Dec 03 18:48:25.967 INFO testing axpy-0.3.0 against 1.30.1 for beta-1.31-5
Dec 03 18:48:25.967 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 18:48:26.154 INFO [stdout] e11dda2d8bfb8456027128bcdf16a530265d064f8b01ea4297cb60441b93e1c4
Dec 03 18:48:26.156 INFO running `"docker" "start" "-a" "e11dda2d8bfb8456027128bcdf16a530265d064f8b01ea4297cb60441b93e1c4"`
Dec 03 18:48:26.721 INFO [stderr] usermod: no changes
Dec 03 18:48:26.747 INFO [stderr]    Compiling axpy v0.3.0 (/source)
Dec 03 18:48:26.815 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Dec 03 18:48:26.817 INFO [stderr] su: No module specific data is present
Dec 03 18:48:27.194 INFO running `"docker" "inspect" "e11dda2d8bfb8456027128bcdf16a530265d064f8b01ea4297cb60441b93e1c4"`
Dec 03 18:48:27.271 INFO running `"docker" "rm" "-f" "e11dda2d8bfb8456027128bcdf16a530265d064f8b01ea4297cb60441b93e1c4"`
Dec 03 18:48:27.372 INFO [stdout] e11dda2d8bfb8456027128bcdf16a530265d064f8b01ea4297cb60441b93e1c4
Dec 03 18:48:27.373 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 18:48:27.587 INFO [stdout] 603e236b250f166c80afebede27f3e546eafa631afde66f945d97dd817e550dd
Dec 03 18:48:27.589 INFO running `"docker" "start" "-a" "603e236b250f166c80afebede27f3e546eafa631afde66f945d97dd817e550dd"`
Dec 03 18:48:28.093 INFO [stderr] usermod: no changes
Dec 03 18:48:28.123 INFO [stderr]    Compiling axpy v0.3.0 (/source)
Dec 03 18:48:28.979 INFO [stderr] note: trace_macro
Dec 03 18:48:28.979 INFO [stderr]   --> tests/trace.rs:20:5
Dec 03 18:48:28.979 INFO [stderr]    |
Dec 03 18:48:28.979 INFO [stderr] 20 |     axpy![z = 2.*z - x + 3. * y];
Dec 03 18:48:28.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 18:48:28.979 INFO [stderr]    |
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { z = 2. * z - x + 3. * y }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [ ! z = (  ) 2. * z - x + 3. * y + . ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { ! z = (  ) 2. * z - x + 3. * y + . }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [ ! z = ( 2. * z ) - x + 3. * y + . ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { ! z = ( 2. * z ) - x + 3. * y + . }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [ ! z = ( 2. * z 0 - x ) + 3. * y + . ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { ! z = ( 2. * z 0 - x ) + 3. * y + . }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [ ! z = ( 2. * z 0 - x 3. * y ) + . ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { ! z = ( 2. * z 0 - x 3. * y ) + . }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `for ( car , cdr ) in axpy ! [ @ z ; z . iter_mut (  ) ; 2. * z 0 - x 3. * y ]
Dec 03 18:48:28.979 INFO [stderr]            { * car = axpy ! [ # z ; car ; cdr ; (  ) 2. * z 0 - x 3. * y ] ; }`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { @ z ; z . iter_mut (  ) ; 2. * z 0 - x 3. * y }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `{
Dec 03 18:48:28.979 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.979 INFO [stderr]            ( z z ) => { axpy ! [ @ z ; z.iter_mut() ; 0 - x 3. * y ] } ; ( z z ) => {
Dec 03 18:48:28.979 INFO [stderr]            z.iter_mut() . zip ( axpy ! [ @ z ; z . iter (  ) ; 0 - x 3. * y ] ) } ; }
Dec 03 18:48:28.979 INFO [stderr]            eval ! ( z z ) }`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `eval! { z z }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [ @ z ; z.iter_mut() ; 0 - x 3. * y ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { @ z ; z.iter_mut() ; 0 - x 3. * y }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `{
Dec 03 18:48:28.979 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.979 INFO [stderr]            ( z z ) => { axpy ! [ @ z ; z.iter_mut() ; 3. * y ] } ; ( x z ) => {
Dec 03 18:48:28.979 INFO [stderr]            z.iter_mut() . zip ( axpy ! [ @ z ; x . iter (  ) ; 3. * y ] ) } ; } eval ! (
Dec 03 18:48:28.979 INFO [stderr]            x z ) }`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `eval! { x z }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `z.iter_mut() . zip ( axpy ! [ @ z ; x . iter (  ) ; 3. * y ] )`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { @ z ; x . iter (  ) ; 3. * y }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `{
Dec 03 18:48:28.979 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.979 INFO [stderr]            ( z z ) => { axpy ! [ @ z ; x.iter() ; ] } ; ( y z ) => {
Dec 03 18:48:28.979 INFO [stderr]            x.iter() . zip ( axpy ! [ @ z ; y . iter (  ) ; ] ) } ; } eval ! ( y z ) }`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `eval! { y z }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `x.iter() . zip ( axpy ! [ @ z ; y . iter (  ) ; ] )`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { @ z ; y . iter (  ) ; }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `y.iter() . map ( | x | ( x , ) )`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { # z ; car ; cdr ; (  ) 2. * z 0 - x 3. * y }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `{
Dec 03 18:48:28.979 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.979 INFO [stderr]            ( z z ) => { axpy ! [ # z ; car ; cdr ; ( + 2. * * car ) 0 - x 3. * y ] } ; (
Dec 03 18:48:28.979 INFO [stderr]            z z ) => { axpy ! [ # z ; car ; cdr . 1 ; ( + 2. * * cdr . 0 ) 0 - x 3. * y ]
Dec 03 18:48:28.979 INFO [stderr]            } ; } eval ! ( z z ) }`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `eval! { z z }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [ # z ; car ; cdr ; ( + 2. * * car ) 0 - x 3. * y ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { # z ; car ; cdr ; ( + 2. * * car ) 0 - x 3. * y }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `{
Dec 03 18:48:28.979 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.979 INFO [stderr]            ( z z ) => { axpy ! [ # z ; car ; cdr ; ( + 2. * * car + - * car ) 3. * y ] }
Dec 03 18:48:28.979 INFO [stderr]            ; ( x z ) => {
Dec 03 18:48:28.979 INFO [stderr]            axpy ! [ # z ; car ; cdr . 1 ; ( + 2. * * car + - * cdr . 0 ) 3. * y ] } ; }
Dec 03 18:48:28.979 INFO [stderr]            eval ! ( x z ) }`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `eval! { x z }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [ # z ; car ; cdr . 1 ; ( + 2. * * car + - * cdr . 0 ) 3. * y ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { # z ; car ; cdr . 1 ; ( + 2. * * car + - * cdr . 0 ) 3. * y }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `{
Dec 03 18:48:28.979 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.979 INFO [stderr]            ( z z ) => {
Dec 03 18:48:28.979 INFO [stderr]            axpy ! [ # z ; car ; cdr.1 ; ( + 2. * * car + - * cdr . 0 + 3. * * car ) ] } ;
Dec 03 18:48:28.979 INFO [stderr]            ( y z ) => {
Dec 03 18:48:28.979 INFO [stderr]            axpy ! [
Dec 03 18:48:28.979 INFO [stderr]            # z ; car ; cdr.1 . 1 ; ( + 2. * * car + - * cdr . 0 + 3. * * cdr.1 . 0 ) ] }
Dec 03 18:48:28.979 INFO [stderr]            ; } eval ! ( y z ) }`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `eval! { y z }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `axpy ! [
Dec 03 18:48:28.979 INFO [stderr]            # z ; car ; cdr.1 . 1 ; ( + 2. * * car + - * cdr . 0 + 3. * * cdr.1 . 0 ) ]`
Dec 03 18:48:28.979 INFO [stderr]    = note: expanding `axpy! { # z ; car ; cdr.1 . 1 ; ( + 2. * * car + - * cdr . 0 + 3. * * cdr.1 . 0 ) }`
Dec 03 18:48:28.979 INFO [stderr]    = note: to `2. * * car + - * cdr . 0 + 3. * * cdr.1 . 0`
Dec 03 18:48:28.979 INFO [stderr] 
Dec 03 18:48:28.979 INFO [stderr] note: trace_macro
Dec 03 18:48:28.979 INFO [stderr]   --> tests/trace.rs:11:5
Dec 03 18:48:28.979 INFO [stderr]    |
Dec 03 18:48:28.979 INFO [stderr] 11 |     axpy![z = x + y];
Dec 03 18:48:28.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 03 18:48:28.979 INFO [stderr]    |
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { z = x + y }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `axpy ! [ ! z = (  ) x + y + . ]`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { ! z = (  ) x + y + . }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `axpy ! [ ! z = ( 0 + x ) + y + . ]`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { ! z = ( 0 + x ) + y + . }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `axpy ! [ ! z = ( 0 + x 0 + y ) + . ]`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { ! z = ( 0 + x 0 + y ) + . }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `for ( car , cdr ) in axpy ! [ @ z ; z . iter_mut (  ) ; 0 + x 0 + y ] {
Dec 03 18:48:28.980 INFO [stderr]            * car = axpy ! [ # z ; car ; cdr ; (  ) 0 + x 0 + y ] ; }`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { @ z ; z . iter_mut (  ) ; 0 + x 0 + y }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `{
Dec 03 18:48:28.980 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.980 INFO [stderr]            ( z z ) => { axpy ! [ @ z ; z.iter_mut() ; 0 + y ] } ; ( x z ) => {
Dec 03 18:48:28.980 INFO [stderr]            z.iter_mut() . zip ( axpy ! [ @ z ; x . iter (  ) ; 0 + y ] ) } ; } eval ! (
Dec 03 18:48:28.980 INFO [stderr]            x z ) }`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `eval! { x z }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `z.iter_mut() . zip ( axpy ! [ @ z ; x . iter (  ) ; 0 + y ] )`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { @ z ; x . iter (  ) ; 0 + y }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `{
Dec 03 18:48:28.980 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.980 INFO [stderr]            ( z z ) => { axpy ! [ @ z ; x.iter() ; ] } ; ( y z ) => {
Dec 03 18:48:28.980 INFO [stderr]            x.iter() . zip ( axpy ! [ @ z ; y . iter (  ) ; ] ) } ; } eval ! ( y z ) }`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `eval! { y z }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `x.iter() . zip ( axpy ! [ @ z ; y . iter (  ) ; ] )`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { @ z ; y . iter (  ) ; }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `y.iter() . map ( | x | ( x , ) )`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { # z ; car ; cdr ; (  ) 0 + x 0 + y }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `{
Dec 03 18:48:28.980 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.980 INFO [stderr]            ( z z ) => { axpy ! [ # z ; car ; cdr ; ( + * car ) 0 + y ] } ; ( x z ) => {
Dec 03 18:48:28.980 INFO [stderr]            axpy ! [ # z ; car ; cdr . 1 ; ( + * cdr . 0 ) 0 + y ] } ; } eval ! ( x z ) }`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `eval! { x z }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `axpy ! [ # z ; car ; cdr . 1 ; ( + * cdr . 0 ) 0 + y ]`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { # z ; car ; cdr . 1 ; ( + * cdr . 0 ) 0 + y }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `{
Dec 03 18:48:28.980 INFO [stderr]            macro_rules ! eval {
Dec 03 18:48:28.980 INFO [stderr]            ( z z ) => { axpy ! [ # z ; car ; cdr.1 ; ( + * cdr . 0 + * car ) ] } ; ( y z
Dec 03 18:48:28.980 INFO [stderr]            ) => { axpy ! [ # z ; car ; cdr.1 . 1 ; ( + * cdr . 0 + * cdr.1 . 0 ) ] } ; }
Dec 03 18:48:28.980 INFO [stderr]            eval ! ( y z ) }`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `eval! { y z }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `axpy ! [ # z ; car ; cdr.1 . 1 ; ( + * cdr . 0 + * cdr.1 . 0 ) ]`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `axpy! { # z ; car ; cdr.1 . 1 ; ( + * cdr . 0 + * cdr.1 . 0 ) }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `* cdr . 0 + * cdr.1 . 0`
Dec 03 18:48:28.980 INFO [stderr] 
Dec 03 18:48:28.980 INFO [stderr] note: trace_macro
Dec 03 18:48:28.980 INFO [stderr]   --> tests/trace.rs:12:5
Dec 03 18:48:28.980 INFO [stderr]    |
Dec 03 18:48:28.980 INFO [stderr] 12 |     assert_eq!(z, [5, 5, 5, 5]);
Dec 03 18:48:28.980 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 18:48:28.980 INFO [stderr]    |
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `assert_eq! { z , [ 5 , 5 , 5 , 5 ] }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `{
Dec 03 18:48:28.980 INFO [stderr]            match ( & z , & [5, 5, 5, 5] ) {
Dec 03 18:48:28.980 INFO [stderr]            ( left_val , right_val ) => {
Dec 03 18:48:28.980 INFO [stderr]            if ! ( * left_val == * right_val ) {
Dec 03 18:48:28.980 INFO [stderr]            panic ! (
Dec 03 18:48:28.980 INFO [stderr]            r#"assertion failed: `(left == right)`
Dec 03 18:48:28.980 INFO [stderr]              left: `{:?}`,
Dec 03 18:48:28.980 INFO [stderr]             right: `{:?}`"# ,
Dec 03 18:48:28.980 INFO [stderr]            left_val , right_val ) } } } }`
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `panic! { r#"assertion failed: `(left == right)`
Dec 03 18:48:28.980 INFO [stderr]              left: `{:?}`,
Dec 03 18:48:28.980 INFO [stderr]             right: `{:?}`"# ,
Dec 03 18:48:28.980 INFO [stderr]            left_val , right_val }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `{
Dec 03 18:48:28.980 INFO [stderr]            $crate :: rt :: begin_panic_fmt (
Dec 03 18:48:28.980 INFO [stderr]            & format_args ! (
Dec 03 18:48:28.980 INFO [stderr]            r#"assertion failed: `(left == right)`
Dec 03 18:48:28.980 INFO [stderr]              left: `{:?}`,
Dec 03 18:48:28.980 INFO [stderr]             right: `{:?}`"# ,
Dec 03 18:48:28.980 INFO [stderr]            left_val , right_val ) , & (
Dec 03 18:48:28.980 INFO [stderr]            file ! (  ) , line ! (  ) , __rust_unstable_column ! (  ) ) ) }`
Dec 03 18:48:28.980 INFO [stderr] 
Dec 03 18:48:28.980 INFO [stderr] note: trace_macro
Dec 03 18:48:28.980 INFO [stderr]   --> tests/trace.rs:21:5
Dec 03 18:48:28.980 INFO [stderr]    |
Dec 03 18:48:28.980 INFO [stderr] 21 |     assert_eq!(z, [31f64, 207., 2003., 19999.]);
Dec 03 18:48:28.980 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 18:48:28.980 INFO [stderr]    |
Dec 03 18:48:28.980 INFO [stderr]    = note: expanding `assert_eq! { z , [ 31f64 , 207. , 2003. , 19999. ] }`
Dec 03 18:48:28.980 INFO [stderr]    = note: to `{
Dec 03 18:48:28.980 INFO [stderr]            match ( & z , & [31f64, 207., 2003., 19999.] ) {
Dec 03 18:48:28.980 INFO [stderr]            ( left_val , right_val ) => {
Dec 03 18:48:28.980 INFO [stderr]            if ! ( * left_val == * right_val ) {
Dec 03 18:48:28.980 INFO [stderr]            panic ! (
Dec 03 18:48:28.980 INFO [stderr]            r#"assertion failed: `(left == right)`
Dec 03 18:48:28.980 INFO [stderr]              left: `{:?}`,
Dec 03 18:48:28.981 INFO [stderr]             right: `{:?}`"# ,
Dec 03 18:48:28.981 INFO [stderr]            left_val , right_val ) } } } }`
Dec 03 18:48:28.981 INFO [stderr]    = note: expanding `panic! { r#"assertion failed: `(left == right)`
Dec 03 18:48:28.981 INFO [stderr]              left: `{:?}`,
Dec 03 18:48:28.981 INFO [stderr]             right: `{:?}`"# ,
Dec 03 18:48:28.981 INFO [stderr]            left_val , right_val }`
Dec 03 18:48:28.981 INFO [stderr]    = note: to `{
Dec 03 18:48:28.981 INFO [stderr]            $crate :: rt :: begin_panic_fmt (
Dec 03 18:48:28.981 INFO [stderr]            & format_args ! (
Dec 03 18:48:28.981 INFO [stderr]            r#"assertion failed: `(left == right)`
Dec 03 18:48:28.981 INFO [stderr]              left: `{:?}`,
Dec 03 18:48:28.981 INFO [stderr]             right: `{:?}`"# ,
Dec 03 18:48:28.981 INFO [stderr]            left_val , right_val ) , & (
Dec 03 18:48:28.981 INFO [stderr]            file ! (  ) , line ! (  ) , __rust_unstable_column ! (  ) ) ) }`
Dec 03 18:48:28.981 INFO [stderr] 
Dec 03 18:48:28.981 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 18:48:28.981 INFO [stderr]  --> tests/trace.rs:1:1
Dec 03 18:48:28.981 INFO [stderr]   |
Dec 03 18:48:28.981 INFO [stderr] 1 | #![feature(trace_macros)]
Dec 03 18:48:28.981 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 18:48:28.981 INFO [stderr] 
Dec 03 18:48:28.981 INFO [stderr] error: aborting due to previous error
Dec 03 18:48:28.981 INFO [stderr] 
Dec 03 18:48:28.981 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 18:48:28.994 INFO [stderr] error: Could not compile `axpy`.
Dec 03 18:48:28.995 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 18:48:29.248 INFO [stderr] error: build failed
Dec 03 18:48:29.250 INFO [stderr] su: No module specific data is present
Dec 03 18:48:29.552 INFO running `"docker" "inspect" "603e236b250f166c80afebede27f3e546eafa631afde66f945d97dd817e550dd"`
Dec 03 18:48:29.632 INFO running `"docker" "rm" "-f" "603e236b250f166c80afebede27f3e546eafa631afde66f945d97dd817e550dd"`
Dec 03 18:48:29.713 INFO [stdout] 603e236b250f166c80afebede27f3e546eafa631afde66f945d97dd817e550dd