[INFO] cloning repository https://github.com/Lincoln-LM/rng-playground-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lincoln-LM/rng-playground-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLincoln-LM%2Frng-playground-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLincoln-LM%2Frng-playground-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c390a1b6fd3f87af1104ba694b6d2a4c0415fb1
[INFO] checking Lincoln-LM/rng-playground-rs against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLincoln-LM%2Frng-playground-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lincoln-LM/rng-playground-rs
[INFO] finished tweaking git repo https://github.com/Lincoln-LM/rng-playground-rs
[INFO] tweaked toml for git repo https://github.com/Lincoln-LM/rng-playground-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lincoln-LM/rng-playground-rs on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lincoln-LM/rng-playground-rs 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" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "fetch" "--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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d133e3ea9f953ff9fca7c56ceed7cc5d24d982e5f86e96d0e4435b78f81de975
[INFO] running `Command { std: "docker" "start" "-a" "d133e3ea9f953ff9fca7c56ceed7cc5d24d982e5f86e96d0e4435b78f81de975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d133e3ea9f953ff9fca7c56ceed7cc5d24d982e5f86e96d0e4435b78f81de975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d133e3ea9f953ff9fca7c56ceed7cc5d24d982e5f86e96d0e4435b78f81de975", kill_on_drop: false }`
[INFO] [stdout] d133e3ea9f953ff9fca7c56ceed7cc5d24d982e5f86e96d0e4435b78f81de975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcea241fb3ebc0e1ab58549a334bcf6951dc3ad34fe36285fef0ce89a0cc97f6
[INFO] running `Command { std: "docker" "start" "-a" "bcea241fb3ebc0e1ab58549a334bcf6951dc3ad34fe36285fef0ce89a0cc97f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking rayon v1.6.1
[INFO] [stderr]     Checking rust_rng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `advance` is never used
[INFO] [stdout]  --> src/rng.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait RNG {
[INFO] [stdout]   |           --- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn advance(&mut self, adv: Self::AdvanceInt);
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `advance` is never used
[INFO] [stdout]  --> src/rng.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait RNG {
[INFO] [stdout]   |           --- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn advance(&mut self, adv: Self::AdvanceInt);
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "bcea241fb3ebc0e1ab58549a334bcf6951dc3ad34fe36285fef0ce89a0cc97f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcea241fb3ebc0e1ab58549a334bcf6951dc3ad34fe36285fef0ce89a0cc97f6", kill_on_drop: false }`
[INFO] [stdout] bcea241fb3ebc0e1ab58549a334bcf6951dc3ad34fe36285fef0ce89a0cc97f6