[INFO] cloning repository https://github.com/kirjavascript/duplex
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kirjavascript/duplex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirjavascript%2Fduplex"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirjavascript%2Fduplex'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4ff204f7567bf071b46cece9f502f839e4e3c23f
[INFO] checking kirjavascript/duplex against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirjavascript%2Fduplex" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kirjavascript/duplex 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/kirjavascript/duplex
[INFO] finished tweaking git repo https://github.com/kirjavascript/duplex
[INFO] tweaked toml for git repo https://github.com/kirjavascript/duplex written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kirjavascript/duplex 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 2f3cbb831187819ff567c9af04ca5935e2f513d74a5cc616a08b6f3dce53aff5
[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" "2f3cbb831187819ff567c9af04ca5935e2f513d74a5cc616a08b6f3dce53aff5"`
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking serde v1.0.82
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking duplex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/web/interop.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |     use std::sync::{ONCE_INIT, Once};
[INFO] [stderr]     |                     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/web/interop.rs:137:29
[INFO] [stderr]     |
[INFO] [stderr] 137 |     static SET_HOOK: Once = ONCE_INIT;
[INFO] [stderr]     |                             ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/web/interop.rs:136:21
[INFO] [stderr]     |
[INFO] [stderr] 136 |     use std::sync::{ONCE_INIT, Once};
[INFO] [stderr]     |                     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/web/interop.rs:137:29
[INFO] [stderr]     |
[INFO] [stderr] 137 |     static SET_HOOK: Once = ONCE_INIT;
[INFO] [stderr]     |                             ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]    --> src/web/interop.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         ((math_random() * end) + start) as usize
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]    --> src/web/interop.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         ((math_random() * end) + start) as usize
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `duplex`.
[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: aborting due to previous error; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `duplex`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2f3cbb831187819ff567c9af04ca5935e2f513d74a5cc616a08b6f3dce53aff5"`
[INFO] running `"docker" "rm" "-f" "2f3cbb831187819ff567c9af04ca5935e2f513d74a5cc616a08b6f3dce53aff5"`
[INFO] [stdout] 2f3cbb831187819ff567c9af04ca5935e2f513d74a5cc616a08b6f3dce53aff5