[INFO] cloning repository https://github.com/flatcar-linux/coreos-metadata
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flatcar-linux/coreos-metadata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stderr] warning: refname 'HEAD' is ambiguous.
[INFO] [stdout] 56549117e7ac1941e41ff0274da6950617377fff
[INFO] checking flatcar-linux/coreos-metadata against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flatcar-linux/coreos-metadata on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/flatcar-linux/coreos-metadata
[INFO] finished tweaking git repo https://github.com/flatcar-linux/coreos-metadata
[INFO] tweaked toml for git repo https://github.com/flatcar-linux/coreos-metadata written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/flatcar-linux/coreos-metadata already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 428929915a9fb7dde942ea3ac59e3c4e0a09b50b5e21f5d4caaaf3fcd9befa0b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "428929915a9fb7dde942ea3ac59e3c4e0a09b50b5e21f5d4caaaf3fcd9befa0b"`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling arrayvec v0.4.9
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]     Checking pnet_base v0.22.0
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[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]    Compiling encoding_rs v0.8.13
[INFO] [stderr]    Compiling pnet v0.22.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
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[INFO] [stderr]     Checking smallvec v0.6.7
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[INFO] [stderr]     Checking regex v1.1.0
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[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-udp v0.1.3
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[INFO] [stderr]    Compiling serde_derive v1.0.90
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[INFO] [stderr]     Checking serde_json v1.0.39
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[INFO] [stderr]    Compiling syntex v0.42.2
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[INFO] [stderr]    Compiling pnet_packet v0.22.0
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[INFO] [stderr]     Checking afterburn v4.0.1-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metadata.rs:36:61
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn fetch_metadata(provider: &str) -> errors::Result<Box<providers::MetadataProvider>> {
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn providers::MetadataProvider`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `tempfile` is imported redundantly
[INFO] [stderr]    --> src/providers/mod.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     use tempfile;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:39:1
[INFO] [stderr]     |
[INFO] [stderr] 39  | extern crate tempfile;
[INFO] [stderr]     | ---------------------- the item `tempfile` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metadata.rs:36:61
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn fetch_metadata(provider: &str) -> errors::Result<Box<providers::MetadataProvider>> {
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn providers::MetadataProvider`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `tempfile` is imported redundantly
[INFO] [stderr]    --> src/providers/mod.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     use tempfile;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:39:1
[INFO] [stderr]     |
[INFO] [stderr] 39  | extern crate tempfile;
[INFO] [stderr]     | ---------------------- the item `tempfile` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 44s
[INFO] running `"docker" "inspect" "428929915a9fb7dde942ea3ac59e3c4e0a09b50b5e21f5d4caaaf3fcd9befa0b"`
[INFO] running `"docker" "rm" "-f" "428929915a9fb7dde942ea3ac59e3c4e0a09b50b5e21f5d4caaaf3fcd9befa0b"`
[INFO] [stdout] 428929915a9fb7dde942ea3ac59e3c4e0a09b50b5e21f5d4caaaf3fcd9befa0b