[INFO] fetching crate test-better-core 0.2.2...
[INFO] testing test-better-core-0.2.2 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate test-better-core 0.2.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate test-better-core 0.2.2
[INFO] finished tweaking crates.io crate test-better-core 0.2.2
[INFO] tweaked toml for crates.io crate test-better-core 0.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate test-better-core 0.2.2 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate test-better-core 0.2.2 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea
[INFO] running `Command { std: "docker" "start" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-better-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-better-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `test_better_matchers`
[INFO] [stdout]   --> src/color.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     use test_better_matchers::{check, eq, is_false, is_true};
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_better_matchers`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `test_better_matchers`, use `cargo add test_better_matchers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_better_matchers`
[INFO] [stdout]    --> src/context.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     use test_better_matchers::{check, eq, is_true};
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_better_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_better_matchers`, use `cargo add test_better_matchers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_better_matchers`
[INFO] [stdout]    --> src/error.rs:275:9
[INFO] [stdout]     |
[INFO] [stdout] 275 |     use test_better_matchers::{check, eq, is_true};
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_better_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_better_matchers`, use `cargo add test_better_matchers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_better_matchers`
[INFO] [stdout]   --> src/or_fail.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     use test_better_matchers::{check, eq, is_true};
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_better_matchers`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `test_better_matchers`, use `cargo add test_better_matchers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_better_matchers`
[INFO] [stdout]    --> src/render.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |     use test_better_matchers::{check, is_false, is_true};
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_better_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_better_matchers`, use `cargo add test_better_matchers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_better_matchers`
[INFO] [stdout]    --> src/structured.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     use test_better_matchers::{check, eq, is_true};
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_better_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_better_matchers`, use `cargo add test_better_matchers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_better_matchers`
[INFO] [stdout]    --> src/trace.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |     use test_better_matchers::{check, eq, is_true};
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_better_matchers`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_better_matchers`, use `cargo add test_better_matchers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-better-core` (lib test) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea", kill_on_drop: false }`
[INFO] [stdout] eb227378fa3ee35c5530f070b4ce6ca675bf646f2caea7ebbb61803464efcbea
