[INFO] updating cached repository https://github.com/chucksmash/schaching
[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] 6c28e2e4988413791ad4a4db533bcd360f96553a
[INFO] checking chucksmash/schaching against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchucksmash%2Fschaching" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chucksmash/schaching on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chucksmash/schaching
[INFO] finished tweaking git repo https://github.com/chucksmash/schaching
[INFO] tweaked toml for git repo https://github.com/chucksmash/schaching written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/chucksmash/schaching already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1784691433c496105a2332a071716e08d63383ea154e840e106de0da342b8e09
[INFO] running `"docker" "start" "-a" "1784691433c496105a2332a071716e08d63383ea154e840e106de0da342b8e09"`
[INFO] [stderr]     Checking schaching v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]   --> src/main.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 12 |     use std::usize;
[INFO] [stderr]    |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 73 |             use std::usize;
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]    --> src/main.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 12  |     use std::usize;
[INFO] [stderr]     |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 106 |             use std::usize;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]    --> src/main.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 12  |     use std::usize;
[INFO] [stderr]     |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 178 |             use std::usize;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]    --> src/main.rs:186:17
[INFO] [stderr]     |
[INFO] [stderr] 12  |     use std::usize;
[INFO] [stderr]     |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 186 |             use std::usize;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]   --> src/main.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 12 |     use std::usize;
[INFO] [stderr]    |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 73 |             use std::usize;
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]    --> src/main.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 12  |     use std::usize;
[INFO] [stderr]     |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 106 |             use std::usize;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]    --> src/main.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 12  |     use std::usize;
[INFO] [stderr]     |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 178 |             use std::usize;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `usize` is imported redundantly
[INFO] [stderr]    --> src/main.rs:186:17
[INFO] [stderr]     |
[INFO] [stderr] 12  |     use std::usize;
[INFO] [stderr]     |         ---------- the item `usize` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 186 |             use std::usize;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Piece` is imported redundantly
[INFO] [stderr]    --> src/main.rs:582:17
[INFO] [stderr]     |
[INFO] [stderr] 577 |         use super::*;
[INFO] [stderr]     |             -------- the item `Piece` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 582 |             use super::super::piece::Piece;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `"docker" "inspect" "1784691433c496105a2332a071716e08d63383ea154e840e106de0da342b8e09"`
[INFO] running `"docker" "rm" "-f" "1784691433c496105a2332a071716e08d63383ea154e840e106de0da342b8e09"`
[INFO] [stdout] 1784691433c496105a2332a071716e08d63383ea154e840e106de0da342b8e09