[INFO] cloning repository https://github.com/JustinThorp/samplr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JustinThorp/samplr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustinThorp%2Fsamplr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustinThorp%2Fsamplr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af2e00fd0c2f20fcb8886f311fd1f7eaeb6777ae
[INFO] checking JustinThorp/samplr against try#39605810efb1a0d52f955bfba9e4eec7a01d5deb for pr-153692
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJustinThorp%2Fsamplr" "/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/JustinThorp/samplr
[INFO] finished tweaking git repo https://github.com/JustinThorp/samplr
[INFO] tweaked toml for git repo https://github.com/JustinThorp/samplr written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JustinThorp/samplr on toolchain 39605810efb1a0d52f955bfba9e4eec7a01d5deb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JustinThorp/samplr 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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] beb9fa18f7c41500156c4e4e768e037bb35d1cc9fd8a55c0ca3e129651f8e356
[INFO] running `Command { std: "docker" "start" "-a" "beb9fa18f7c41500156c4e4e768e037bb35d1cc9fd8a55c0ca3e129651f8e356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beb9fa18f7c41500156c4e4e768e037bb35d1cc9fd8a55c0ca3e129651f8e356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beb9fa18f7c41500156c4e4e768e037bb35d1cc9fd8a55c0ca3e129651f8e356", kill_on_drop: false }`
[INFO] [stdout] beb9fa18f7c41500156c4e4e768e037bb35d1cc9fd8a55c0ca3e129651f8e356
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 519fa23bf2bf6399e19403a7f1e1f512f544decfbfee861b967d259bf6444483
[INFO] running `Command { std: "docker" "start" "-a" "519fa23bf2bf6399e19403a7f1e1f512f544decfbfee861b967d259bf6444483", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking samplr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |      let x: Normal = Normal::new(100.0,1.0);
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pdf` is never used
[INFO] [stdout]  --> src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait Distribution {
[INFO] [stdout]   |       ------------ method in this trait
[INFO] [stdout] 7 |     fn sample<R: rand::prelude::Rng + ?Sized>(&self, rng: &mut R) -> f64;
[INFO] [stdout] 8 |     fn pdf(&self,x:f64) -> f64;
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |      let x: Normal = Normal::new(100.0,1.0);
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pdf` is never used
[INFO] [stdout]  --> src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait Distribution {
[INFO] [stdout]   |       ------------ method in this trait
[INFO] [stdout] 7 |     fn sample<R: rand::prelude::Rng + ?Sized>(&self, rng: &mut R) -> f64;
[INFO] [stdout] 8 |     fn pdf(&self,x:f64) -> f64;
[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 1.55s
[INFO] running `Command { std: "docker" "inspect" "519fa23bf2bf6399e19403a7f1e1f512f544decfbfee861b967d259bf6444483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "519fa23bf2bf6399e19403a7f1e1f512f544decfbfee861b967d259bf6444483", kill_on_drop: false }`
[INFO] [stdout] 519fa23bf2bf6399e19403a7f1e1f512f544decfbfee861b967d259bf6444483