[INFO] fetching crate rust_tutorials 0.1.0...
[INFO] testing rust_tutorials-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rust_tutorials 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rust_tutorials 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_tutorials 0.1.0
[INFO] finished tweaking crates.io crate rust_tutorials 0.1.0
[INFO] tweaked toml for crates.io crate rust_tutorials 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rust_tutorials 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd9a84df6bdfb5ae6c14c974d6af758eb399d77c343953bde9cfd974e6233195
[INFO] running `Command { std: "docker" "start" "-a" "fd9a84df6bdfb5ae6c14c974d6af758eb399d77c343953bde9cfd974e6233195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd9a84df6bdfb5ae6c14c974d6af758eb399d77c343953bde9cfd974e6233195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd9a84df6bdfb5ae6c14c974d6af758eb399d77c343953bde9cfd974e6233195", kill_on_drop: false }`
[INFO] [stdout] fd9a84df6bdfb5ae6c14c974d6af758eb399d77c343953bde9cfd974e6233195
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ddbd3154ecf37f2e24888d845cc362ebf9aeed7f23e117a7625ff68f35b911b
[INFO] running `Command { std: "docker" "start" "-a" "0ddbd3154ecf37f2e24888d845cc362ebf9aeed7f23e117a7625ff68f35b911b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_tutorials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "0ddbd3154ecf37f2e24888d845cc362ebf9aeed7f23e117a7625ff68f35b911b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ddbd3154ecf37f2e24888d845cc362ebf9aeed7f23e117a7625ff68f35b911b", kill_on_drop: false }`
[INFO] [stdout] 0ddbd3154ecf37f2e24888d845cc362ebf9aeed7f23e117a7625ff68f35b911b
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69431ac595ebe416f76caddd62ebf1b14a0d4008d115ab54326fc6008b21371d
[INFO] running `Command { std: "docker" "start" "-a" "69431ac595ebe416f76caddd62ebf1b14a0d4008d115ab54326fc6008b21371d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_tutorials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "69431ac595ebe416f76caddd62ebf1b14a0d4008d115ab54326fc6008b21371d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69431ac595ebe416f76caddd62ebf1b14a0d4008d115ab54326fc6008b21371d", kill_on_drop: false }`
[INFO] [stdout] 69431ac595ebe416f76caddd62ebf1b14a0d4008d115ab54326fc6008b21371d
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92112fd84ecfa99a5b99b1c85ab94f539039ca3f9582f243833ef0690bea4a8d
[INFO] running `Command { std: "docker" "start" "-a" "92112fd84ecfa99a5b99b1c85ab94f539039ca3f9582f243833ef0690bea4a8d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_tutorials-d81ea594338977e6)
[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" "92112fd84ecfa99a5b99b1c85ab94f539039ca3f9582f243833ef0690bea4a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92112fd84ecfa99a5b99b1c85ab94f539039ca3f9582f243833ef0690bea4a8d", kill_on_drop: false }`
[INFO] [stdout] 92112fd84ecfa99a5b99b1c85ab94f539039ca3f9582f243833ef0690bea4a8d