[INFO] fetching crate youchoose 0.1.1...
[INFO] testing youchoose-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate youchoose 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate youchoose 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate youchoose 0.1.1
[INFO] finished tweaking crates.io crate youchoose 0.1.1
[INFO] tweaked toml for crates.io crate youchoose 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate youchoose 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3676119c4ce2cfd5371adc0e48f71e12d947dd4a3d71e60ce0370a4fe1778ff1
[INFO] running `Command { std: "docker" "start" "-a" "3676119c4ce2cfd5371adc0e48f71e12d947dd4a3d71e60ce0370a4fe1778ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3676119c4ce2cfd5371adc0e48f71e12d947dd4a3d71e60ce0370a4fe1778ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3676119c4ce2cfd5371adc0e48f71e12d947dd4a3d71e60ce0370a4fe1778ff1", kill_on_drop: false }`
[INFO] [stdout] 3676119c4ce2cfd5371adc0e48f71e12d947dd4a3d71e60ce0370a4fe1778ff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 431461c1a1e5316f1337a05fcbf90bfb91ac2a4c1905226aba60e4768fb5d772
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "431461c1a1e5316f1337a05fcbf90bfb91ac2a4c1905226aba60e4768fb5d772", kill_on_drop: false }`
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling youchoose v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "431461c1a1e5316f1337a05fcbf90bfb91ac2a4c1905226aba60e4768fb5d772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "431461c1a1e5316f1337a05fcbf90bfb91ac2a4c1905226aba60e4768fb5d772", kill_on_drop: false }`
[INFO] [stdout] 431461c1a1e5316f1337a05fcbf90bfb91ac2a4c1905226aba60e4768fb5d772
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d57fc8143727793bf3e1eb6ddd68b6fc0e06fd9df4610d24d23328c9b7ee0ab0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d57fc8143727793bf3e1eb6ddd68b6fc0e06fd9df4610d24d23328c9b7ee0ab0", kill_on_drop: false }`
[INFO] [stderr]    Compiling youchoose v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "d57fc8143727793bf3e1eb6ddd68b6fc0e06fd9df4610d24d23328c9b7ee0ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d57fc8143727793bf3e1eb6ddd68b6fc0e06fd9df4610d24d23328c9b7ee0ab0", kill_on_drop: false }`
[INFO] [stdout] d57fc8143727793bf3e1eb6ddd68b6fc0e06fd9df4610d24d23328c9b7ee0ab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6bf52ec5cee0f3946cf200ce2d66f01c25ff572688f18b17560a6f1dadc4ab3d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6bf52ec5cee0f3946cf200ce2d66f01c25ff572688f18b17560a6f1dadc4ab3d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/youchoose-26d51af82ee398ad)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests youchoose
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 15) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 64) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 36) ... FAILED
[INFO] [stdout] test src/lib.rs - Menu::add_multiselect_key (line 390) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 15) stdout ----
[INFO] [stdout] error[E0254]: the name `youchoose` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:16:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate r#youchoose;
[INFO] [stdout]   | ------------------------- previous import of the extern crate `youchoose` here
[INFO] [stdout] 3 | use youchoose;
[INFO] [stdout]   |     ^^^^^^^^^ `youchoose` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `youchoose` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 64) stdout ----
[INFO] [stdout] error[E0254]: the name `youchoose` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:65:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate r#youchoose;
[INFO] [stdout]   | ------------------------- previous import of the extern crate `youchoose` here
[INFO] [stdout] 3 | use youchoose;
[INFO] [stdout]   |     ^^^^^^^^^ `youchoose` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `youchoose` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:83:27
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn multiples(num: i32) -> String {
[INFO] [stdout]    |    ---------              ^^^^^^ expected struct `String`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0254, E0308.
[INFO] [stdout] For more information about an error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 36) stdout ----
[INFO] [stdout] error[E0254]: the name `youchoose` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:37:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate r#youchoose;
[INFO] [stdout]   | ------------------------- previous import of the extern crate `youchoose` here
[INFO] [stdout] 3 | use youchoose;
[INFO] [stdout]   |     ^^^^^^^^^ `youchoose` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `youchoose` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Menu::add_multiselect_key (line 390) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error opening terminal: unknown.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 15)
[INFO] [stdout]     src/lib.rs - (line 36)
[INFO] [stdout]     src/lib.rs - (line 64)
[INFO] [stdout]     src/lib.rs - Menu::add_multiselect_key (line 390)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "6bf52ec5cee0f3946cf200ce2d66f01c25ff572688f18b17560a6f1dadc4ab3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf52ec5cee0f3946cf200ce2d66f01c25ff572688f18b17560a6f1dadc4ab3d", kill_on_drop: false }`
[INFO] [stdout] 6bf52ec5cee0f3946cf200ce2d66f01c25ff572688f18b17560a6f1dadc4ab3d