[INFO] fetching crate rust_study0 0.1.1...
[INFO] testing rust_study0-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rust_study0 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rust_study0 0.1.1 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 crates.io crate rust_study0 0.1.1
[INFO] finished tweaking crates.io crate rust_study0 0.1.1
[INFO] tweaked toml for crates.io crate rust_study0 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rust_study0 0.1.1 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] 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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b6c13800f77bb6118e4949ebdccbd494a6076c98267492b1b16cbec9621de6a
[INFO] running `Command { std: "docker" "start" "-a" "7b6c13800f77bb6118e4949ebdccbd494a6076c98267492b1b16cbec9621de6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b6c13800f77bb6118e4949ebdccbd494a6076c98267492b1b16cbec9621de6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b6c13800f77bb6118e4949ebdccbd494a6076c98267492b1b16cbec9621de6a", kill_on_drop: false }`
[INFO] [stdout] 7b6c13800f77bb6118e4949ebdccbd494a6076c98267492b1b16cbec9621de6a
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d16668806b434e992657ec13735b2a6b4cd714703fd59cf670ad1cf916ca9533
[INFO] running `Command { std: "docker" "start" "-a" "d16668806b434e992657ec13735b2a6b4cd714703fd59cf670ad1cf916ca9533", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rust_study0 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `addr`
[INFO] [stdout]    --> src/lib.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |         addr: String,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Device` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:350:14
[INFO] [stdout]     |
[INFO] [stdout] 350 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `Command { std: "docker" "inspect" "d16668806b434e992657ec13735b2a6b4cd714703fd59cf670ad1cf916ca9533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d16668806b434e992657ec13735b2a6b4cd714703fd59cf670ad1cf916ca9533", kill_on_drop: false }`
[INFO] [stdout] d16668806b434e992657ec13735b2a6b4cd714703fd59cf670ad1cf916ca9533
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 044c0c0f0629fc6386a934305ec5d93b5c326504a68ce4f583e8f5c6bde50813
[INFO] running `Command { std: "docker" "start" "-a" "044c0c0f0629fc6386a934305ec5d93b5c326504a68ce4f583e8f5c6bde50813", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_study0 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `addr`
[INFO] [stdout]    --> src/lib.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |         addr: String,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Device` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:350:14
[INFO] [stdout]     |
[INFO] [stdout] 350 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `addr`
[INFO] [stdout]    --> src/lib.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |         addr: String,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Device` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/lib.rs:350:14
[INFO] [stdout]     |
[INFO] [stdout] 350 |     #[derive(Debug)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "044c0c0f0629fc6386a934305ec5d93b5c326504a68ce4f583e8f5c6bde50813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "044c0c0f0629fc6386a934305ec5d93b5c326504a68ce4f583e8f5c6bde50813", kill_on_drop: false }`
[INFO] [stdout] 044c0c0f0629fc6386a934305ec5d93b5c326504a68ce4f583e8f5c6bde50813
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0dfe406645d7f122b1bcb000784085d9fc984724ad3c9cb03a015d8f5f52bc6a
[INFO] running `Command { std: "docker" "start" "-a" "0dfe406645d7f122b1bcb000784085d9fc984724ad3c9cb03a015d8f5f52bc6a", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `addr`
[INFO] [stderr]    --> src/lib.rs:352:9
[INFO] [stderr]     |
[INFO] [stderr] 352 |         addr: String,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Device` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/lib.rs:350:14
[INFO] [stderr]     |
[INFO] [stderr] 350 |     #[derive(Debug)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_study0` (lib) generated 1 warning
[INFO] [stderr] warning: `rust_study0` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_study0-d28ca80bbc1fbbe9)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::one_result ... ok
[INFO] [stdout] test tests::multi_results_with_iterator ... ok
[INFO] [stdout] test tests::multi_results ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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/rust_study0-6554224498dbe067)
[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 rust_study0
[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" "0dfe406645d7f122b1bcb000784085d9fc984724ad3c9cb03a015d8f5f52bc6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dfe406645d7f122b1bcb000784085d9fc984724ad3c9cb03a015d8f5f52bc6a", kill_on_drop: false }`
[INFO] [stdout] 0dfe406645d7f122b1bcb000784085d9fc984724ad3c9cb03a015d8f5f52bc6a