[INFO] cloning repository https://github.com/luser/rust-non-utf8-stdout
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luser/rust-non-utf8-stdout" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Frust-non-utf8-stdout", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Frust-non-utf8-stdout'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5f5d4166ebb25d0cd5fbf2fc52f02ae161ae20b
[INFO] checking luser/rust-non-utf8-stdout against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Frust-non-utf8-stdout" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luser/rust-non-utf8-stdout on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luser/rust-non-utf8-stdout
[INFO] finished tweaking git repo https://github.com/luser/rust-non-utf8-stdout
[INFO] tweaked toml for git repo https://github.com/luser/rust-non-utf8-stdout written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/luser/rust-non-utf8-stdout already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e85fa9b2e1226aff3fa4dfe7189c58ad874cbaf61d9c7d8f596147697a18655a
[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" "e85fa9b2e1226aff3fa4dfe7189c58ad874cbaf61d9c7d8f596147697a18655a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e85fa9b2e1226aff3fa4dfe7189c58ad874cbaf61d9c7d8f596147697a18655a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e85fa9b2e1226aff3fa4dfe7189c58ad874cbaf61d9c7d8f596147697a18655a", kill_on_drop: false }`
[INFO] [stdout] e85fa9b2e1226aff3fa4dfe7189c58ad874cbaf61d9c7d8f596147697a18655a
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e87b2a04187d4c9dec269e1abda38d4ffae3e8a225cd3f5c425ac229b83f9cf
[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" "8e87b2a04187d4c9dec269e1abda38d4ffae3e8a225cd3f5c425ac229b83f9cf", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-non-utf8-stdout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "8e87b2a04187d4c9dec269e1abda38d4ffae3e8a225cd3f5c425ac229b83f9cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e87b2a04187d4c9dec269e1abda38d4ffae3e8a225cd3f5c425ac229b83f9cf", kill_on_drop: false }`
[INFO] [stdout] 8e87b2a04187d4c9dec269e1abda38d4ffae3e8a225cd3f5c425ac229b83f9cf