[INFO] cloning repository https://github.com/ptechen/rust_mod_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ptechen/rust_mod_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptechen%2Frust_mod_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptechen%2Frust_mod_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eb66f6e977381bf654b2f5caeb2989dc6f31d62
[INFO] checking ptechen/rust_mod_learn against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptechen%2Frust_mod_learn" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ptechen/rust_mod_learn on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ptechen/rust_mod_learn
[INFO] finished tweaking git repo https://github.com/ptechen/rust_mod_learn
[INFO] tweaked toml for git repo https://github.com/ptechen/rust_mod_learn written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ptechen/rust_mod_learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 772f89d0206aac4b0a01c0b159ee8f42b4995ba3310fba9e32ecf9a6f06d9d20
[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" "772f89d0206aac4b0a01c0b159ee8f42b4995ba3310fba9e32ecf9a6f06d9d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "772f89d0206aac4b0a01c0b159ee8f42b4995ba3310fba9e32ecf9a6f06d9d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "772f89d0206aac4b0a01c0b159ee8f42b4995ba3310fba9e32ecf9a6f06d9d20", kill_on_drop: false }`
[INFO] [stdout] 772f89d0206aac4b0a01c0b159ee8f42b4995ba3310fba9e32ecf9a6f06d9d20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 56abb377cc08996c627e14d7d48ed9825ced8280593e19d1f6beb648574f3b93
[INFO] running `Command { std: "docker" "start" "-a" "56abb377cc08996c627e14d7d48ed9825ced8280593e19d1f6beb648574f3b93", kill_on_drop: false }`
[INFO] [stderr]     Checking mod_learn4 v0.1.0 (/opt/rustwide/workdir/mod_learn4)
[INFO] [stderr]     Checking mod_learn3 v0.1.0 (/opt/rustwide/workdir/mod_learn3)
[INFO] [stderr]     Checking mod_learn2 v0.1.0 (/opt/rustwide/workdir/mod_learn2)
[INFO] [stderr]     Checking mod_learn1 v0.1.0 (/opt/rustwide/workdir/mod_learn1)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "56abb377cc08996c627e14d7d48ed9825ced8280593e19d1f6beb648574f3b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56abb377cc08996c627e14d7d48ed9825ced8280593e19d1f6beb648574f3b93", kill_on_drop: false }`
[INFO] [stdout] 56abb377cc08996c627e14d7d48ed9825ced8280593e19d1f6beb648574f3b93