[INFO] cloning repository https://github.com/DonaCrio/rustlings_solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DonaCrio/rustlings_solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDonaCrio%2Frustlings_solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDonaCrio%2Frustlings_solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa65526da90fc831cff4774164dcfef41be7d51c
[INFO] checking DonaCrio/rustlings_solutions against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDonaCrio%2Frustlings_solutions" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DonaCrio/rustlings_solutions on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DonaCrio/rustlings_solutions
[INFO] finished tweaking git repo https://github.com/DonaCrio/rustlings_solutions
[INFO] tweaked toml for git repo https://github.com/DonaCrio/rustlings_solutions written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/DonaCrio/rustlings_solutions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] d77e9388ccccdea17c606636b7f84ec0386f71307b7b9aaba7abe89dd6667e12
[INFO] running `Command { std: "docker" "start" "-a" "d77e9388ccccdea17c606636b7f84ec0386f71307b7b9aaba7abe89dd6667e12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d77e9388ccccdea17c606636b7f84ec0386f71307b7b9aaba7abe89dd6667e12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77e9388ccccdea17c606636b7f84ec0386f71307b7b9aaba7abe89dd6667e12", kill_on_drop: false }`
[INFO] [stdout] d77e9388ccccdea17c606636b7f84ec0386f71307b7b9aaba7abe89dd6667e12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] e77e77c00e7b291ff6d4174450c35c543cf386eac3744ea0564fac3fa28be05d
[INFO] running `Command { std: "docker" "start" "-a" "e77e77c00e7b291ff6d4174450c35c543cf386eac3744ea0564fac3fa28be05d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking indicatif v0.10.3
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking rustlings v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.32s
[INFO] running `Command { std: "docker" "inspect" "e77e77c00e7b291ff6d4174450c35c543cf386eac3744ea0564fac3fa28be05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e77e77c00e7b291ff6d4174450c35c543cf386eac3744ea0564fac3fa28be05d", kill_on_drop: false }`
[INFO] [stdout] e77e77c00e7b291ff6d4174450c35c543cf386eac3744ea0564fac3fa28be05d