[INFO] fetching crate evitable 0.5.0...
[INFO] checking evitable-0.5.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate evitable 0.5.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate evitable 0.5.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate evitable 0.5.0
[INFO] finished tweaking crates.io crate evitable 0.5.0
[INFO] tweaked toml for crates.io crate evitable 0.5.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded evitable-derive v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 008466f0e323c16d6e98a05d13ccbe9d46fb3ee5b8b695144e842a473c842071
[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" "008466f0e323c16d6e98a05d13ccbe9d46fb3ee5b8b695144e842a473c842071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "008466f0e323c16d6e98a05d13ccbe9d46fb3ee5b8b695144e842a473c842071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008466f0e323c16d6e98a05d13ccbe9d46fb3ee5b8b695144e842a473c842071", kill_on_drop: false }`
[INFO] [stdout] 008466f0e323c16d6e98a05d13ccbe9d46fb3ee5b8b695144e842a473c842071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ff2faf7086c1a4f3bbb8ed0d8e36fa5276a0299dec1aad7956230fc16b8fca6
[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" "1ff2faf7086c1a4f3bbb8ed0d8e36fa5276a0299dec1aad7956230fc16b8fca6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling evitable-syn-meta-ext v0.5.0
[INFO] [stderr]    Compiling evitable-derive-core v0.5.0
[INFO] [stderr]    Compiling evitable-derive v0.5.0
[INFO] [stderr]     Checking evitable v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> tests/macros.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fail!(Context::Io);
[INFO] [stdout]    |     ------------------- any code following this expression is unreachable
[INFO] [stdout] 27 | 
[INFO] [stdout] 28 |     Ok(())
[INFO] [stdout]    |     ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_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 25.41s
[INFO] running `Command { std: "docker" "inspect" "1ff2faf7086c1a4f3bbb8ed0d8e36fa5276a0299dec1aad7956230fc16b8fca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff2faf7086c1a4f3bbb8ed0d8e36fa5276a0299dec1aad7956230fc16b8fca6", kill_on_drop: false }`
[INFO] [stdout] 1ff2faf7086c1a4f3bbb8ed0d8e36fa5276a0299dec1aad7956230fc16b8fca6