[INFO] fetching crate tm1637-gpio-driver 2.0.4...
[INFO] testing tm1637-gpio-driver-2.0.4 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate tm1637-gpio-driver 2.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tm1637-gpio-driver 2.0.4 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 tm1637-gpio-driver 2.0.4
[INFO] finished tweaking crates.io crate tm1637-gpio-driver 2.0.4
[INFO] tweaked toml for crates.io crate tm1637-gpio-driver 2.0.4 written to /workspace/builds/worker-2/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-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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 509c4433ba47f2423d29ee6542b609e802aeb5d23217b21dfbcc96b0ff7c3413
[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" "509c4433ba47f2423d29ee6542b609e802aeb5d23217b21dfbcc96b0ff7c3413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "509c4433ba47f2423d29ee6542b609e802aeb5d23217b21dfbcc96b0ff7c3413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509c4433ba47f2423d29ee6542b609e802aeb5d23217b21dfbcc96b0ff7c3413", kill_on_drop: false }`
[INFO] [stdout] 509c4433ba47f2423d29ee6542b609e802aeb5d23217b21dfbcc96b0ff7c3413
[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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2236e2b98a09c56021084819d0ce9c45a12d1d57ef4a6fb561a6d24350e745c
[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" "c2236e2b98a09c56021084819d0ce9c45a12d1d57ef4a6fb561a6d24350e745c", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling gpio-cdev v0.3.0
[INFO] [stderr]    Compiling tm1637-gpio-driver v2.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.18s
[INFO] running `Command { std: "docker" "inspect" "c2236e2b98a09c56021084819d0ce9c45a12d1d57ef4a6fb561a6d24350e745c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2236e2b98a09c56021084819d0ce9c45a12d1d57ef4a6fb561a6d24350e745c", kill_on_drop: false }`
[INFO] [stdout] c2236e2b98a09c56021084819d0ce9c45a12d1d57ef4a6fb561a6d24350e745c
[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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a26db03545e3b6ce5f0b4c78e2f743fb87b6e448a3d304e868c835c48e461d0
[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" "0a26db03545e3b6ce5f0b4c78e2f743fb87b6e448a3d304e868c835c48e461d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling tm1637-gpio-driver v2.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::*`
[INFO] [stdout]   --> src/gpio_api/dummy/mod.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     use crate::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/gpio_api/dummy/mod.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let mut f = setup_dummy();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gpio_api/dummy/mod.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let mut f = setup_dummy();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "0a26db03545e3b6ce5f0b4c78e2f743fb87b6e448a3d304e868c835c48e461d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a26db03545e3b6ce5f0b4c78e2f743fb87b6e448a3d304e868c835c48e461d0", kill_on_drop: false }`
[INFO] [stdout] 0a26db03545e3b6ce5f0b4c78e2f743fb87b6e448a3d304e868c835c48e461d0
[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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a3030ff888792f1b9a337b753f9e6a709960b685a0385932f13a7f71e8d03958
[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" "a3030ff888792f1b9a337b753f9e6a709960b685a0385932f13a7f71e8d03958", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::*`
[INFO] [stderr]   --> src/gpio_api/dummy/mod.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     use crate::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/gpio_api/dummy/mod.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut f = setup_dummy();
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/gpio_api/dummy/mod.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut f = setup_dummy();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tm1637_gpio_driver-580b8735fa070321
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test gpio_api::dummy::tests::test ... ok
[INFO] [stdout] test tests::test_encode_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tm1637-gpio-driver
[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" "a3030ff888792f1b9a337b753f9e6a709960b685a0385932f13a7f71e8d03958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3030ff888792f1b9a337b753f9e6a709960b685a0385932f13a7f71e8d03958", kill_on_drop: false }`
[INFO] [stdout] a3030ff888792f1b9a337b753f9e6a709960b685a0385932f13a7f71e8d03958