[INFO] cloning repository https://github.com/Perfspec/ch08-03-hash-maps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Perfspec/ch08-03-hash-maps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerfspec%2Fch08-03-hash-maps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerfspec%2Fch08-03-hash-maps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c02ea42ec3ec165cb510e7621562978ee2e651c2
[INFO] checking Perfspec/ch08-03-hash-maps against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerfspec%2Fch08-03-hash-maps" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Perfspec/ch08-03-hash-maps on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Perfspec/ch08-03-hash-maps
[INFO] finished tweaking git repo https://github.com/Perfspec/ch08-03-hash-maps
[INFO] tweaked toml for git repo https://github.com/Perfspec/ch08-03-hash-maps written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Perfspec/ch08-03-hash-maps already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", 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] 1caa3f4f060fd9240badd8e04df4a14e0b88ee03a2a637a12eb3ed727a670786
[INFO] running `Command { std: "docker" "start" "-a" "1caa3f4f060fd9240badd8e04df4a14e0b88ee03a2a637a12eb3ed727a670786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1caa3f4f060fd9240badd8e04df4a14e0b88ee03a2a637a12eb3ed727a670786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1caa3f4f060fd9240badd8e04df4a14e0b88ee03a2a637a12eb3ed727a670786", kill_on_drop: false }`
[INFO] [stdout] 1caa3f4f060fd9240badd8e04df4a14e0b88ee03a2a637a12eb3ed727a670786
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed0cfe8fcd28e3991ac93f5aadeebc05cbfdc0a4895580b644bf7e9f2fb15dcc
[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" "ed0cfe8fcd28e3991ac93f5aadeebc05cbfdc0a4895580b644bf7e9f2fb15dcc", kill_on_drop: false }`
[INFO] [stderr]     Checking ch08-03-hash-maps v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "ed0cfe8fcd28e3991ac93f5aadeebc05cbfdc0a4895580b644bf7e9f2fb15dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed0cfe8fcd28e3991ac93f5aadeebc05cbfdc0a4895580b644bf7e9f2fb15dcc", kill_on_drop: false }`
[INFO] [stdout] ed0cfe8fcd28e3991ac93f5aadeebc05cbfdc0a4895580b644bf7e9f2fb15dcc