[INFO] crate decision_tree 0.1.0 is already in cache
[INFO] testing decision_tree-0.1.0 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate decision_tree 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate decision_tree 0.1.0 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate decision_tree 0.1.0
[INFO] finished tweaking crates.io crate decision_tree 0.1.0
[INFO] tweaked toml for crates.io crate decision_tree 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9740872b4ffd0cf61d0e66e5b1ec8752cd1948b765a4a6e611a0317c482f8edd
[INFO] running `"docker" "start" "-a" "9740872b4ffd0cf61d0e66e5b1ec8752cd1948b765a4a6e611a0317c482f8edd"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling decision_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "9740872b4ffd0cf61d0e66e5b1ec8752cd1948b765a4a6e611a0317c482f8edd"`
[INFO] running `"docker" "rm" "-f" "9740872b4ffd0cf61d0e66e5b1ec8752cd1948b765a4a6e611a0317c482f8edd"`
[INFO] [stdout] 9740872b4ffd0cf61d0e66e5b1ec8752cd1948b765a4a6e611a0317c482f8edd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9bad2455d5ccff1b3cbfbb8158ea41e39aaad95440874b56e28e3992607fc19f
[INFO] running `"docker" "start" "-a" "9bad2455d5ccff1b3cbfbb8158ea41e39aaad95440874b56e28e3992607fc19f"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling decision_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0583]: file not found for module `tree`
[INFO] [stderr]  --> examples/simple_tree.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod tree;
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: to create the module `tree`, create file "examples/tree.rs"
[INFO] [stderr] 
[INFO] [stderr] error[E0583]: file not found for module `node`
[INFO] [stderr]  --> examples/simple_tree.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | mod node;
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: to create the module `node`, create file "examples/node.rs"
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `tree::Tree`
[INFO] [stderr]  --> examples/simple_tree.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | use tree::{Tree};
[INFO] [stderr]   |            ^^^^ no `Tree` in `tree`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0583.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `decision_tree`.
[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" "9bad2455d5ccff1b3cbfbb8158ea41e39aaad95440874b56e28e3992607fc19f"`
[INFO] running `"docker" "rm" "-f" "9bad2455d5ccff1b3cbfbb8158ea41e39aaad95440874b56e28e3992607fc19f"`
[INFO] [stdout] 9bad2455d5ccff1b3cbfbb8158ea41e39aaad95440874b56e28e3992607fc19f