[INFO] cloning repository https://github.com/tatref/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/tatref/synacor-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftatref%2Fsynacor-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftatref%2Fsynacor-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 866052523af651e40e6a69c8c29f5f48e84b5ae2
[INFO] checking tatref/synacor-challenge against try#099af82bc034c1e4895c90e5407fafdd61976cdb for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftatref%2Fsynacor-challenge" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tatref/synacor-challenge
[INFO] finished tweaking git repo https://github.com/tatref/synacor-challenge
[INFO] tweaked toml for git repo https://github.com/tatref/synacor-challenge written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tatref/synacor-challenge on toolchain 099af82bc034c1e4895c90e5407fafdd61976cdb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tatref/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" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking tatref/synacor-challenge against try#099af82bc034c1e4895c90e5407fafdd61976cdb for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftatref%2Fsynacor-challenge" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tatref/synacor-challenge
[INFO] finished tweaking git repo https://github.com/tatref/synacor-challenge
[INFO] tweaked toml for git repo https://github.com/tatref/synacor-challenge written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tatref/synacor-challenge on toolchain 099af82bc034c1e4895c90e5407fafdd61976cdb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tatref/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" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v17.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36df86686a5ca0c98bd0f91434c32054e817065c1f92ace28a5c96f758828286
[INFO] running `Command { std: "docker" "start" "-a" "36df86686a5ca0c98bd0f91434c32054e817065c1f92ace28a5c96f758828286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36df86686a5ca0c98bd0f91434c32054e817065c1f92ace28a5c96f758828286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36df86686a5ca0c98bd0f91434c32054e817065c1f92ace28a5c96f758828286", kill_on_drop: false }`
[INFO] [stdout] 36df86686a5ca0c98bd0f91434c32054e817065c1f92ace28a5c96f758828286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33c45e26f90d453f4e2b6d9ada8754fd2538899f45d8b3593b8baa1b1856a8f0
[INFO] running `Command { std: "docker" "start" "-a" "33c45e26f90d453f4e2b6d9ada8754fd2538899f45d8b3593b8baa1b1856a8f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking rustix v1.0.8
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking clap_builder v4.5.44
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.105
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]     Checking rustyline v17.0.0
[INFO] [stderr]     Checking clap v4.5.45
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling serde_with_macros v3.14.0
[INFO] [stderr]     Checking serde_with v3.14.0
[INFO] [stderr]     Checking synacor-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `StopCondition`
[INFO] [stdout]  --> src/tests.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::emulator::{StopCondition, StopRet, Vm};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/tests.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     panic!();
[INFO] [stdout]     |     -------- any code following this expression is unreachable
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     assert_eq!(vm1, vm2);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/tests.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     panic!();
[INFO] [stdout]     |     -------- any code following this expression is unreachable
[INFO] [stdout] 182 |
[INFO] [stdout] 183 |     assert_eq!(vm1, vm2);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.44s
[INFO] running `Command { std: "docker" "inspect" "33c45e26f90d453f4e2b6d9ada8754fd2538899f45d8b3593b8baa1b1856a8f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c45e26f90d453f4e2b6d9ada8754fd2538899f45d8b3593b8baa1b1856a8f0", kill_on_drop: false }`
[INFO] [stdout] 33c45e26f90d453f4e2b6d9ada8754fd2538899f45d8b3593b8baa1b1856a8f0