[INFO] cloning repository https://github.com/89netraM/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/89netraM/synacor_challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F89netraM%2Fsynacor_challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F89netraM%2Fsynacor_challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74cb5efe08a4094fbc76f05bfe9fb294135ed676
[INFO] testing 89netraM/synacor_challenge against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F89netraM%2Fsynacor_challenge" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/89netraM/synacor_challenge on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/89netraM/synacor_challenge
[INFO] finished tweaking git repo https://github.com/89netraM/synacor_challenge
[INFO] tweaked toml for git repo https://github.com/89netraM/synacor_challenge written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/89netraM/synacor_challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 86e4b78dca1810218004ed2f145f34820a0ce6e809242be049a78e9e5fa51233
[INFO] running `Command { std: "docker" "start" "-a" "86e4b78dca1810218004ed2f145f34820a0ce6e809242be049a78e9e5fa51233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86e4b78dca1810218004ed2f145f34820a0ce6e809242be049a78e9e5fa51233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e4b78dca1810218004ed2f145f34820a0ce6e809242be049a78e9e5fa51233", kill_on_drop: false }`
[INFO] [stdout] 86e4b78dca1810218004ed2f145f34820a0ce6e809242be049a78e9e5fa51233
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", 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] 7241187d22a092d687b5934162c26a7dd9a62d1adf006624cb97b760ab6c5e1d
[INFO] running `Command { std: "docker" "start" "-a" "7241187d22a092d687b5934162c26a7dd9a62d1adf006624cb97b760ab6c5e1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling ctrlc v3.1.8
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling synacor_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `HeaderCollection`
[INFO] [stdout]  --> src/runtime/debugger/header_collection.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct HeaderCollection(HashMap<String, String>);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/runtime/debugger/header_collection.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new() -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/runtime/debugger/header_collection.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn add(&mut self, line: &str) -> Result<(), String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/runtime/debugger/header_collection.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get<T: FromStr>(&self, name: &str) -> Option<Result<T, <T as FromStr>::Err>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]   --> src/runtime/debugger/header_collection.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.73s
[INFO] running `Command { std: "docker" "inspect" "7241187d22a092d687b5934162c26a7dd9a62d1adf006624cb97b760ab6c5e1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7241187d22a092d687b5934162c26a7dd9a62d1adf006624cb97b760ab6c5e1d", kill_on_drop: false }`
[INFO] [stdout] 7241187d22a092d687b5934162c26a7dd9a62d1adf006624cb97b760ab6c5e1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", 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] e1a4e1c29dc56347c5eea03dd7f063ffded4256ace1ab32130f5c9db008e75b3
[INFO] running `Command { std: "docker" "start" "-a" "e1a4e1c29dc56347c5eea03dd7f063ffded4256ace1ab32130f5c9db008e75b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling synacor_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "e1a4e1c29dc56347c5eea03dd7f063ffded4256ace1ab32130f5c9db008e75b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a4e1c29dc56347c5eea03dd7f063ffded4256ace1ab32130f5c9db008e75b3", kill_on_drop: false }`
[INFO] [stdout] e1a4e1c29dc56347c5eea03dd7f063ffded4256ace1ab32130f5c9db008e75b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] 4bea3272a8fc6b58f4d95471d78d394ba1ba9fb6ebff14d9c60c8410cfcad92d
[INFO] running `Command { std: "docker" "start" "-a" "4bea3272a8fc6b58f4d95471d78d394ba1ba9fb6ebff14d9c60c8410cfcad92d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/synacor_challenge-82f6ce47144e6153)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test runtime::data::tests::get_number ... ok
[INFO] [stdout] test runtime::data::tests::reading_memory ... ok
[INFO] [stdout] test runtime::data::tests::update_invalid ... ok
[INFO] [stdout] test runtime::data::tests::update_non_register ... ok
[INFO] [stdout] test runtime::data::tests::update_register ... ok
[INFO] [stdout] test runtime::data::tests::writing_and_reading_memory ... ok
[INFO] [stdout] test runtime::data::tests::writing_invalid_memory ... ok
[INFO] [stdout] test runtime::debugger::header_collection::tests::add_twice ... ok
[INFO] [stdout] test runtime::debugger::header_collection::tests::add_and_get ... ok
[INFO] [stdout] test runtime::debugger::header_collection::tests::clear ... ok
[INFO] [stdout] test runtime::data::tests::get_register ... ok
[INFO] [stdout] test runtime::debugger::header_collection::tests::add_without_value ... ok
[INFO] [stdout] test runtime::vm::tests::final_step ... ok
[INFO] [stdout] test runtime::vm::tests::invalid_step ... ok
[INFO] [stdout] test runtime::vm::tests::init_pointer ... ok
[INFO] [stdout] test runtime::vm::tests::one_step ... ok
[INFO] [stdout] test runtime::vm::tests::run_to_completion ... ok
[INFO] [stdout] test runtime::data::tests::get_invalid ... ok
[INFO] [stdout] test runtime::data::tests::length_memory ... ok
[INFO] [stdout] test runtime::data::tests::only_pop ... ok
[INFO] [stdout] test runtime::data::tests::push_and_pop ... ok
[INFO] [stdout] test runtime::debugger::header_collection::tests::add_without_name ... ok
[INFO] [stdout] test runtime::data::tests::reading_invalid_memory ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4bea3272a8fc6b58f4d95471d78d394ba1ba9fb6ebff14d9c60c8410cfcad92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bea3272a8fc6b58f4d95471d78d394ba1ba9fb6ebff14d9c60c8410cfcad92d", kill_on_drop: false }`
[INFO] [stdout] 4bea3272a8fc6b58f4d95471d78d394ba1ba9fb6ebff14d9c60c8410cfcad92d