[INFO] cloning repository https://github.com/neildanson/rust_tracer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neildanson/rust_tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneildanson%2Frust_tracer"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneildanson%2Frust_tracer'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 12dbd102ce3637470028f2e7a013f7f688bec870
[INFO] checking neildanson/rust_tracer against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneildanson%2Frust_tracer" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neildanson/rust_tracer on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/neildanson/rust_tracer
[INFO] finished tweaking git repo https://github.com/neildanson/rust_tracer
[INFO] tweaked toml for git repo https://github.com/neildanson/rust_tracer written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/neildanson/rust_tracer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 7010e3635240ef44262d9ccda05ed692f11be2277ef33c9d2860448f3fdaacac
[INFO] running `"docker" "start" "-a" "7010e3635240ef44262d9ccda05ed692f11be2277ef33c9d2860448f3fdaacac"`
[INFO] [stderr]     Checking lzw v0.9.0
[INFO] [stderr]     Checking miniz-sys v0.1.12
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking gif v0.7.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking png v0.4.3
[INFO] [stderr]     Checking image v0.7.2
[INFO] [stderr]     Checking rust_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.41s
[INFO] running `"docker" "inspect" "7010e3635240ef44262d9ccda05ed692f11be2277ef33c9d2860448f3fdaacac"`
[INFO] running `"docker" "rm" "-f" "7010e3635240ef44262d9ccda05ed692f11be2277ef33c9d2860448f3fdaacac"`
[INFO] [stdout] 7010e3635240ef44262d9ccda05ed692f11be2277ef33c9d2860448f3fdaacac