[INFO] fetching crate monarch 0.1.0...
[INFO] testing monarch-0.1.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate monarch 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate monarch 0.1.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monarch 0.1.0
[INFO] finished tweaking crates.io crate monarch 0.1.0
[INFO] tweaked toml for crates.io crate monarch 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef82d94d039a9980d7c26b8fe706c5393df68d1abedca21e7b96d79d9de8065e
[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" "ef82d94d039a9980d7c26b8fe706c5393df68d1abedca21e7b96d79d9de8065e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef82d94d039a9980d7c26b8fe706c5393df68d1abedca21e7b96d79d9de8065e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef82d94d039a9980d7c26b8fe706c5393df68d1abedca21e7b96d79d9de8065e", kill_on_drop: false }`
[INFO] [stdout] ef82d94d039a9980d7c26b8fe706c5393df68d1abedca21e7b96d79d9de8065e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be6379862f070069a67e1152da534352dab3405e29c0427b2728a8b1c7dee8e8
[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" "be6379862f070069a67e1152da534352dab3405e29c0427b2728a8b1c7dee8e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling monarch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `message`
[INFO] [stdout]   --> src/runner.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn message(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "be6379862f070069a67e1152da534352dab3405e29c0427b2728a8b1c7dee8e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6379862f070069a67e1152da534352dab3405e29c0427b2728a8b1c7dee8e8", kill_on_drop: false }`
[INFO] [stdout] be6379862f070069a67e1152da534352dab3405e29c0427b2728a8b1c7dee8e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1c943b0a7e55534d1ab3f0b109f63a72901788425aeb02148ac2bb8a1f689e8
[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" "b1c943b0a7e55534d1ab3f0b109f63a72901788425aeb02148ac2bb8a1f689e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stdout] warning: associated function is never used: `message`
[INFO] [stdout]   --> src/runner.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn message(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling proptest v0.9.6
[INFO] [stderr]    Compiling monarch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `orig`
[INFO] [stdout]    --> src/runner.rs:409:31
[INFO] [stdout]     |
[INFO] [stdout] 409 |         runner.set_relation(|&orig, &trans| {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `message`
[INFO] [stdout]   --> src/runner.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn message(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 36.69s
[INFO] running `Command { std: "docker" "inspect" "b1c943b0a7e55534d1ab3f0b109f63a72901788425aeb02148ac2bb8a1f689e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c943b0a7e55534d1ab3f0b109f63a72901788425aeb02148ac2bb8a1f689e8", kill_on_drop: false }`
[INFO] [stdout] b1c943b0a7e55534d1ab3f0b109f63a72901788425aeb02148ac2bb8a1f689e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", 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] 133fc166392c59fa825351cf0cdfe9c984bfa886dcc9db68fb7132b1851611b2
[INFO] running `Command { std: "docker" "start" "-a" "133fc166392c59fa825351cf0cdfe9c984bfa886dcc9db68fb7132b1851611b2", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `message`
[INFO] [stderr]   --> src/runner.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn message(&self) -> String {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `orig`
[INFO] [stderr]    --> src/runner.rs:409:31
[INFO] [stderr]     |
[INFO] [stderr] 409 |         runner.set_relation(|&orig, &trans| {
[INFO] [stderr]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `message`
[INFO] [stderr]   --> src/runner.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn message(&self) -> String {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/monarch-1669bac06ee246d4
[INFO] [stdout] running 13 tests
[INFO] [stdout] test runner::tests::it_errors_when_operation_is_missing ... ok
[INFO] [stdout] test runner::tests::it_completes_basic_test ... ok
[INFO] [stdout] test runner::tests::it_errors_when_relation_is_missing ... ok
[INFO] [stdout] test runner::tests::it_errors_when_transformations_are_missing ... ok
[INFO] [stdout] test runner::tests::it_errors_when_input_is_missing ... ok
[INFO] [stdout] test runner::tests::error_when_list_is_empty ... ok
[INFO] [stdout] test runner::tests::error_when_k_is_zero ... ok
[INFO] [stdout] test runner::tests::correctly_identifies_final_index_positions ... ok
[INFO] [stdout] test runner::tests::error_when_k_too_large ... ok
[INFO] [stdout] test runner::tests::catches_test_failure ... ok
[INFO] [stdout] test runner::tests::combinations_are_applied ... ok
[INFO] [stdout] test runner::tests::correctly_identifies_nonfinal_index_positions ... ok
[INFO] [stderr]    Doc-tests monarch
[INFO] [stdout] test runner::tests::correct_num_combinations_produced ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "133fc166392c59fa825351cf0cdfe9c984bfa886dcc9db68fb7132b1851611b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "133fc166392c59fa825351cf0cdfe9c984bfa886dcc9db68fb7132b1851611b2", kill_on_drop: false }`
[INFO] [stdout] 133fc166392c59fa825351cf0cdfe9c984bfa886dcc9db68fb7132b1851611b2