[INFO] cloning repository https://github.com/al-jshen/mcmc-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/al-jshen/mcmc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fal-jshen%2Fmcmc-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fal-jshen%2Fmcmc-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5a6f3ae03e9ddfbe743758c4088065bceca5b69
[INFO] testing al-jshen/mcmc-rs against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fal-jshen%2Fmcmc-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/al-jshen/mcmc-rs on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/al-jshen/mcmc-rs
[INFO] finished tweaking git repo https://github.com/al-jshen/mcmc-rs
[INFO] tweaked toml for git repo https://github.com/al-jshen/mcmc-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/al-jshen/mcmc-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compute v0.1.5
[INFO] [stderr]   Downloaded approx_eq v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 587f659153ffa132da5ad7346afda78fcc4754382d57635c47cfc987cfd5193c
[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" "587f659153ffa132da5ad7346afda78fcc4754382d57635c47cfc987cfd5193c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "587f659153ffa132da5ad7346afda78fcc4754382d57635c47cfc987cfd5193c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587f659153ffa132da5ad7346afda78fcc4754382d57635c47cfc987cfd5193c", kill_on_drop: false }`
[INFO] [stdout] 587f659153ffa132da5ad7346afda78fcc4754382d57635c47cfc987cfd5193c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9aa1c14341b37ce8a221b0fa0831f37d175c363e70bcd938b5e6f390d762b755
[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" "9aa1c14341b37ce8a221b0fa0831f37d175c363e70bcd938b5e6f390d762b755", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx_eq v0.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling compute v0.1.5
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling mcmc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/sampler_linreg.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/sampler_linreg.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     if (lpdf2 > lpdf) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_iter`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let n_iter = 3000;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_iter`
[INFO] [stdout]  --> src/sampler_linreg.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     n_iter: usize,
[INFO] [stdout]   |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `propalpha`
[INFO] [stdout]   --> src/sampler_linreg.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     propalpha: Normal,      // how to draw proposals to change alpha param
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propalpha`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `propbeta`
[INFO] [stdout]   --> src/sampler_linreg.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     propbeta: Normal,       // how to draw proposals to change beta param
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propbeta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `propsigma`
[INFO] [stdout]   --> src/sampler_linreg.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     propsigma: Normal,      // how to draw proposals to change sigma param
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propsigma`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.17s
[INFO] running `Command { std: "docker" "inspect" "9aa1c14341b37ce8a221b0fa0831f37d175c363e70bcd938b5e6f390d762b755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aa1c14341b37ce8a221b0fa0831f37d175c363e70bcd938b5e6f390d762b755", kill_on_drop: false }`
[INFO] [stdout] 9aa1c14341b37ce8a221b0fa0831f37d175c363e70bcd938b5e6f390d762b755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] 3f80c5c579c969b4c1e15181c098db7680f87e4c884e0c8bbb56944c0be06c18
[INFO] running `Command { std: "docker" "start" "-a" "3f80c5c579c969b4c1e15181c098db7680f87e4c884e0c8bbb56944c0be06c18", kill_on_drop: false }`
[INFO] [stderr]    Compiling mcmc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/sampler_linreg.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/sampler_linreg.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     if (lpdf2 > lpdf) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_iter`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let n_iter = 3000;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_iter`
[INFO] [stdout]  --> src/sampler_linreg.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     n_iter: usize,
[INFO] [stdout]   |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `propalpha`
[INFO] [stdout]   --> src/sampler_linreg.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     propalpha: Normal,      // how to draw proposals to change alpha param
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propalpha`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `propbeta`
[INFO] [stdout]   --> src/sampler_linreg.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     propbeta: Normal,       // how to draw proposals to change beta param
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propbeta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `propsigma`
[INFO] [stdout]   --> src/sampler_linreg.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     propsigma: Normal,      // how to draw proposals to change sigma param
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propsigma`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "3f80c5c579c969b4c1e15181c098db7680f87e4c884e0c8bbb56944c0be06c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f80c5c579c969b4c1e15181c098db7680f87e4c884e0c8bbb56944c0be06c18", kill_on_drop: false }`
[INFO] [stdout] 3f80c5c579c969b4c1e15181c098db7680f87e4c884e0c8bbb56944c0be06c18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] fe07ea5a1cf8d2c9c79062d9111d7aeb73b0ebd3f5e70dc2ce9abf85181fd6f8
[INFO] running `Command { std: "docker" "start" "-a" "fe07ea5a1cf8d2c9c79062d9111d7aeb73b0ebd3f5e70dc2ce9abf85181fd6f8", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/sampler_linreg.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/sampler_linreg.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 |     if (lpdf2 > lpdf) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_iter`
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let n_iter = 3000;
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_iter`
[INFO] [stderr]  --> src/sampler_linreg.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     n_iter: usize,
[INFO] [stderr]   |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_iter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `propalpha`
[INFO] [stderr]   --> src/sampler_linreg.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     propalpha: Normal,      // how to draw proposals to change alpha param
[INFO] [stderr]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propalpha`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `propbeta`
[INFO] [stderr]   --> src/sampler_linreg.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     propbeta: Normal,       // how to draw proposals to change beta param
[INFO] [stderr]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propbeta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `propsigma`
[INFO] [stderr]   --> src/sampler_linreg.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     propsigma: Normal,      // how to draw proposals to change sigma param
[INFO] [stderr]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propsigma`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mcmc_rs-c4e8b5470a2c713e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe07ea5a1cf8d2c9c79062d9111d7aeb73b0ebd3f5e70dc2ce9abf85181fd6f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe07ea5a1cf8d2c9c79062d9111d7aeb73b0ebd3f5e70dc2ce9abf85181fd6f8", kill_on_drop: false }`
[INFO] [stdout] fe07ea5a1cf8d2c9c79062d9111d7aeb73b0ebd3f5e70dc2ce9abf85181fd6f8