[INFO] updating cached repository https://github.com/PurpleMyst/synacor-vm
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] e2871d55d13cd8cfc08ef2f3146a41fa6f4a5350
[INFO] checking PurpleMyst/synacor-vm against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Fsynacor-vm" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PurpleMyst/synacor-vm on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/PurpleMyst/synacor-vm
[INFO] finished tweaking git repo https://github.com/PurpleMyst/synacor-vm
[INFO] tweaked toml for git repo https://github.com/PurpleMyst/synacor-vm written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/PurpleMyst/synacor-vm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3c5952d324c8da4311457b00d374a484a338ce0dda865e9687283c03c517f4cd
[INFO] running `"docker" "start" "-a" "3c5952d324c8da4311457b00d374a484a338ce0dda865e9687283c03c517f4cd"`
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking colored v1.6.0
[INFO] [stderr]     Checking synacor-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `exact_chunks` found for struct `std::vec::Vec<u8>` in the current scope
[INFO] [stderr]    --> src/vm.rs:156:25
[INFO] [stderr]     |
[INFO] [stderr] 156 |         fs::read(path)?.exact_chunks(2).for_each(|chunk| {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ method not found in `std::vec::Vec<u8>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `exact_chunks` found for struct `std::vec::Vec<u8>` in the current scope
[INFO] [stderr]    --> src/vm.rs:156:25
[INFO] [stderr]     |
[INFO] [stderr] 156 |         fs::read(path)?.exact_chunks(2).for_each(|chunk| {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ method not found in `std::vec::Vec<u8>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `synacor-vm`.
[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
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `synacor-vm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3c5952d324c8da4311457b00d374a484a338ce0dda865e9687283c03c517f4cd"`
[INFO] running `"docker" "rm" "-f" "3c5952d324c8da4311457b00d374a484a338ce0dda865e9687283c03c517f4cd"`
[INFO] [stdout] 3c5952d324c8da4311457b00d374a484a338ce0dda865e9687283c03c517f4cd