[INFO] fetching crate blackbox 0.2.0...
[INFO] testing blackbox-0.2.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate blackbox 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate blackbox 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackbox 0.2.0
[INFO] finished tweaking crates.io crate blackbox 0.2.0
[INFO] tweaked toml for crates.io crate blackbox 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate blackbox 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] e12c6f99e1316191bf8b6c815b21524995c323599958941224e78fd1484725ff
[INFO] running `Command { std: "docker" "start" "-a" "e12c6f99e1316191bf8b6c815b21524995c323599958941224e78fd1484725ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e12c6f99e1316191bf8b6c815b21524995c323599958941224e78fd1484725ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e12c6f99e1316191bf8b6c815b21524995c323599958941224e78fd1484725ff", kill_on_drop: false }`
[INFO] [stdout] e12c6f99e1316191bf8b6c815b21524995c323599958941224e78fd1484725ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aa744cb5df5b3c0ac8caa2de355ee70989246a9b05501ab1f0feb5fac63abb6
[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" "8aa744cb5df5b3c0ac8caa2de355ee70989246a9b05501ab1f0feb5fac63abb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling random v0.12.2
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[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]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling special v0.8.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling probability v0.15.12
[INFO] [stderr]    Compiling slog-async v2.4.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling rulinalg v0.3.7
[INFO] [stderr]    Compiling slog-term v2.5.0
[INFO] [stderr]    Compiling rusty-machine v0.5.4
[INFO] [stderr]    Compiling blackbox v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/bayesian.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bayesian.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         for i in 0..N {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `domains`
[INFO] [stdout]   --> src/bayesian.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     domains: Vec<Variable>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.73s
[INFO] running `Command { std: "docker" "inspect" "8aa744cb5df5b3c0ac8caa2de355ee70989246a9b05501ab1f0feb5fac63abb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aa744cb5df5b3c0ac8caa2de355ee70989246a9b05501ab1f0feb5fac63abb6", kill_on_drop: false }`
[INFO] [stdout] 8aa744cb5df5b3c0ac8caa2de355ee70989246a9b05501ab1f0feb5fac63abb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 11c0e867fe7d1b6e17143436d1e8e97bbd1bc3b6863bc14d57c75865a730da72
[INFO] running `Command { std: "docker" "start" "-a" "11c0e867fe7d1b6e17143436d1e8e97bbd1bc3b6863bc14d57c75865a730da72", kill_on_drop: false }`
[INFO] [stderr]    Compiling blackbox v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/bayesian.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bayesian.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         for i in 0..N {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `domains`
[INFO] [stdout]   --> src/bayesian.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     domains: Vec<Variable>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `blackbox_derive`
[INFO] [stdout]  --> examples/simple.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate blackbox_derive;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blackbox`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `blackbox_derive`
[INFO] [stdout]  --> examples/more_complex.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate blackbox_derive;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/bayesian.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bayesian.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         for i in 0..N {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `domains`
[INFO] [stdout]   --> src/bayesian.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     domains: Vec<Variable>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "11c0e867fe7d1b6e17143436d1e8e97bbd1bc3b6863bc14d57c75865a730da72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c0e867fe7d1b6e17143436d1e8e97bbd1bc3b6863bc14d57c75865a730da72", kill_on_drop: false }`
[INFO] [stdout] 11c0e867fe7d1b6e17143436d1e8e97bbd1bc3b6863bc14d57c75865a730da72
