[INFO] cloning repository https://github.com/mohanrajendran/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/mohanrajendran/synacor-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohanrajendran%2Fsynacor-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohanrajendran%2Fsynacor-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02cdd7f2ac574e7d034483440ec1537014d7f04e
[INFO] testing mohanrajendran/synacor-challenge against 1.84.0 for beta-1.85-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohanrajendran%2Fsynacor-challenge" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mohanrajendran/synacor-challenge on toolchain 1.84.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.84.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mohanrajendran/synacor-challenge
[INFO] finished tweaking git repo https://github.com/mohanrajendran/synacor-challenge
[INFO] tweaked toml for git repo https://github.com/mohanrajendran/synacor-challenge written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mohanrajendran/synacor-challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.84.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0901e9ee093b70a5fbe2d7dfe3ed1ae076a9cae170661a8960632792f9e53ae
[INFO] running `Command { std: "docker" "start" "-a" "f0901e9ee093b70a5fbe2d7dfe3ed1ae076a9cae170661a8960632792f9e53ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0901e9ee093b70a5fbe2d7dfe3ed1ae076a9cae170661a8960632792f9e53ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0901e9ee093b70a5fbe2d7dfe3ed1ae076a9cae170661a8960632792f9e53ae", kill_on_drop: false }`
[INFO] [stdout] f0901e9ee093b70a5fbe2d7dfe3ed1ae076a9cae170661a8960632792f9e53ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e17eaa4123b9d61e812888dc80dc6475457f5e96394215ec574fc981d2fff49b
[INFO] running `Command { std: "docker" "start" "-a" "e17eaa4123b9d61e812888dc80dc6475457f5e96394215ec574fc981d2fff49b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling synacor-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut f = try!(File::open(file_name.to_string()));
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let size = try!(f.read_to_end(&mut buffer))/2;
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |         register[(value-32768)]
[INFO] [stdout]    |                  ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -         register[(value-32768)]
[INFO] [stdout] 28 +         register[value-32768]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "e17eaa4123b9d61e812888dc80dc6475457f5e96394215ec574fc981d2fff49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e17eaa4123b9d61e812888dc80dc6475457f5e96394215ec574fc981d2fff49b", kill_on_drop: false }`
[INFO] [stdout] e17eaa4123b9d61e812888dc80dc6475457f5e96394215ec574fc981d2fff49b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a9e844c045a08abd7e8a8a6f95ed53361460771083ea2414b377e4bff868b39
[INFO] running `Command { std: "docker" "start" "-a" "7a9e844c045a08abd7e8a8a6f95ed53361460771083ea2414b377e4bff868b39", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling synacor-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut f = try!(File::open(file_name.to_string()));
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let size = try!(f.read_to_end(&mut buffer))/2;
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |         register[(value-32768)]
[INFO] [stdout]    |                  ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -         register[(value-32768)]
[INFO] [stdout] 28 +         register[value-32768]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "7a9e844c045a08abd7e8a8a6f95ed53361460771083ea2414b377e4bff868b39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a9e844c045a08abd7e8a8a6f95ed53361460771083ea2414b377e4bff868b39", kill_on_drop: false }`
[INFO] [stdout] 7a9e844c045a08abd7e8a8a6f95ed53361460771083ea2414b377e4bff868b39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9cc5a03084b0fe098360504edd7aee807cd68e3bf0ba8decf6d3955c9884f23e
[INFO] running `Command { std: "docker" "start" "-a" "9cc5a03084b0fe098360504edd7aee807cd68e3bf0ba8decf6d3955c9884f23e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]  --> src/main.rs:7:17
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut f = try!(File::open(file_name.to_string()));
[INFO] [stderr]   |                 ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let size = try!(f.read_to_end(&mut buffer))/2;
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]   --> src/main.rs:28:18
[INFO] [stderr]    |
[INFO] [stderr] 28 |         register[(value-32768)]
[INFO] [stderr]    |                  ^           ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 28 -         register[(value-32768)]
[INFO] [stderr] 28 +         register[value-32768]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `synacor-vm` (bin "synacor-vm" test) generated 3 warnings (run `cargo fix --bin "synacor-vm" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/synacor_vm-d2d2e8c470d7c132)
[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" "9cc5a03084b0fe098360504edd7aee807cd68e3bf0ba8decf6d3955c9884f23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cc5a03084b0fe098360504edd7aee807cd68e3bf0ba8decf6d3955c9884f23e", kill_on_drop: false }`
[INFO] [stdout] 9cc5a03084b0fe098360504edd7aee807cd68e3bf0ba8decf6d3955c9884f23e