[INFO] cloning repository https://github.com/Summer-of-Rust/sor-lab-4-jacksonsilver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Summer-of-Rust/sor-lab-4-jacksonsilver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummer-of-Rust%2Fsor-lab-4-jacksonsilver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummer-of-Rust%2Fsor-lab-4-jacksonsilver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c59c8c68e1fbf7283cffd76cc58bc8cc95b4e73
[INFO] checking Summer-of-Rust/sor-lab-4-jacksonsilver against try#6cbf54b1453b438241487f195740266bb9d8c8ba for pr-139587-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummer-of-Rust%2Fsor-lab-4-jacksonsilver" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Summer-of-Rust/sor-lab-4-jacksonsilver on toolchain 6cbf54b1453b438241487f195740266bb9d8c8ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Summer-of-Rust/sor-lab-4-jacksonsilver
[INFO] finished tweaking git repo https://github.com/Summer-of-Rust/sor-lab-4-jacksonsilver
[INFO] tweaked toml for git repo https://github.com/Summer-of-Rust/sor-lab-4-jacksonsilver written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Summer-of-Rust/sor-lab-4-jacksonsilver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36e3dfc469b21dd0f1b397e837def13d6b445f2ba1c673914ad41e9fe9a0776f
[INFO] running `Command { std: "docker" "start" "-a" "36e3dfc469b21dd0f1b397e837def13d6b445f2ba1c673914ad41e9fe9a0776f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36e3dfc469b21dd0f1b397e837def13d6b445f2ba1c673914ad41e9fe9a0776f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36e3dfc469b21dd0f1b397e837def13d6b445f2ba1c673914ad41e9fe9a0776f", kill_on_drop: false }`
[INFO] [stdout] 36e3dfc469b21dd0f1b397e837def13d6b445f2ba1c673914ad41e9fe9a0776f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c32698c16015a7a6ffb39236c7aea06a9dff8032bb293213c1c0dd4f37711ff4
[INFO] running `Command { std: "docker" "start" "-a" "c32698c16015a7a6ffb39236c7aea06a9dff8032bb293213c1c0dd4f37711ff4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking sor-lab-4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "c32698c16015a7a6ffb39236c7aea06a9dff8032bb293213c1c0dd4f37711ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32698c16015a7a6ffb39236c7aea06a9dff8032bb293213c1c0dd4f37711ff4", kill_on_drop: false }`
[INFO] [stdout] c32698c16015a7a6ffb39236c7aea06a9dff8032bb293213c1c0dd4f37711ff4