b28e8dad43fcbd9be44e06bb4849efe749d267bc03f5782"`
[INFO] [stderr]     Checking peridot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:27
[INFO] [stderr]    |
[INFO] [stderr] 59 |   pub extensions: Vec<Box<Extension>>,
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:70:36
[INFO] [stderr]    |
[INFO] [stderr] 70 |   fn configure(&mut self, ext: Box<Extension>) {
[INFO] [stderr]    |                                    ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:27
[INFO] [stderr]    |
[INFO] [stderr] 59 |   pub extensions: Vec<Box<Extension>>,
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:70:36
[INFO] [stderr]    |
[INFO] [stderr] 70 |   fn configure(&mut self, ext: Box<Extension>) {
[INFO] [stderr]    |                                    ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "da3e91fa734612df8b28e8dad43fcbd9be44e06bb4849efe749d267bc03f5782"`
[INFO] running `"docker" "rm" "-f" "da3e91fa734612df8b28e8dad43fcbd9be44e06bb4849efe749d267bc03f5782"`
[INFO] [stdout] da3e91fa734612df8b28e8dad43fcbd9be44e06bb4849efe749d267bc03f5782