[INFO] fetching crate afterburn 5.5.0...
[INFO] checking afterburn-5.5.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate afterburn 5.5.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate afterburn 5.5.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate afterburn 5.5.0
[INFO] finished tweaking crates.io crate afterburn 5.5.0
[INFO] tweaked toml for crates.io crate afterburn 5.5.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate afterburn 5.5.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a19110bb45298525a2a8b3d03a535468b08d12a36823279c66fc6748d608b1c9
[INFO] running `Command { std: "docker" "start" "-a" "a19110bb45298525a2a8b3d03a535468b08d12a36823279c66fc6748d608b1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a19110bb45298525a2a8b3d03a535468b08d12a36823279c66fc6748d608b1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a19110bb45298525a2a8b3d03a535468b08d12a36823279c66fc6748d608b1c9", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "e10572cdd3b0242eed97a247fe456a53e08c5a35f4029a95be4839076d5563ac", kill_on_drop: false }`
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[INFO] [stderr]     Checking afterburn v5.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]   --> src/network.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::string::ToString;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToString` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/aliyun/mock_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mockito;
[INFO] [stdout]   |     ^^^^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/aws/mock_tests.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use mockito;
[INFO] [stdout]   |     ^^^^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/exoscale/mock_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mockito;
[INFO] [stdout]   |     ^^^^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/gcp/mock_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mockito;
[INFO] [stdout]   |     ^^^^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/hetzner/mock_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use mockito;
[INFO] [stdout]   |     ^^^^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/microsoft/azure/mock_tests.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mockito::{self, Matcher};
[INFO] [stdout]   |               ^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/microsoft/azurestack/mock_tests.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mockito::{self, Matcher};
[INFO] [stdout]   |               ^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/openstack/mock_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mockito;
[INFO] [stdout]   |     ^^^^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ipnetwork` is imported redundantly
[INFO] [stdout]   --> src/providers/packet/mod.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 | use ipnetwork::{self, IpNetwork, Ipv4Network, Ipv6Network};
[INFO] [stdout]    |                 ^^^^ the item `ipnetwork` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/packet/mock_tests.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mockito::{self, Matcher};
[INFO] [stdout]   |               ^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/scaleway/mock_tests.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use mockito::{self, Matcher};
[INFO] [stdout]   |               ^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mockito` is imported redundantly
[INFO] [stdout]  --> src/providers/vultr/mock_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mockito;
[INFO] [stdout]   |     ^^^^^^^ the item `mockito` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `uzers` is imported redundantly
[INFO] [stdout]   --> src/providers/mod.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 | use uzers::{self, User};
[INFO] [stdout]    |             ^^^^ the item `uzers` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/retry/client.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | use reqwest::{self, blocking, header, Method};
[INFO] [stdout]    |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/network.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]   --> src/network.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::string::ToString;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ipnetwork` is imported redundantly
[INFO] [stdout]   --> src/providers/packet/mod.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 | use ipnetwork::{self, IpNetwork, Ipv4Network, Ipv6Network};
[INFO] [stdout]    |                 ^^^^ the item `ipnetwork` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `uzers` is imported redundantly
[INFO] [stdout]   --> src/providers/mod.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 | use uzers::{self, User};
[INFO] [stdout]    |             ^^^^ the item `uzers` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/retry/client.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | use reqwest::{self, blocking, header, Method};
[INFO] [stdout]    |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fqdn` and `public_keys` are never read
[INFO] [stdout]   --> src/providers/ibmcloud_classic/mod.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct MetaDataJSON {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fqdn: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub public_keys: HashMap<String, String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaDataJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `kind` are never read
[INFO] [stdout]   --> src/providers/ibmcloud_classic/mod.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct NetNetworkJSON {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 80 |     /// Unique network ID.
[INFO] [stdout] 81 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub kind: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NetNetworkJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `availability_zone` is never read
[INFO] [stdout]   --> src/providers/openstack/configdrive.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct MetadataOpenstackJSON {
[INFO] [stdout]    |            --------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub availability_zone: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetadataOpenstackJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fqdn` is never read
[INFO] [stdout]   --> src/providers/powervs/mod.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct MetaDataJSON {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fqdn: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaDataJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fqdn` is never read
[INFO] [stdout]   --> src/providers/ibmcloud_classic/mod.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct MetaDataJSON {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fqdn: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaDataJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `kind` are never read
[INFO] [stdout]   --> src/providers/ibmcloud_classic/mod.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct NetNetworkJSON {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 80 |     /// Unique network ID.
[INFO] [stdout] 81 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub kind: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NetNetworkJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fqdn` is never read
[INFO] [stdout]   --> src/providers/powervs/mod.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct MetaDataJSON {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fqdn: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaDataJSON` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.14s
[INFO] running `Command { std: "docker" "inspect" "e10572cdd3b0242eed97a247fe456a53e08c5a35f4029a95be4839076d5563ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10572cdd3b0242eed97a247fe456a53e08c5a35f4029a95be4839076d5563ac", kill_on_drop: false }`
[INFO] [stdout] e10572cdd3b0242eed97a247fe456a53e08c5a35f4029a95be4839076d5563ac