[INFO] fetching crate dockyard 0.1.1...
[INFO] checking dockyard-0.1.1 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate dockyard 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dockyard 0.1.1 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dockyard 0.1.1
[INFO] finished tweaking crates.io crate dockyard 0.1.1
[INFO] tweaked toml for crates.io crate dockyard 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate dockyard 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bd6929f9d1f5c82623c3a4fb8a26d5f42d0ac0cc3a90620d3ec91a990298061
[INFO] running `Command { std: "docker" "start" "-a" "6bd6929f9d1f5c82623c3a4fb8a26d5f42d0ac0cc3a90620d3ec91a990298061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bd6929f9d1f5c82623c3a4fb8a26d5f42d0ac0cc3a90620d3ec91a990298061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd6929f9d1f5c82623c3a4fb8a26d5f42d0ac0cc3a90620d3ec91a990298061", kill_on_drop: false }`
[INFO] [stdout] 6bd6929f9d1f5c82623c3a4fb8a26d5f42d0ac0cc3a90620d3ec91a990298061
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] caade45fb77b07aa06205e20364cc387c0897c671ea98c290fb2939b0c628ef2
[INFO] running `Command { std: "docker" "start" "-a" "caade45fb77b07aa06205e20364cc387c0897c671ea98c290fb2939b0c628ef2", kill_on_drop: false }`
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[INFO] [stderr]    Compiling dockyard v0.1.1 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/backup.rs:359:13
[INFO] [stdout]     |
[INFO] [stdout] 359 | /             &docker.create_volume(CreateVolumeOptions {
[INFO] [stdout] 360 | |                 name: volume_name.as_str(),
[INFO] [stdout] 361 | |                 driver: &"local".to_string(),
[INFO] [stdout] 362 | |                 driver_opts: Default::default(),
[INFO] [stdout] 363 | |                 labels: Default::default(),
[INFO] [stdout] 364 | |             }).await.unwrap();
[INFO] [stdout]     | |_____________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 359 |             let _ = &docker.create_volume(CreateVolumeOptions {
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/restore.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 178 | /             &docker.create_volume(CreateVolumeOptions {
[INFO] [stdout] 179 | |                 name: volume_name.clone(),
[INFO] [stdout] 180 | |                 driver: "local".to_string(),
[INFO] [stdout] 181 | |                 driver_opts: Default::default(),
[INFO] [stdout] 182 | |                 labels: Default::default(),
[INFO] [stdout] 183 | |             });
[INFO] [stdout]     | |______________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let _ = &docker.create_volume(CreateVolumeOptions {
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/backup_and_restore_test.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 | /         &client.create_volume(CreateVolumeOptions {
[INFO] [stdout] 48 | |             name: volume_name.clone(),
[INFO] [stdout] 49 | |             driver: "local".to_string(),
[INFO] [stdout] 50 | |             driver_opts: Default::default(),
[INFO] [stdout] 51 | |             labels: Default::default(),
[INFO] [stdout] 52 | |         }).await.unwrap();
[INFO] [stdout]    | |_________________________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _ = &client.create_volume(CreateVolumeOptions {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/backup_and_restore_test.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | /         &client.create_volume(CreateVolumeOptions {
[INFO] [stdout] 55 | |             name: backup_name.clone(),
[INFO] [stdout] 56 | |             driver: "local".to_string(),
[INFO] [stdout] 57 | |             driver_opts: Default::default(),
[INFO] [stdout] 58 | |             labels: Default::default(),
[INFO] [stdout] 59 | |         }).await.unwrap();
[INFO] [stdout]    | |_________________________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let _ = &client.create_volume(CreateVolumeOptions {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:79:9
[INFO] [stdout]     |
[INFO] [stdout] 79  | /         &client.create_container(
[INFO] [stdout] 80  | |             Some(CreateContainerOptions { name: container_name.clone() }),
[INFO] [stdout] 81  | |             Config {
[INFO] [stdout] 82  | |                 env: Some(vec!["VAR1=a", "VAR2=b"]),
[INFO] [stdout] ...   |
[INFO] [stdout] 105 | |             },
[INFO] [stdout] 106 | |         ).await.unwrap();
[INFO] [stdout]     | |________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 79  |         let _ = &client.create_container(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         &client.start_container(&container_name, None::<StartContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let _ = &client.start_container(&container_name, None::<StartContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         &client.kill_container(&container_name, None::<KillContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let _ = &client.kill_container(&container_name, None::<KillContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         &client.remove_container(&container_name, None::<RemoveContainerOptions>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = &client.remove_container(&container_name, None::<RemoveContainerOptions>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         &client.remove_volume(&volume_name, None::<RemoveVolumeOptions>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let _ = &client.remove_volume(&volume_name, None::<RemoveVolumeOptions>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         &client.start_container(&restored_name, None::<StartContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let _ = &client.start_container(&restored_name, None::<StartContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         &client.kill_container(&restored_name, None::<KillContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let _ = &client.kill_container(&restored_name, None::<KillContainerOptions<String>>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         &client.remove_container(&restored_name, None::<RemoveContainerOptions>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let _ = &client.remove_container(&restored_name, None::<RemoveContainerOptions>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         &client.remove_volume(&backup_name, None::<RemoveVolumeOptions>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let _ = &client.remove_volume(&backup_name, None::<RemoveVolumeOptions>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> tests/backup_and_restore_test.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         &client.remove_volume(&volume_name, None::<RemoveVolumeOptions>).await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 145 |         let _ = &client.remove_volume(&volume_name, None::<RemoveVolumeOptions>).await.unwrap();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "caade45fb77b07aa06205e20364cc387c0897c671ea98c290fb2939b0c628ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caade45fb77b07aa06205e20364cc387c0897c671ea98c290fb2939b0c628ef2", kill_on_drop: false }`
[INFO] [stdout] caade45fb77b07aa06205e20364cc387c0897c671ea98c290fb2939b0c628ef2
