[INFO] cloning repository https://github.com/heri/levenshtein_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/heri/levenshtein_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheri%2Flevenshtein_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheri%2Flevenshtein_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af67edaa75f223ab59b8dc34ea36410f48005b60
[INFO] checking heri/levenshtein_rust against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheri%2Flevenshtein_rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heri/levenshtein_rust on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/heri/levenshtein_rust
[INFO] finished tweaking git repo https://github.com/heri/levenshtein_rust
[INFO] tweaked toml for git repo https://github.com/heri/levenshtein_rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/heri/levenshtein_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cslice v0.2.0
[INFO] [stderr]   Downloaded helix v0.5.0
[INFO] [stderr]   Downloaded libcruby-sys v0.5.0
[INFO] [stderr]   Downloaded cstr-macro v0.1.0
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07d205ad3114acc00af34d6816b8e268037c9877b0734edde5652df81611c1e0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07d205ad3114acc00af34d6816b8e268037c9877b0734edde5652df81611c1e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07d205ad3114acc00af34d6816b8e268037c9877b0734edde5652df81611c1e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d205ad3114acc00af34d6816b8e268037c9877b0734edde5652df81611c1e0", kill_on_drop: false }`
[INFO] [stdout] 07d205ad3114acc00af34d6816b8e268037c9877b0734edde5652df81611c1e0
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 484f1114300c1e6e37b5e5f83fae6a980c3edce4f89db4bd280bd878c42ce7ad
[INFO] running `Command { std: "docker" "start" "-a" "484f1114300c1e6e37b5e5f83fae6a980c3edce4f89db4bd280bd878c42ce7ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling libcruby-sys v0.5.0
[INFO] [stderr]     Checking cstr-macro v0.1.0
[INFO] [stderr]     Checking cslice v0.2.0
[INFO] [stderr]     Checking helix v0.5.0
[INFO] [stderr]     Checking levenshtein-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "484f1114300c1e6e37b5e5f83fae6a980c3edce4f89db4bd280bd878c42ce7ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "484f1114300c1e6e37b5e5f83fae6a980c3edce4f89db4bd280bd878c42ce7ad", kill_on_drop: false }`
[INFO] [stdout] 484f1114300c1e6e37b5e5f83fae6a980c3edce4f89db4bd280bd878c42ce7ad