[INFO] fetching crate better-rs 0.1.7...
[INFO] testing better-rs-0.1.7 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate better-rs 0.1.7 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate better-rs 0.1.7 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f95181d6f3bfbf6f632dbcfc94509afe6f6e076d9d57e778469001ec4153438
[INFO] running `Command { std: "docker" "start" "-a" "5f95181d6f3bfbf6f632dbcfc94509afe6f6e076d9d57e778469001ec4153438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f95181d6f3bfbf6f632dbcfc94509afe6f6e076d9d57e778469001ec4153438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f95181d6f3bfbf6f632dbcfc94509afe6f6e076d9d57e778469001ec4153438", kill_on_drop: false }`
[INFO] [stdout] 5f95181d6f3bfbf6f632dbcfc94509afe6f6e076d9d57e778469001ec4153438
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 496d3435e1d7e0bc4b2dbc5cea9d767f8d3db8fabf630f14db2a6f9708d50b68
[INFO] running `Command { std: "docker" "start" "-a" "496d3435e1d7e0bc4b2dbc5cea9d767f8d3db8fabf630f14db2a6f9708d50b68", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling better-rs v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "496d3435e1d7e0bc4b2dbc5cea9d767f8d3db8fabf630f14db2a6f9708d50b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "496d3435e1d7e0bc4b2dbc5cea9d767f8d3db8fabf630f14db2a6f9708d50b68", kill_on_drop: false }`
[INFO] [stdout] 496d3435e1d7e0bc4b2dbc5cea9d767f8d3db8fabf630f14db2a6f9708d50b68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad68e5d4ddd7493995a7463b2dac4369eaeee14be2517ab75427ef2a8befbbf3
[INFO] running `Command { std: "docker" "start" "-a" "ad68e5d4ddd7493995a7463b2dac4369eaeee14be2517ab75427ef2a8befbbf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling better-rs v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "ad68e5d4ddd7493995a7463b2dac4369eaeee14be2517ab75427ef2a8befbbf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad68e5d4ddd7493995a7463b2dac4369eaeee14be2517ab75427ef2a8befbbf3", kill_on_drop: false }`
[INFO] [stdout] ad68e5d4ddd7493995a7463b2dac4369eaeee14be2517ab75427ef2a8befbbf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] feb53aa9455f4cb3ca7e106933cbcbb055676d1e28b4750ce13fd511d5cc8265
[INFO] running `Command { std: "docker" "start" "-a" "feb53aa9455f4cb3ca7e106933cbcbb055676d1e28b4750ce13fd511d5cc8265", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/better_rs-e46eaf31f3a1d542)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests better-rs
[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/fp/iter.rs - fp::iter::map (line 6) ... FAILED
[INFO] [stdout] test src/math/sets.rs - math::sets::get_tail (line 50) ... FAILED
[INFO] [stdout] test src/math/sets.rs - math::sets::prepend (line 5) ... FAILED
[INFO] [stdout] test src/math/sets.rs - math::sets::permutate (line 18) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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] ---- 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/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::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] 
[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 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "feb53aa9455f4cb3ca7e106933cbcbb055676d1e28b4750ce13fd511d5cc8265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb53aa9455f4cb3ca7e106933cbcbb055676d1e28b4750ce13fd511d5cc8265", kill_on_drop: false }`
[INFO] [stdout] feb53aa9455f4cb3ca7e106933cbcbb055676d1e28b4750ce13fd511d5cc8265