Nov 28 17:57:40.801 INFO checking skylane-0.1.2 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 17:57:40.801 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 17:57:41.213 INFO [stdout] 96f920df324dbdf1ed2cc1a745c9182bb0e1cfc285c7b8c384f6002b22ce1975
Nov 28 17:57:41.218 INFO running `"docker" "start" "-a" "96f920df324dbdf1ed2cc1a745c9182bb0e1cfc285c7b8c384f6002b22ce1975"`
Nov 28 17:57:41.738 INFO [stderr] usermod: no changes
Nov 28 17:57:41.784 INFO [stderr]     Checking skylane v0.1.2 (/source)
Nov 28 17:57:42.908 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:57:42.908 INFO [stderr]    --> src/connection.rs:201:22
Nov 28 17:57:42.908 INFO [stderr]     |
Nov 28 17:57:42.908 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Nov 28 17:57:42.908 INFO [stderr]     |                      ----^^^^^^^^^
Nov 28 17:57:42.908 INFO [stderr]     |                      |
Nov 28 17:57:42.908 INFO [stderr]     |                      help: remove this `mut`
Nov 28 17:57:42.908 INFO [stderr]     |
Nov 28 17:57:42.908 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:57:42.908 INFO [stderr] 
Nov 28 17:57:42.908 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:57:42.908 INFO [stderr]    --> src/connection.rs:202:22
Nov 28 17:57:42.908 INFO [stderr]     |
Nov 28 17:57:42.908 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Nov 28 17:57:42.908 INFO [stderr]     |                      ----^^^^^^^
Nov 28 17:57:42.908 INFO [stderr]     |                      |
Nov 28 17:57:42.908 INFO [stderr]     |                      help: remove this `mut`
Nov 28 17:57:42.908 INFO [stderr] 
Nov 28 17:57:43.096 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:57:43.096 INFO [stderr]    --> src/connection.rs:201:22
Nov 28 17:57:43.096 INFO [stderr]     |
Nov 28 17:57:43.096 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Nov 28 17:57:43.096 INFO [stderr]     |                      ----^^^^^^^^^
Nov 28 17:57:43.096 INFO [stderr]     |                      |
Nov 28 17:57:43.096 INFO [stderr]     |                      help: remove this `mut`
Nov 28 17:57:43.096 INFO [stderr]     |
Nov 28 17:57:43.096 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:57:43.096 INFO [stderr] 
Nov 28 17:57:43.096 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:57:43.096 INFO [stderr]    --> src/connection.rs:202:22
Nov 28 17:57:43.096 INFO [stderr]     |
Nov 28 17:57:43.096 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Nov 28 17:57:43.096 INFO [stderr]     |                      ----^^^^^^^
Nov 28 17:57:43.096 INFO [stderr]     |                      |
Nov 28 17:57:43.096 INFO [stderr]     |                      help: remove this `mut`
Nov 28 17:57:43.096 INFO [stderr] 
Nov 28 17:57:43.138 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
Nov 28 17:57:43.148 INFO [stderr] su: No module specific data is present
Nov 28 17:57:44.025 INFO running `"docker" "inspect" "96f920df324dbdf1ed2cc1a745c9182bb0e1cfc285c7b8c384f6002b22ce1975"`
Nov 28 17:57:44.311 INFO running `"docker" "rm" "-f" "96f920df324dbdf1ed2cc1a745c9182bb0e1cfc285c7b8c384f6002b22ce1975"`
Nov 28 17:57:44.561 INFO [stdout] 96f920df324dbdf1ed2cc1a745c9182bb0e1cfc285c7b8c384f6002b22ce1975