[INFO] fetching crate ckb-rational 0.38.0...
[INFO] testing ckb-rational-0.38.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ckb-rational 0.38.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ckb-rational 0.38.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-rational 0.38.0
[INFO] finished tweaking crates.io crate ckb-rational 0.38.0
[INFO] tweaked toml for crates.io crate ckb-rational 0.38.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9839b60db270e1cf7dde0b0baeecccf54707f08c4ed6a32ad35c3df44b460a50
[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" "9839b60db270e1cf7dde0b0baeecccf54707f08c4ed6a32ad35c3df44b460a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9839b60db270e1cf7dde0b0baeecccf54707f08c4ed6a32ad35c3df44b460a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9839b60db270e1cf7dde0b0baeecccf54707f08c4ed6a32ad35c3df44b460a50", kill_on_drop: false }`
[INFO] [stdout] 9839b60db270e1cf7dde0b0baeecccf54707f08c4ed6a32ad35c3df44b460a50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16463fbb4cfabd10e724a967da75a364c8b579851f72997a9cd79040862881e6
[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" "16463fbb4cfabd10e724a967da75a364c8b579851f72997a9cd79040862881e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling numext-constructor v0.1.6
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling numext-fixed-uint-core v0.1.6
[INFO] [stderr]    Compiling numext-fixed-uint-hack v0.1.6
[INFO] [stderr]    Compiling numext-fixed-uint v0.1.6
[INFO] [stderr]    Compiling ckb-rational v0.38.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.06s
[INFO] running `Command { std: "docker" "inspect" "16463fbb4cfabd10e724a967da75a364c8b579851f72997a9cd79040862881e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16463fbb4cfabd10e724a967da75a364c8b579851f72997a9cd79040862881e6", kill_on_drop: false }`
[INFO] [stdout] 16463fbb4cfabd10e724a967da75a364c8b579851f72997a9cd79040862881e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 350db94a2be18165e7a95d965780c4a06310b6eefe81b3bcb208a7007edaeff2
[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" "350db94a2be18165e7a95d965780c4a06310b6eefe81b3bcb208a7007edaeff2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ckb-rational v0.38.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proptest`
[INFO] [stdout]  --> src/tests.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use proptest::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared crate or module `proptest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proptest`
[INFO] [stdout]  --> src/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proptest::arbitrary::Arbitrary;
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared crate or module `proptest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proptest`
[INFO] [stdout]  --> src/tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use proptest::strategy::{NewTree, Strategy, ValueTree};
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared crate or module `proptest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proptest`
[INFO] [stdout]  --> src/tests.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use proptest::test_runner::{TestRng, TestRunner};
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared crate or module `proptest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `proptest::arbitrary::Arbitrary`, `proptest::strategy::NewTree`, `proptest::strategy::Strategy`, `proptest::strategy::ValueTree`, `proptest::test_runner::TestRng`, `proptest::test_runner::TestRunner`
[INFO] [stdout]  --> src/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proptest::arbitrary::Arbitrary;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use proptest::prelude::*;
[INFO] [stdout] 5 | use proptest::strategy::{NewTree, Strategy, ValueTree};
[INFO] [stdout]   |                          ^^^^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 6 | use proptest::test_runner::{TestRng, TestRunner};
[INFO] [stdout]   |                             ^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]    --> src/tests.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | proptest! {
[INFO] [stdout]     | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]    --> src/tests.rs:234:1
[INFO] [stdout]     |
[INFO] [stdout] 234 | proptest! {
[INFO] [stdout]     | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]    --> src/tests.rs:254:1
[INFO] [stdout]     |
[INFO] [stdout] 254 | proptest! {
[INFO] [stdout]     | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]    --> src/tests.rs:274:1
[INFO] [stdout]     |
[INFO] [stdout] 274 | proptest! {
[INFO] [stdout]     | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]    --> src/tests.rs:297:1
[INFO] [stdout]     |
[INFO] [stdout] 297 | proptest! {
[INFO] [stdout]     | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TestRng` in this scope
[INFO] [stdout]   --> src/tests.rs:14:30
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn nonzero(rng: &mut TestRng) -> Self {
[INFO] [stdout]    |                              ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TestRunner` in this scope
[INFO] [stdout]   --> src/tests.rs:66:29
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn new(runner: &mut TestRunner) -> Self {
[INFO] [stdout]    |                             ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `ValueTree` in this scope
[INFO] [stdout]   --> src/tests.rs:79:6
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl ValueTree for U256LeBytesValueTree {
[INFO] [stdout]    |      ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Strategy` in this scope
[INFO] [stdout]    --> src/tests.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl Strategy for U256LeBytesStrategy {
[INFO] [stdout]     |      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TestRunner` in this scope
[INFO] [stdout]    --> src/tests.rs:119:37
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn new_tree(&self, runner: &mut TestRunner) -> NewTree<Self> {
[INFO] [stdout]     |                                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NewTree` in this scope
[INFO] [stdout]    --> src/tests.rs:119:52
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn new_tree(&self, runner: &mut TestRunner) -> NewTree<Self> {
[INFO] [stdout]     |                                                    ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Arbitrary` in this scope
[INFO] [stdout]    --> src/tests.rs:127:6
[INFO] [stdout]     |
[INFO] [stdout] 127 | impl Arbitrary for U256LeBytes {
[INFO] [stdout]     |      ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 17 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ckb-rational`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "350db94a2be18165e7a95d965780c4a06310b6eefe81b3bcb208a7007edaeff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "350db94a2be18165e7a95d965780c4a06310b6eefe81b3bcb208a7007edaeff2", kill_on_drop: false }`
[INFO] [stdout] 350db94a2be18165e7a95d965780c4a06310b6eefe81b3bcb208a7007edaeff2