[INFO] fetching crate HorseShoe 0.0.1...
[INFO] testing HorseShoe-0.0.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate HorseShoe 0.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate HorseShoe 0.0.1 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate HorseShoe 0.0.1
[INFO] finished tweaking crates.io crate HorseShoe 0.0.1
[INFO] tweaked toml for crates.io crate HorseShoe 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] a9dd979d9c1dfda9f8448a65f1bdecc808190fec282a432238a4a1df3884be69
[INFO] running `Command { std: "docker" "start" "-a" "a9dd979d9c1dfda9f8448a65f1bdecc808190fec282a432238a4a1df3884be69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9dd979d9c1dfda9f8448a65f1bdecc808190fec282a432238a4a1df3884be69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9dd979d9c1dfda9f8448a65f1bdecc808190fec282a432238a4a1df3884be69", kill_on_drop: false }`
[INFO] [stdout] a9dd979d9c1dfda9f8448a65f1bdecc808190fec282a432238a4a1df3884be69
[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=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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb49fec75b775f7a8b2debc7c383874fe56b63c73404ad20c696003650d56982
[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" "cb49fec75b775f7a8b2debc7c383874fe56b63c73404ad20c696003650d56982", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling HorseShoe v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/numder.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn numder(z: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/numint.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn numint(u: Self, l: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "cb49fec75b775f7a8b2debc7c383874fe56b63c73404ad20c696003650d56982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb49fec75b775f7a8b2debc7c383874fe56b63c73404ad20c696003650d56982", kill_on_drop: false }`
[INFO] [stdout] cb49fec75b775f7a8b2debc7c383874fe56b63c73404ad20c696003650d56982
[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=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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d1828059d7e7583405fd46fcf4f5c0b313eaca38b4ca53b309d9b3b228f1d35
[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" "2d1828059d7e7583405fd46fcf4f5c0b313eaca38b4ca53b309d9b3b228f1d35", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/numder.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn numder(z: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/numint.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn numint(u: Self, l: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling HorseShoe v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/numder.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn numder(z: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/numint.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn numint(u: Self, l: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "2d1828059d7e7583405fd46fcf4f5c0b313eaca38b4ca53b309d9b3b228f1d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d1828059d7e7583405fd46fcf4f5c0b313eaca38b4ca53b309d9b3b228f1d35", kill_on_drop: false }`
[INFO] [stdout] 2d1828059d7e7583405fd46fcf4f5c0b313eaca38b4ca53b309d9b3b228f1d35
[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=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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] e32605cd243a32fbe4abe317e34e909820df6f2398766e714d0aa04b8ac05176
[INFO] running `Command { std: "docker" "start" "-a" "e32605cd243a32fbe4abe317e34e909820df6f2398766e714d0aa04b8ac05176", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/numder.rs:16:28
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 16 |     fn numder(z: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stdout] 
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/numint.rs:41:37
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn numint(u: Self, l: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/numder.rs:16:28
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn numder(z: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/numint.rs:41:37
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn numint(u: Self, l: Self, f: &Fn(Self) -> Self) -> Self {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self) -> Self`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/horseshoe-972b090866444a06
[INFO] [stderr]    Doc-tests horseshoe
[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" "e32605cd243a32fbe4abe317e34e909820df6f2398766e714d0aa04b8ac05176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32605cd243a32fbe4abe317e34e909820df6f2398766e714d0aa04b8ac05176", kill_on_drop: false }`
[INFO] [stdout] e32605cd243a32fbe4abe317e34e909820df6f2398766e714d0aa04b8ac05176