[INFO] crate blackbox 0.2.0 is already in cache
[INFO] checking blackbox-0.2.0 against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] extracting crate blackbox 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate blackbox 0.2.0 on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-13/source/Cargo.toml
[INFO] crate crates.io crate blackbox 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 745baed4f0994e5ad6ad2d284c3b2661ee0b84dbe75870eacf432c6b9443fae8
[INFO] running `"docker" "start" "-a" "745baed4f0994e5ad6ad2d284c3b2661ee0b84dbe75870eacf432c6b9443fae8"`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking random v0.12.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking probability v0.15.12
[INFO] [stderr]     Checking slog-async v2.4.0
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking rusty-machine v0.5.4
[INFO] [stderr]     Checking blackbox v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]  --> src/bayesian.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cmp::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/bayesian.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         for i in 0..N {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]  --> src/bayesian.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cmp::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `domains`
[INFO] [stderr]   --> src/bayesian.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     domains: Vec<Variable>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/bayesian.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         for i in 0..N {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `domains`
[INFO] [stderr]   --> src/bayesian.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     domains: Vec<Variable>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `blackbox_derive`
[INFO] [stderr]  --> examples/more_complex.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | extern crate blackbox_derive;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `blackbox_derive`
[INFO] [stderr]  --> examples/simple.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | extern crate blackbox_derive;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[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] [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] [stderr] error: build failed
[INFO] running `"docker" "inspect" "745baed4f0994e5ad6ad2d284c3b2661ee0b84dbe75870eacf432c6b9443fae8"`
[INFO] running `"docker" "rm" "-f" "745baed4f0994e5ad6ad2d284c3b2661ee0b84dbe75870eacf432c6b9443fae8"`
[INFO] [stdout] 745baed4f0994e5ad6ad2d284c3b2661ee0b84dbe75870eacf432c6b9443fae8