[INFO] fetching crate better-rs 0.1.7...
[INFO] testing better-rs-0.1.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate better-rs 0.1.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate better-rs 0.1.7 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 better-rs 0.1.7
[INFO] finished tweaking crates.io crate better-rs 0.1.7
[INFO] tweaked toml for crates.io crate better-rs 0.1.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] [stdout] c87ce39127a3f1133ae68a470f50a38e902e53fe3f700b875b4986beba436862
[INFO] running `Command { std: "docker" "start" "-a" "c87ce39127a3f1133ae68a470f50a38e902e53fe3f700b875b4986beba436862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c87ce39127a3f1133ae68a470f50a38e902e53fe3f700b875b4986beba436862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c87ce39127a3f1133ae68a470f50a38e902e53fe3f700b875b4986beba436862", kill_on_drop: false }`
[INFO] [stdout] c87ce39127a3f1133ae68a470f50a38e902e53fe3f700b875b4986beba436862
[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] 59dbae1924ef7c2a796e15655e098469782671c299a38f2d8afecc3f503053e7
[INFO] running `Command { std: "docker" "start" "-a" "59dbae1924ef7c2a796e15655e098469782671c299a38f2d8afecc3f503053e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling better-rs v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "59dbae1924ef7c2a796e15655e098469782671c299a38f2d8afecc3f503053e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59dbae1924ef7c2a796e15655e098469782671c299a38f2d8afecc3f503053e7", kill_on_drop: false }`
[INFO] [stdout] 59dbae1924ef7c2a796e15655e098469782671c299a38f2d8afecc3f503053e7
[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] 2b4ad28a2d8272dfa93d5ab41e7b6175765a50fa743c80ec688a2a0dd089b148
[INFO] running `Command { std: "docker" "start" "-a" "2b4ad28a2d8272dfa93d5ab41e7b6175765a50fa743c80ec688a2a0dd089b148", kill_on_drop: false }`
[INFO] [stderr]    Compiling better-rs v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "2b4ad28a2d8272dfa93d5ab41e7b6175765a50fa743c80ec688a2a0dd089b148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4ad28a2d8272dfa93d5ab41e7b6175765a50fa743c80ec688a2a0dd089b148", kill_on_drop: false }`
[INFO] [stdout] 2b4ad28a2d8272dfa93d5ab41e7b6175765a50fa743c80ec688a2a0dd089b148
[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] 1be7c02a9cf2a7d85fe03f926fb425770405bf364f8bd9f8048374bd6b439fd8
[INFO] running `Command { std: "docker" "start" "-a" "1be7c02a9cf2a7d85fe03f926fb425770405bf364f8bd9f8048374bd6b439fd8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/better_rs-71affb6536ca972c)
[INFO] [stdout] 
[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] [stderr]    Doc-tests better-rs
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/math/sets.rs - math::sets::permutate (line 18) ... FAILED
[INFO] [stdout] test src/math/sets.rs - math::sets::prepend (line 5) ... FAILED
[INFO] [stdout] test src/math/sets.rs - math::sets::get_tail (line 50) ... FAILED
[INFO] [stdout] test src/fp/iter.rs - fp::iter::map (line 6) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/math/sets.rs - math::sets::permutate (line 18) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `permutate` in this scope
[INFO] [stdout]  --> src/math/sets.rs:19:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | println!("{:?}", permutate(&vec![1,2,3]));
[INFO] [stdout]   |                  ^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 2 | use better_rs::math::sets::permutate;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/math/sets.rs - math::sets::prepend (line 5) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `prepend` in this scope
[INFO] [stdout]  --> src/math/sets.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | assert_eq!(prepend(1, vec![2,3]), vec![1,2,3]);
[INFO] [stdout]   |            ^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 2 | use better_rs::math::sets::prepend;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/math/sets.rs - math::sets::get_tail (line 50) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `get_tail` in this scope
[INFO] [stdout]  --> src/math/sets.rs:51:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | assert_eq!(get_tail(vec![1,2,3]), vec![2,3]);
[INFO] [stdout]   |            ^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 2 | use better_rs::math::sets::get_tail;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/fp/iter.rs - fp::iter::map (line 6) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `map` in this scope
[INFO] [stdout]  --> src/fp/iter.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | assert_eq!(map(f, v), vec![2,4,6]);
[INFO] [stdout]   |            ^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 2 | use better_rs::fp::iter::map;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/fp/iter.rs - fp::iter::map (line 6)
[INFO] [stdout]     src/math/sets.rs - math::sets::get_tail (line 50)
[INFO] [stdout]     src/math/sets.rs - math::sets::permutate (line 18)
[INFO] [stdout]     src/math/sets.rs - math::sets::prepend (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "1be7c02a9cf2a7d85fe03f926fb425770405bf364f8bd9f8048374bd6b439fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be7c02a9cf2a7d85fe03f926fb425770405bf364f8bd9f8048374bd6b439fd8", kill_on_drop: false }`
[INFO] [stdout] 1be7c02a9cf2a7d85fe03f926fb425770405bf364f8bd9f8048374bd6b439fd8