[INFO] crate amplify 0.1.8 is already in cache
[INFO] testing amplify-0.1.8 against 1.45.2 for beta-1.46-1
[INFO] extracting crate amplify 0.1.8 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate amplify 0.1.8 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amplify 0.1.8
[INFO] finished tweaking crates.io crate amplify 0.1.8
[INFO] tweaked toml for crates.io crate amplify 0.1.8 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67d1b23712844bd31ecf72169a6b0c1d88400d359707f31deaf5e803c6351bea
[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" "67d1b23712844bd31ecf72169a6b0c1d88400d359707f31deaf5e803c6351bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67d1b23712844bd31ecf72169a6b0c1d88400d359707f31deaf5e803c6351bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d1b23712844bd31ecf72169a6b0c1d88400d359707f31deaf5e803c6351bea", kill_on_drop: false }`
[INFO] [stdout] 67d1b23712844bd31ecf72169a6b0c1d88400d359707f31deaf5e803c6351bea
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5e9cfd6cf4b883f278b7137ca0909b1afe0adb7f03deb753eae63ef297f66c6
[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" "d5e9cfd6cf4b883f278b7137ca0909b1afe0adb7f03deb753eae63ef297f66c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.37
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling amplify v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.35s
[INFO] running `Command { std: "docker" "inspect" "d5e9cfd6cf4b883f278b7137ca0909b1afe0adb7f03deb753eae63ef297f66c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e9cfd6cf4b883f278b7137ca0909b1afe0adb7f03deb753eae63ef297f66c6", kill_on_drop: false }`
[INFO] [stdout] d5e9cfd6cf4b883f278b7137ca0909b1afe0adb7f03deb753eae63ef297f66c6
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0cfbc3871033e6459d0460ddecc2a8d36224a3270b59ef9881500c2f474cdb
[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" "6a0cfbc3871033e6459d0460ddecc2a8d36224a3270b59ef9881500c2f474cdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling amplify v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `unwrapped`
[INFO] [stdout]    --> src/macros.rs:20:13
[INFO] [stdout]     |
[INFO] [stdout] 20  |         let $var = if let Some($var) = $option {
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_unwrapped`
[INFO] [stdout] ...
[INFO] [stdout] 129 |         guard! { let unwrapped = opt else { assert!(false) } }
[INFO] [stdout]     |         ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_guard`
[INFO] [stdout]    --> src/macros.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn test_guard() {
[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 0.75s
[INFO] running `Command { std: "docker" "inspect" "6a0cfbc3871033e6459d0460ddecc2a8d36224a3270b59ef9881500c2f474cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0cfbc3871033e6459d0460ddecc2a8d36224a3270b59ef9881500c2f474cdb", kill_on_drop: false }`
[INFO] [stdout] 6a0cfbc3871033e6459d0460ddecc2a8d36224a3270b59ef9881500c2f474cdb
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ea0ec242960c32325f77518e4ea7b233d8b6cbf7f7c4b19492f2ef6eb1e04a0d
[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" "ea0ec242960c32325f77518e4ea7b233d8b6cbf7f7c4b19492f2ef6eb1e04a0d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `unwrapped`
[INFO] [stderr]    --> src/macros.rs:20:13
[INFO] [stderr]     |
[INFO] [stderr] 20  |         let $var = if let Some($var) = $option {
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_unwrapped`
[INFO] [stderr] ...
[INFO] [stderr] 129 |         guard! { let unwrapped = opt else { assert!(false) } }
[INFO] [stderr]     |         ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_guard`
[INFO] [stderr]    --> src/macros.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn test_guard() {
[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 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/amplify-907697dad0149194
[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] [stderr]    Doc-tests amplify
[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" "ea0ec242960c32325f77518e4ea7b233d8b6cbf7f7c4b19492f2ef6eb1e04a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0ec242960c32325f77518e4ea7b233d8b6cbf7f7c4b19492f2ef6eb1e04a0d", kill_on_drop: false }`
[INFO] [stdout] ea0ec242960c32325f77518e4ea7b233d8b6cbf7f7c4b19492f2ef6eb1e04a0d