[INFO] cloning repository https://github.com/michaelmelanson/wasm-kernel
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelmelanson/wasm-kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelmelanson%2Fwasm-kernel"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelmelanson%2Fwasm-kernel'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fe497a1d55cf5915492ed3bf5b8b1b1b00f1f97d
[INFO] checking michaelmelanson/wasm-kernel against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelmelanson%2Fwasm-kernel" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelmelanson/wasm-kernel on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/michaelmelanson/wasm-kernel
[INFO] finished tweaking git repo https://github.com/michaelmelanson/wasm-kernel
[INFO] tweaked toml for git repo https://github.com/michaelmelanson/wasm-kernel written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/michaelmelanson/wasm-kernel already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b92cff5226688a0194575b9fc44168c8dc52b4cb273f1f9bc80dcbd277727c93
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b92cff5226688a0194575b9fc44168c8dc52b4cb273f1f9bc80dcbd277727c93"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking ucs2 v0.1.0
[INFO] [stderr]     Checking libm v0.1.2
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking x86_64 v0.2.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/cos.rs:53:16
[INFO] [stderr]    |
[INFO] [stderr] 53 |             if x as i32 == 0 {
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/exp.rs:123:17
[INFO] [stderr]     |
[INFO] [stderr] 123 |             k = (INVLN2 * x + HALF[sign as usize]) as i32;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i32` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/expf.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             k = (INV_LN2 * x + HALF[sign as usize]) as i32;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/expm1.rs:69:17
[INFO] [stderr]    |
[INFO] [stderr] 69 |             k = (INVLN2 * x + if sign != 0 { -0.5 } else { 0.5 }) as i32;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i32` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/expm1f.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |             k = (INV_LN2 * x + (if sign { -0.5 } else { 0.5 })) as i32;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2.rs:174:17
[INFO] [stderr]     |
[INFO] [stderr] 174 |         tx[i] = z as i32 as f64;
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let n = f_n as i32;
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2_large.rs:280:18
[INFO] [stderr]     |
[INFO] [stderr] 280 |             fw = (x1p_24 * z) as i32 as f64;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2_large.rs:281:30
[INFO] [stderr]     |
[INFO] [stderr] 281 |             iq[i as usize] = (z - x1p24 * fw) as i32;
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2_large.rs:289:13
[INFO] [stderr]     |
[INFO] [stderr] 289 |         n = z as i32;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2_large.rs:382:18
[INFO] [stderr]     |
[INFO] [stderr] 382 |             fw = (x1p_24 * z) as i32 as f64;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2_large.rs:383:22
[INFO] [stderr]     |
[INFO] [stderr] 383 |             iq[jz] = (z - x1p24 * fw) as i32;
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2_large.rs:386:22
[INFO] [stderr]     |
[INFO] [stderr] 386 |             iq[jz] = fw as i32;
[INFO] [stderr]     |                      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2_large.rs:388:22
[INFO] [stderr]     |
[INFO] [stderr] 388 |             iq[jz] = z as i32;
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i32` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libm-0.1.2/src/math/rem_pio2f.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |         return (f_n as i32, x64 - f_n * PIO2_1 - f_n * PIO2_1T);
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 15 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `libm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b92cff5226688a0194575b9fc44168c8dc52b4cb273f1f9bc80dcbd277727c93"`
[INFO] running `"docker" "rm" "-f" "b92cff5226688a0194575b9fc44168c8dc52b4cb273f1f9bc80dcbd277727c93"`
[INFO] [stdout] b92cff5226688a0194575b9fc44168c8dc52b4cb273f1f9bc80dcbd277727c93