[INFO] cloning repository https://github.com/C4ptainCrunch/schemers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/C4ptainCrunch/schemers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC4ptainCrunch%2Fschemers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC4ptainCrunch%2Fschemers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d072f4430daf145dac0d8f81de3be4014022bd0
[INFO] checking C4ptainCrunch/schemers against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC4ptainCrunch%2Fschemers" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/C4ptainCrunch/schemers on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/C4ptainCrunch/schemers
[INFO] finished tweaking git repo https://github.com/C4ptainCrunch/schemers
[INFO] tweaked toml for git repo https://github.com/C4ptainCrunch/schemers written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/C4ptainCrunch/schemers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6eeb882cd6aa86aa6b85acdbf7346b94ce0971c6b2f171dae896fdf0fcdfdc3
[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" "a6eeb882cd6aa86aa6b85acdbf7346b94ce0971c6b2f171dae896fdf0fcdfdc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6eeb882cd6aa86aa6b85acdbf7346b94ce0971c6b2f171dae896fdf0fcdfdc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6eeb882cd6aa86aa6b85acdbf7346b94ce0971c6b2f171dae896fdf0fcdfdc3", kill_on_drop: false }`
[INFO] [stdout] a6eeb882cd6aa86aa6b85acdbf7346b94ce0971c6b2f171dae896fdf0fcdfdc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e5e52a82f7427eddd09de2d4f1a1d6a253b89ececcb0699f7d1eb151c7b7c1e
[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" "9e5e52a82f7427eddd09de2d4f1a1d6a253b89ececcb0699f7d1eb151c7b7c1e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking schemers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "9e5e52a82f7427eddd09de2d4f1a1d6a253b89ececcb0699f7d1eb151c7b7c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5e52a82f7427eddd09de2d4f1a1d6a253b89ececcb0699f7d1eb151c7b7c1e", kill_on_drop: false }`
[INFO] [stdout] 9e5e52a82f7427eddd09de2d4f1a1d6a253b89ececcb0699f7d1eb151c7b7c1e