[INFO] updating cached repository https://github.com/JakRowan/synacor-vm
[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] 977e0cccc26a3dc44219c4f7cbb7bf0d9d16ab1b
[INFO] testing JakRowan/synacor-vm against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakRowan%2Fsynacor-vm" "work/builds/worker-9/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JakRowan/synacor-vm 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/JakRowan/synacor-vm
[INFO] finished tweaking git repo https://github.com/JakRowan/synacor-vm
[INFO] tweaked toml for git repo https://github.com/JakRowan/synacor-vm written to work/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/JakRowan/synacor-vm 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/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] 908801fca674b64b620c23a455d21b0dbe224e34bfd119718a7af5942303fb1b
[INFO] running `"docker" "start" "-a" "908801fca674b64b620c23a455d21b0dbe224e34bfd119718a7af5942303fb1b"`
[INFO] [stderr]    Compiling serde-big-array v0.1.5
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling synacor-vm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/teleporter.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     for mut r8 in 0..(FIFTEEN_BIT_MAX + 1) as u16 {
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.83s
[INFO] running `"docker" "inspect" "908801fca674b64b620c23a455d21b0dbe224e34bfd119718a7af5942303fb1b"`
[INFO] running `"docker" "rm" "-f" "908801fca674b64b620c23a455d21b0dbe224e34bfd119718a7af5942303fb1b"`
[INFO] [stdout] 908801fca674b64b620c23a455d21b0dbe224e34bfd119718a7af5942303fb1b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/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] 8c77e13677605b3bb5cb975861f60fe57732695510612d11fc6f1cb64a1e9e84
[INFO] running `"docker" "start" "-a" "8c77e13677605b3bb5cb975861f60fe57732695510612d11fc6f1cb64a1e9e84"`
[INFO] [stderr]    Compiling synacor-vm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/teleporter.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     for mut r8 in 0..(FIFTEEN_BIT_MAX + 1) as u16 {
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "8c77e13677605b3bb5cb975861f60fe57732695510612d11fc6f1cb64a1e9e84"`
[INFO] running `"docker" "rm" "-f" "8c77e13677605b3bb5cb975861f60fe57732695510612d11fc6f1cb64a1e9e84"`
[INFO] [stdout] 8c77e13677605b3bb5cb975861f60fe57732695510612d11fc6f1cb64a1e9e84
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/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] 1bbf21b266cbfbba0e53e5fca9c4825f22c202152ceaedf67b144d26e92da183
[INFO] running `"docker" "start" "-a" "1bbf21b266cbfbba0e53e5fca9c4825f22c202152ceaedf67b144d26e92da183"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/synacor_vm-5149defbb6d543c1
[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] [stderr]      Running /opt/rustwide/target/debug/deps/synacor_vm-fa5fe3a39daeb8de
[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] [stderr]    Doc-tests synacor-vm
[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" "1bbf21b266cbfbba0e53e5fca9c4825f22c202152ceaedf67b144d26e92da183"`
[INFO] running `"docker" "rm" "-f" "1bbf21b266cbfbba0e53e5fca9c4825f22c202152ceaedf67b144d26e92da183"`
[INFO] [stdout] 1bbf21b266cbfbba0e53e5fca9c4825f22c202152ceaedf67b144d26e92da183