[INFO] updating cached repository kirjavascript/duplex
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kirjavascript/duplex
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kirjavascript/duplex" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/kirjavascript/duplex"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/kirjavascript/duplex'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kirjavascript/duplex" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/kirjavascript/duplex"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/kirjavascript/duplex'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4ff204f7567bf071b46cece9f502f839e4e3c23f
[INFO] sha for GitHub repo kirjavascript/duplex: 4ff204f7567bf071b46cece9f502f839e4e3c23f
[INFO] validating manifest of kirjavascript/duplex on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kirjavascript/duplex on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kirjavascript/duplex
[INFO] finished frobbing kirjavascript/duplex
[INFO] frobbed toml for kirjavascript/duplex written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/kirjavascript/duplex/Cargo.toml
[INFO] started frobbing kirjavascript/duplex
[INFO] finished frobbing kirjavascript/duplex
[INFO] frobbed toml for kirjavascript/duplex written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/kirjavascript/duplex/Cargo.toml
[INFO] crate kirjavascript/duplex already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kirjavascript/duplex against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/kirjavascript/duplex:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7ead99f6937f27666ab07cd235c7f30c2f3d3750a6f2af50458489cb7a74e5b5
[INFO] running `"docker" "start" "-a" "7ead99f6937f27666ab07cd235c7f30c2f3d3750a6f2af50458489cb7a74e5b5"`
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking serde v1.0.82
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking duplex v0.1.0 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 17.83s
[INFO] running `"docker" "inspect" "7ead99f6937f27666ab07cd235c7f30c2f3d3750a6f2af50458489cb7a74e5b5"`
[INFO] running `"docker" "rm" "-f" "7ead99f6937f27666ab07cd235c7f30c2f3d3750a6f2af50458489cb7a74e5b5"`
[INFO] [stdout] 7ead99f6937f27666ab07cd235c7f30c2f3d3750a6f2af50458489cb7a74e5b5