[INFO] cloning repository https://github.com/JMercie/Rust_First_Steps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JMercie/Rust_First_Steps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMercie%2FRust_First_Steps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMercie%2FRust_First_Steps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a9661acd64798a46ccb1a7776e9a3ba43ab48e6
[INFO] checking JMercie/Rust_First_Steps against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMercie%2FRust_First_Steps" "/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/JMercie/Rust_First_Steps on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JMercie/Rust_First_Steps
[INFO] finished tweaking git repo https://github.com/JMercie/Rust_First_Steps
[INFO] tweaked toml for git repo https://github.com/JMercie/Rust_First_Steps written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/JMercie/Rust_First_Steps already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 62b7d8746db82395ae999f8467bbba9786a0fd8171182f926195c8320cd7dc53
[INFO] running `Command { std: "docker" "start" "-a" "62b7d8746db82395ae999f8467bbba9786a0fd8171182f926195c8320cd7dc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62b7d8746db82395ae999f8467bbba9786a0fd8171182f926195c8320cd7dc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b7d8746db82395ae999f8467bbba9786a0fd8171182f926195c8320cd7dc53", kill_on_drop: false }`
[INFO] [stdout] 62b7d8746db82395ae999f8467bbba9786a0fd8171182f926195c8320cd7dc53
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] add9071bca13f5f79d2f6f4a1b7c4baec19fe230e67408dc11e4e662aeb0ee6f
[INFO] running `Command { std: "docker" "start" "-a" "add9071bca13f5f79d2f6f4a1b7c4baec19fe230e67408dc11e4e662aeb0ee6f", kill_on_drop: false }`
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking backtrace v0.3.43
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking ferris-says v0.1.1
[INFO] [stderr]     Checking firstRustProyect v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `firstRustProyect` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `first_rust_proyect`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `firstRustProyect` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `first_rust_proyect`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "add9071bca13f5f79d2f6f4a1b7c4baec19fe230e67408dc11e4e662aeb0ee6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add9071bca13f5f79d2f6f4a1b7c4baec19fe230e67408dc11e4e662aeb0ee6f", kill_on_drop: false }`
[INFO] [stdout] add9071bca13f5f79d2f6f4a1b7c4baec19fe230e67408dc11e4e662aeb0ee6f