[INFO] cloning repository https://github.com/Juici/degreen
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Juici/degreen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJuici%2Fdegreen"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJuici%2Fdegreen'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 985592f4607cf089ed2b3546ab4af48a7706dd98
[INFO] checking Juici/degreen against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJuici%2Fdegreen" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Juici/degreen 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/Juici/degreen
[INFO] finished tweaking git repo https://github.com/Juici/degreen
[INFO] tweaked toml for git repo https://github.com/Juici/degreen written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Juici/degreen already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f8a0308bb76c032905fbbe3b52e5d491d290889225b7bdcd4101b6b7ad604b27
[INFO] running `"docker" "start" "-a" "f8a0308bb76c032905fbbe3b52e5d491d290889225b7bdcd4101b6b7ad604b27"`
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking pkg v1.1.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling degreen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:25:32
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:25:32
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.88s
[INFO] running `"docker" "inspect" "f8a0308bb76c032905fbbe3b52e5d491d290889225b7bdcd4101b6b7ad604b27"`
[INFO] running `"docker" "rm" "-f" "f8a0308bb76c032905fbbe3b52e5d491d290889225b7bdcd4101b6b7ad604b27"`
[INFO] [stdout] f8a0308bb76c032905fbbe3b52e5d491d290889225b7bdcd4101b6b7ad604b27