[INFO] fetching crate cases2 0.1.0...
[INFO] checking cases2-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate cases2 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate cases2 0.1.0
[INFO] finished tweaking crates.io crate cases2 0.1.0
[INFO] tweaked toml for crates.io crate cases2 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cases2 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cases2 0.1.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1db175f38a9c4dcd5420aaf567168aaec18af6c6d03b8790ce229932de204db5
[INFO] running `Command { std: "docker" "start" "-a" "1db175f38a9c4dcd5420aaf567168aaec18af6c6d03b8790ce229932de204db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1db175f38a9c4dcd5420aaf567168aaec18af6c6d03b8790ce229932de204db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db175f38a9c4dcd5420aaf567168aaec18af6c6d03b8790ce229932de204db5", kill_on_drop: false }`
[INFO] [stdout] 1db175f38a9c4dcd5420aaf567168aaec18af6c6d03b8790ce229932de204db5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ae8556349fb0155d59954f2f025d5e341bf3fa503e86e50cda548c60b00328e
[INFO] running `Command { std: "docker" "start" "-a" "1ae8556349fb0155d59954f2f025d5e341bf3fa503e86e50cda548c60b00328e", kill_on_drop: false }`
[INFO] [stderr]     Checking cases2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `cases`
[INFO] [stdout]  --> examples/usage.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 |     println!("Snake Case: {}", cases::to_snake_case(sample));
[INFO] [stdout]   |                                ^^^^^ use of unresolved module or unlinked crate `cases`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 5 |     println!("Snake Case: {}", cases2::to_snake_case(sample));
[INFO] [stdout]   |                                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `cases`
[INFO] [stdout]  --> examples/usage.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 |     println!("Camel Case: {}", cases::to_camel_case(sample));
[INFO] [stdout]   |                                ^^^^^ use of unresolved module or unlinked crate `cases`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 6 |     println!("Camel Case: {}", cases2::to_camel_case(sample));
[INFO] [stdout]   |                                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `cases`
[INFO] [stdout]  --> examples/usage.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         cases::to_screaming_snake_case(sample)
[INFO] [stdout]   |         ^^^^^ use of unresolved module or unlinked crate `cases`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 9 |         cases2::to_screaming_snake_case(sample)
[INFO] [stdout]   |              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `cases`
[INFO] [stdout]   --> examples/usage.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 |     println!("Pascal Case: {}", cases::to_pascal_case(sample));
[INFO] [stdout]    |                                 ^^^^^ use of unresolved module or unlinked crate `cases`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 11 |     println!("Pascal Case: {}", cases2::to_pascal_case(sample));
[INFO] [stdout]    |                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cases2` (example "usage") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "1ae8556349fb0155d59954f2f025d5e341bf3fa503e86e50cda548c60b00328e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae8556349fb0155d59954f2f025d5e341bf3fa503e86e50cda548c60b00328e", kill_on_drop: false }`
[INFO] [stdout] 1ae8556349fb0155d59954f2f025d5e341bf3fa503e86e50cda548c60b00328e