[INFO] cloning repository https://github.com/jasondew/synacor-challenge [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jasondew/synacor-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasondew%2Fsynacor-challenge", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasondew%2Fsynacor-challenge'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bda8780ea396bdb6719acb10de97a30a3e22c8f2 [INFO] testing jasondew/synacor-challenge against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasondew%2Fsynacor-challenge" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jasondew/synacor-challenge on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jasondew/synacor-challenge [INFO] finished tweaking git repo https://github.com/jasondew/synacor-challenge [INFO] tweaked toml for git repo https://github.com/jasondew/synacor-challenge written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/jasondew/synacor-challenge already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 56ddbd64a60fe45db24e8d7e4641ac8e61a9f53397ff37fc08b907a167c23dcf [INFO] running `Command { std: "docker" "start" "-a" "56ddbd64a60fe45db24e8d7e4641ac8e61a9f53397ff37fc08b907a167c23dcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56ddbd64a60fe45db24e8d7e4641ac8e61a9f53397ff37fc08b907a167c23dcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56ddbd64a60fe45db24e8d7e4641ac8e61a9f53397ff37fc08b907a167c23dcf", kill_on_drop: false }` [INFO] [stdout] 56ddbd64a60fe45db24e8d7e4641ac8e61a9f53397ff37fc08b907a167c23dcf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a69d2957e012002c188f30fec7d3896c90dc35d60949a68af95b1673bee168d6 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a69d2957e012002c188f30fec7d3896c90dc35d60949a68af95b1673bee168d6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling synacor_challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/disassembler.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 25 | / loop { [INFO] [stdout] 26 | | print!("{}: ", vm.get_ip()); [INFO] [stdout] 27 | | match vm.get_next_operation() { [INFO] [stdout] 28 | | Ok(operation) => { [INFO] [stdout] ... | [INFO] [stdout] 82 | | } [INFO] [stdout] 83 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 84 | [INFO] [stdout] 85 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.36s [INFO] running `Command { std: "docker" "inspect" "a69d2957e012002c188f30fec7d3896c90dc35d60949a68af95b1673bee168d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a69d2957e012002c188f30fec7d3896c90dc35d60949a68af95b1673bee168d6", kill_on_drop: false }` [INFO] [stdout] a69d2957e012002c188f30fec7d3896c90dc35d60949a68af95b1673bee168d6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dddd7b3dd7a675d46f5598b475c43ab46d0e97e42e9d14574c7984b716438cb9 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "dddd7b3dd7a675d46f5598b475c43ab46d0e97e42e9d14574c7984b716438cb9", kill_on_drop: false }` [INFO] [stderr] Compiling synacor_challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/disassembler.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 25 | / loop { [INFO] [stdout] 26 | | print!("{}: ", vm.get_ip()); [INFO] [stdout] 27 | | match vm.get_next_operation() { [INFO] [stdout] 28 | | Ok(operation) => { [INFO] [stdout] ... | [INFO] [stdout] 82 | | } [INFO] [stdout] 83 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 84 | [INFO] [stdout] 85 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.92s [INFO] running `Command { std: "docker" "inspect" "dddd7b3dd7a675d46f5598b475c43ab46d0e97e42e9d14574c7984b716438cb9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dddd7b3dd7a675d46f5598b475c43ab46d0e97e42e9d14574c7984b716438cb9", kill_on_drop: false }` [INFO] [stdout] dddd7b3dd7a675d46f5598b475c43ab46d0e97e42e9d14574c7984b716438cb9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 72cd0b3a93ea4a03a1461dcb920414dd9d77c94f0263383529f59b14b1d2bcf4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "72cd0b3a93ea4a03a1461dcb920414dd9d77c94f0263383529f59b14b1d2bcf4", kill_on_drop: false }` [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/bin/disassembler.rs:85:5 [INFO] [stderr] | [INFO] [stderr] 25 | / loop { [INFO] [stderr] 26 | | print!("{}: ", vm.get_ip()); [INFO] [stderr] 27 | | match vm.get_next_operation() { [INFO] [stderr] 28 | | Ok(operation) => { [INFO] [stderr] ... | [INFO] [stderr] 82 | | } [INFO] [stderr] 83 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 84 | [INFO] [stderr] 85 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/synacor_challenge-e6fe3afe67563da9) [INFO] [stdout] running 4 tests [INFO] [stdout] test vm::tests::state_test ... ok [INFO] [stdout] test vm::tests::not_test ... ok [INFO] [stdout] test vm::tests::add_and_output_test ... ok [INFO] [stdout] test vm::tests::jump_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/ackermann-98314878a713968b) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/disassembler-a1c756cc88f8d605) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/interactive-ecef02cb8280a8ed) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/random_walk-30e14c84b36ac85d) [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; finished in 0.00s [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests synacor_challenge [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "72cd0b3a93ea4a03a1461dcb920414dd9d77c94f0263383529f59b14b1d2bcf4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72cd0b3a93ea4a03a1461dcb920414dd9d77c94f0263383529f59b14b1d2bcf4", kill_on_drop: false }` [INFO] [stdout] 72cd0b3a93ea4a03a1461dcb920414dd9d77c94f0263383529f59b14b1d2bcf4