[INFO] cloning repository https://github.com/bretthancox/rustMonteCarlo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bretthancox/rustMonteCarlo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbretthancox%2FrustMonteCarlo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbretthancox%2FrustMonteCarlo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eef9d7bd1d8f424ff740d3c230a023fb3f54ff0
[INFO] checking bretthancox/rustMonteCarlo against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbretthancox%2FrustMonteCarlo" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bretthancox/rustMonteCarlo 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/bretthancox/rustMonteCarlo
[INFO] finished tweaking git repo https://github.com/bretthancox/rustMonteCarlo
[INFO] tweaked toml for git repo https://github.com/bretthancox/rustMonteCarlo written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/bretthancox/rustMonteCarlo 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 9204cfbbe11e08b44e9f1174f0535dc2032342e807a4ebef7bebd164abe3c35b
[INFO] running `Command { std: "docker" "start" "-a" "9204cfbbe11e08b44e9f1174f0535dc2032342e807a4ebef7bebd164abe3c35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9204cfbbe11e08b44e9f1174f0535dc2032342e807a4ebef7bebd164abe3c35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9204cfbbe11e08b44e9f1174f0535dc2032342e807a4ebef7bebd164abe3c35b", kill_on_drop: false }`
[INFO] [stdout] 9204cfbbe11e08b44e9f1174f0535dc2032342e807a4ebef7bebd164abe3c35b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] b8fe2bbb06adba5e32a6a5c78bc1014e66be7ce4c56afb35045028fc56763329
[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" "b8fe2bbb06adba5e32a6a5c78bc1014e66be7ce4c56afb35045028fc56763329", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.8
[INFO] [stderr]    Compiling structopt-derive v0.4.2
[INFO] [stderr]     Checking structopt v0.3.9
[INFO] [stderr]     Checking monte_carlo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `ErrorKind::*`, `Read`, `fs::File`, `self`, `str::FromStr`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 8 |     io::{self, BufReader, ErrorKind::*, Read},
[INFO] [stdout]   |          ^^^^  ^^^^^^^^^  ^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 9 |     str::FromStr,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `ErrorKind::*`, `Read`, `fs::File`, `self`, `str::FromStr`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 8 |     io::{self, BufReader, ErrorKind::*, Read},
[INFO] [stdout]   |          ^^^^  ^^^^^^^^^  ^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 9 |     str::FromStr,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.54s
[INFO] running `Command { std: "docker" "inspect" "b8fe2bbb06adba5e32a6a5c78bc1014e66be7ce4c56afb35045028fc56763329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8fe2bbb06adba5e32a6a5c78bc1014e66be7ce4c56afb35045028fc56763329", kill_on_drop: false }`
[INFO] [stdout] b8fe2bbb06adba5e32a6a5c78bc1014e66be7ce4c56afb35045028fc56763329