[INFO] fetching crate brack 0.2.0...
[INFO] testing brack-0.2.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate brack 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate brack 0.2.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate brack 0.2.0
[INFO] finished tweaking crates.io crate brack 0.2.0
[INFO] tweaked toml for crates.io crate brack 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate brack 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e43d4c030e80d8f9156f014ab15b59cc6f5b3db4a9c55b3287da4289020974cc
[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" "e43d4c030e80d8f9156f014ab15b59cc6f5b3db4a9c55b3287da4289020974cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e43d4c030e80d8f9156f014ab15b59cc6f5b3db4a9c55b3287da4289020974cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e43d4c030e80d8f9156f014ab15b59cc6f5b3db4a9c55b3287da4289020974cc", kill_on_drop: false }`
[INFO] [stdout] e43d4c030e80d8f9156f014ab15b59cc6f5b3db4a9c55b3287da4289020974cc
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", 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] c3396444bb3d9051825ff06cd60be513d14589d90d3f95f1d5b6e250ee566aae
[INFO] running `Command { std: "docker" "start" "-a" "c3396444bb3d9051825ff06cd60be513d14589d90d3f95f1d5b6e250ee566aae", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling brack v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "c3396444bb3d9051825ff06cd60be513d14589d90d3f95f1d5b6e250ee566aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3396444bb3d9051825ff06cd60be513d14589d90d3f95f1d5b6e250ee566aae", kill_on_drop: false }`
[INFO] [stdout] c3396444bb3d9051825ff06cd60be513d14589d90d3f95f1d5b6e250ee566aae
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", 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] d765b4d5b9d63bfd2cac8fd4f7e183c922dc6aedfebdbbe6b1e5104ffe7339ea
[INFO] running `Command { std: "docker" "start" "-a" "d765b4d5b9d63bfd2cac8fd4f7e183c922dc6aedfebdbbe6b1e5104ffe7339ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling brack v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `assert_matches` in this scope
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         assert_matches!(c, Change::Relative(10.0f32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing one of these items:
[INFO] [stdout]             core::assert_matches::assert_matches
[INFO] [stdout]             std::assert_matches::assert_matches
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `assert_matches` in this scope
[INFO] [stdout]    --> src/main.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |         assert_matches!(c, Change::Relative(-10.0f32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing one of these items:
[INFO] [stdout]             core::assert_matches::assert_matches
[INFO] [stdout]             std::assert_matches::assert_matches
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brack` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d765b4d5b9d63bfd2cac8fd4f7e183c922dc6aedfebdbbe6b1e5104ffe7339ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d765b4d5b9d63bfd2cac8fd4f7e183c922dc6aedfebdbbe6b1e5104ffe7339ea", kill_on_drop: false }`
[INFO] [stdout] d765b4d5b9d63bfd2cac8fd4f7e183c922dc6aedfebdbbe6b1e5104ffe7339ea