[INFO] fetching crate blackbox 0.2.0...
[INFO] testing blackbox-0.2.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate blackbox 0.2.0 into /workspace/builds/worker-5-tc1/source
[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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate blackbox 0.2.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate blackbox 0.2.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2b_simd v0.5.10
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] 552e9056bca19f3ee1ef3456ec3f565f86b2e18a6f90b9b65d5bd7fb578baea1
[INFO] running `Command { std: "docker" "start" "-a" "552e9056bca19f3ee1ef3456ec3f565f86b2e18a6f90b9b65d5bd7fb578baea1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
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[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
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[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[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 v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling special v0.8.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling random v0.12.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling probability v0.15.12
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling slog-async v2.4.0
[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)]` (part of `#[warn(unused)]`) 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]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `N`
[INFO] [stdout]    |
[INFO] [stdout] 34 -         for i in 0..N {
[INFO] [stdout] 34 +         for bayesian::GPSurrogate::<T>::maximize::N in 0..N {
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 34 |         for _i in 0..N {
[INFO] [stdout]    |             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `domains` is never read
[INFO] [stdout]   --> src/bayesian.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct CustomSquaredExp {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 72 |     domains: Vec<Variable>,
[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 13.58s
[INFO] running `Command { std: "docker" "inspect" "552e9056bca19f3ee1ef3456ec3f565f86b2e18a6f90b9b65d5bd7fb578baea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "552e9056bca19f3ee1ef3456ec3f565f86b2e18a6f90b9b65d5bd7fb578baea1", kill_on_drop: false }`
[INFO] [stdout] 552e9056bca19f3ee1ef3456ec3f565f86b2e18a6f90b9b65d5bd7fb578baea1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df55f03492170b6086e2469fe47c1e79583b57f3256de680ca81a12d9fd81e2d
[INFO] running `Command { std: "docker" "start" "-a" "df55f03492170b6086e2469fe47c1e79583b57f3256de680ca81a12d9fd81e2d", 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)]` (part of `#[warn(unused)]`) 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]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `N`
[INFO] [stdout]    |
[INFO] [stdout] 34 -         for i in 0..N {
[INFO] [stdout] 34 +         for bayesian::GPSurrogate::<T>::maximize::N in 0..N {
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 34 |         for _i in 0..N {
[INFO] [stdout]    |             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `domains` is never read
[INFO] [stdout]   --> src/bayesian.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct CustomSquaredExp {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 72 |     domains: Vec<Variable>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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: cannot find macro `make_optimizer` in this scope
[INFO] [stdout]   --> examples/more_complex.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | make_optimizer! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[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[E0422]: cannot find struct, variant or union type `Configuration` in this scope
[INFO] [stdout]   --> examples/more_complex.rs:31:26
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let max_score: f64 = Configuration {c:0.0001, d:-1.0001}.evaluate(log.clone());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `make_optimizer` in this scope
[INFO] [stdout]   --> examples/simple.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | make_optimizer! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Configuration`
[INFO] [stdout]   --> examples/more_complex.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let config = Configuration::random_search(N_SAMPLES, log.clone());
[INFO] [stdout]    |                      ^^^^^^^^^^^^^ use of undeclared type `Configuration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Configuration`
[INFO] [stdout]   --> examples/simple.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let config = Configuration::random_search(10, log.clone());
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ use of undeclared type `Configuration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Configuration`
[INFO] [stdout]   --> examples/simple.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let config = Configuration::bayesian_search(3, 10, log.clone());
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ use of undeclared type `Configuration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Configuration`
[INFO] [stdout]   --> examples/more_complex.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let config = Configuration::bayesian_search(2, N_SAMPLES - 2, log.clone());
[INFO] [stdout]    |                      ^^^^^^^^^^^^^ use of undeclared type `Configuration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0433, E0463.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blackbox` (example "simple") due to 4 previous errors
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `blackbox` (example "more_complex") due to 5 previous errors
[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]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `N`
[INFO] [stdout]    |
[INFO] [stdout] 34 -         for i in 0..N {
[INFO] [stdout] 34 +         for bayesian::GPSurrogate::<T>::maximize::N in 0..N {
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 34 |         for _i in 0..N {
[INFO] [stdout]    |             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `domains` is never read
[INFO] [stdout]   --> src/bayesian.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct CustomSquaredExp {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 72 |     domains: Vec<Variable>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df55f03492170b6086e2469fe47c1e79583b57f3256de680ca81a12d9fd81e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df55f03492170b6086e2469fe47c1e79583b57f3256de680ca81a12d9fd81e2d", kill_on_drop: false }`
[INFO] [stdout] df55f03492170b6086e2469fe47c1e79583b57f3256de680ca81a12d9fd81e2d