[INFO] updating cached repository https://github.com/jawline/WebAssembly-Playground
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0894aad6884fd67d973005089c88437308eb9b04
[INFO] testing jawline/WebAssembly-Playground against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2FWebAssembly-Playground" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jawline/WebAssembly-Playground on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jawline/WebAssembly-Playground
[INFO] finished tweaking git repo https://github.com/jawline/WebAssembly-Playground
[INFO] tweaked toml for git repo https://github.com/jawline/WebAssembly-Playground written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jawline/WebAssembly-Playground already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 3679de1e0f83ed19be584f8816d2c08b1136dd77eeacad4359f4467b019cfb07
[INFO] running `"docker" "start" "-a" "3679de1e0f83ed19be584f8816d2c08b1136dd77eeacad4359f4467b019cfb07"`
[INFO] [stderr]    Compiling weblang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]  --> src/warn.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | / macro_rules! warn(
[INFO] [stderr] 2 | |     ($($arg:tt)*) => { {
[INFO] [stderr] 3 | |         let r = writeln!(&mut ::std::io::stderr(), $($arg)*);
[INFO] [stderr] 4 | |         r.expect("failed printing to stderr");
[INFO] [stderr] 5 | |     } }
[INFO] [stderr] 6 | | );
[INFO] [stderr]   | |__^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `"docker" "inspect" "3679de1e0f83ed19be584f8816d2c08b1136dd77eeacad4359f4467b019cfb07"`
[INFO] running `"docker" "rm" "-f" "3679de1e0f83ed19be584f8816d2c08b1136dd77eeacad4359f4467b019cfb07"`
[INFO] [stdout] 3679de1e0f83ed19be584f8816d2c08b1136dd77eeacad4359f4467b019cfb07
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3908cc1e0e67e086030d5e37366df591abfa8bf372543e7ba35f81c70b5969fe
[INFO] running `"docker" "start" "-a" "3908cc1e0e67e086030d5e37366df591abfa8bf372543e7ba35f81c70b5969fe"`
[INFO] [stderr]    Compiling weblang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]  --> src/warn.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | / macro_rules! warn(
[INFO] [stderr] 2 | |     ($($arg:tt)*) => { {
[INFO] [stderr] 3 | |         let r = writeln!(&mut ::std::io::stderr(), $($arg)*);
[INFO] [stderr] 4 | |         r.expect("failed printing to stderr");
[INFO] [stderr] 5 | |     } }
[INFO] [stderr] 6 | | );
[INFO] [stderr]   | |__^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "3908cc1e0e67e086030d5e37366df591abfa8bf372543e7ba35f81c70b5969fe"`
[INFO] running `"docker" "rm" "-f" "3908cc1e0e67e086030d5e37366df591abfa8bf372543e7ba35f81c70b5969fe"`
[INFO] [stdout] 3908cc1e0e67e086030d5e37366df591abfa8bf372543e7ba35f81c70b5969fe
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 1278896d7f65c99a69a4b4e500b7dacf3880a7e693997f8d726953885c94f2cb
[INFO] running `"docker" "start" "-a" "1278896d7f65c99a69a4b4e500b7dacf3880a7e693997f8d726953885c94f2cb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/weblang-15aa35103b9505f0
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1278896d7f65c99a69a4b4e500b7dacf3880a7e693997f8d726953885c94f2cb"`
[INFO] running `"docker" "rm" "-f" "1278896d7f65c99a69a4b4e500b7dacf3880a7e693997f8d726953885c94f2cb"`
[INFO] [stdout] 1278896d7f65c99a69a4b4e500b7dacf3880a7e693997f8d726953885c94f2cb