[INFO] updating cached repository https://github.com/basile-henry/dither
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 165ef0ba67db837b3926a7f8ebb6ef017f4297a3
[INFO] testing basile-henry/dither against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasile-henry%2Fdither" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/basile-henry/dither on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/basile-henry/dither
[INFO] finished tweaking git repo https://github.com/basile-henry/dither
[INFO] tweaked toml for git repo https://github.com/basile-henry/dither written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/basile-henry/dither already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0f1066856e0521582017c1bb2db177f6038cdb14aa8a431f7fa1eee7113aecbc
[INFO] running `"docker" "start" "-a" "0f1066856e0521582017c1bb2db177f6038cdb14aa8a431f7fa1eee7113aecbc"`
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling safe-transmute v0.10.1
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.1
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling png v0.14.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.0
[INFO] [stderr]    Compiling dither v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `*to` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let [rt, gt, bt] = &to.data;
[INFO] [stderr]    |                        -------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 42 |     to.clone_from(&Rgb([add_err(rt, re), add_err(gt, ge), add_err(bt, be)]));
[INFO] [stderr]    |     ^^                          -- immutable borrow later used here
[INFO] [stderr]    |     |
[INFO] [stderr]    |     mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.11s
[INFO] running `"docker" "inspect" "0f1066856e0521582017c1bb2db177f6038cdb14aa8a431f7fa1eee7113aecbc"`
[INFO] running `"docker" "rm" "-f" "0f1066856e0521582017c1bb2db177f6038cdb14aa8a431f7fa1eee7113aecbc"`
[INFO] [stdout] 0f1066856e0521582017c1bb2db177f6038cdb14aa8a431f7fa1eee7113aecbc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c459f929a49842e41e9270b4a0cd896ac5829a9787d29d3b23740e6871601889
[INFO] running `"docker" "start" "-a" "c459f929a49842e41e9270b4a0cd896ac5829a9787d29d3b23740e6871601889"`
[INFO] [stderr]    Compiling dither v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `*to` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let [rt, gt, bt] = &to.data;
[INFO] [stderr]    |                        -------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 42 |     to.clone_from(&Rgb([add_err(rt, re), add_err(gt, ge), add_err(bt, be)]));
[INFO] [stderr]    |     ^^                          -- immutable borrow later used here
[INFO] [stderr]    |     |
[INFO] [stderr]    |     mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "c459f929a49842e41e9270b4a0cd896ac5829a9787d29d3b23740e6871601889"`
[INFO] running `"docker" "rm" "-f" "c459f929a49842e41e9270b4a0cd896ac5829a9787d29d3b23740e6871601889"`
[INFO] [stdout] c459f929a49842e41e9270b4a0cd896ac5829a9787d29d3b23740e6871601889
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3acdca8b86eded5887b0dcd8c1eba35f4d3dbb4d7d4947a8635701c89bb17719
[INFO] running `"docker" "start" "-a" "3acdca8b86eded5887b0dcd8c1eba35f4d3dbb4d7d4947a8635701c89bb17719"`
[INFO] [stderr] warning: cannot borrow `*to` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/main.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let [rt, gt, bt] = &to.data;
[INFO] [stderr]    |                        -------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 42 |     to.clone_from(&Rgb([add_err(rt, re), add_err(gt, ge), add_err(bt, be)]));
[INFO] [stderr]    |     ^^                          -- immutable borrow later used here
[INFO] [stderr]    |     |
[INFO] [stderr]    |     mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dither-990ecc1fd94ce7c5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3acdca8b86eded5887b0dcd8c1eba35f4d3dbb4d7d4947a8635701c89bb17719"`
[INFO] running `"docker" "rm" "-f" "3acdca8b86eded5887b0dcd8c1eba35f4d3dbb4d7d4947a8635701c89bb17719"`
[INFO] [stdout] 3acdca8b86eded5887b0dcd8c1eba35f4d3dbb4d7d4947a8635701c89bb17719