Nov 28 06:53:12.117 INFO checking davidbarsky/trace-prototype against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 06:53:12.117 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 06:53:12.610 INFO [stdout] 8188d5eb9251952397c855f495369e45c77987b1acb871f8b96fa1b5fa68949c
Nov 28 06:53:12.612 INFO running `"docker" "start" "-a" "8188d5eb9251952397c855f495369e45c77987b1acb871f8b96fa1b5fa68949c"`
Nov 28 06:53:13.873 INFO [stderr] usermod: no changes
Nov 28 06:53:13.928 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Nov 28 06:53:14.044 INFO [stderr]     Checking crossbeam v0.4.1
Nov 28 06:53:15.409 INFO [stderr]     Checking trace-prototype v0.1.0 (/source)
Nov 28 06:53:17.109 INFO [stderr] warning: unused import: `channel`
Nov 28 06:53:17.109 INFO [stderr]   --> src/main.rs:15:17
Nov 28 06:53:17.109 INFO [stderr]    |
Nov 28 06:53:17.110 INFO [stderr] 15 | use crossbeam::{channel, queue::SegQueue, Receiver, Sender};
Nov 28 06:53:17.110 INFO [stderr]    |                 ^^^^^^^
Nov 28 06:53:17.110 INFO [stderr]    |
Nov 28 06:53:17.111 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 06:53:17.111 INFO [stderr] 
Nov 28 06:53:17.192 INFO [stderr] warning: type alias is never used: `Channels`
Nov 28 06:53:17.192 INFO [stderr]   --> src/main.rs:36:1
Nov 28 06:53:17.192 INFO [stderr]    |
Nov 28 06:53:17.192 INFO [stderr] 36 | type Channels = Vec<(Sender<Span>, Receiver<Span>)>;
Nov 28 06:53:17.192 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:53:17.192 INFO [stderr]    |
Nov 28 06:53:17.192 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 06:53:17.192 INFO [stderr] 
Nov 28 06:53:17.192 INFO [stderr] warning: struct is never constructed: `Super`
Nov 28 06:53:17.192 INFO [stderr]   --> src/main.rs:37:1
Nov 28 06:53:17.192 INFO [stderr]    |
Nov 28 06:53:17.192 INFO [stderr] 37 | struct Super {
Nov 28 06:53:17.192 INFO [stderr]    | ^^^^^^^^^^^^
Nov 28 06:53:17.192 INFO [stderr] 
Nov 28 06:53:17.192 INFO [stderr] warning: method is never used: `new`
Nov 28 06:53:17.193 INFO [stderr]   --> src/main.rs:43:5
Nov 28 06:53:17.193 INFO [stderr]    |
Nov 28 06:53:17.193 INFO [stderr] 43 |     fn new(queue: SegQueue<Span>, channels: Channels) -> Self {
Nov 28 06:53:17.193 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:53:17.193 INFO [stderr] 
Nov 28 06:53:17.240 INFO [stderr] warning: unused import: `channel`
Nov 28 06:53:17.240 INFO [stderr]   --> src/main.rs:15:17
Nov 28 06:53:17.240 INFO [stderr]    |
Nov 28 06:53:17.240 INFO [stderr] 15 | use crossbeam::{channel, queue::SegQueue, Receiver, Sender};
Nov 28 06:53:17.240 INFO [stderr]    |                 ^^^^^^^
Nov 28 06:53:17.240 INFO [stderr]    |
Nov 28 06:53:17.240 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 06:53:17.240 INFO [stderr] 
Nov 28 06:53:17.331 INFO [stderr] warning: type alias is never used: `Channels`
Nov 28 06:53:17.331 INFO [stderr]   --> src/main.rs:36:1
Nov 28 06:53:17.331 INFO [stderr]    |
Nov 28 06:53:17.331 INFO [stderr] 36 | type Channels = Vec<(Sender<Span>, Receiver<Span>)>;
Nov 28 06:53:17.331 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:53:17.331 INFO [stderr]    |
Nov 28 06:53:17.331 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 06:53:17.331 INFO [stderr] 
Nov 28 06:53:17.331 INFO [stderr] warning: struct is never constructed: `Super`
Nov 28 06:53:17.331 INFO [stderr]   --> src/main.rs:37:1
Nov 28 06:53:17.331 INFO [stderr]    |
Nov 28 06:53:17.331 INFO [stderr] 37 | struct Super {
Nov 28 06:53:17.331 INFO [stderr]    | ^^^^^^^^^^^^
Nov 28 06:53:17.331 INFO [stderr] 
Nov 28 06:53:17.331 INFO [stderr] warning: method is never used: `new`
Nov 28 06:53:17.331 INFO [stderr]   --> src/main.rs:43:5
Nov 28 06:53:17.331 INFO [stderr]    |
Nov 28 06:53:17.331 INFO [stderr] 43 |     fn new(queue: SegQueue<Span>, channels: Channels) -> Self {
Nov 28 06:53:17.331 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:53:17.331 INFO [stderr] 
Nov 28 06:53:17.353 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
Nov 28 06:53:17.359 INFO [stderr] su: No module specific data is present
Nov 28 06:53:17.989 INFO running `"docker" "inspect" "8188d5eb9251952397c855f495369e45c77987b1acb871f8b96fa1b5fa68949c"`
Nov 28 06:53:18.320 INFO running `"docker" "rm" "-f" "8188d5eb9251952397c855f495369e45c77987b1acb871f8b96fa1b5fa68949c"`
Nov 28 06:53:18.636 INFO [stdout] 8188d5eb9251952397c855f495369e45c77987b1acb871f8b96fa1b5fa68949c