[INFO] fetching crate ofi-pass 0.3.0...
[INFO] testing ofi-pass-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ofi-pass 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ofi-pass 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ofi-pass 0.3.0
[INFO] finished tweaking crates.io crate ofi-pass 0.3.0
[INFO] tweaked toml for crates.io crate ofi-pass 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate ofi-pass 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mocktopus v0.7.11
[INFO] [stderr]   Downloaded mocktopus_macros v0.7.11
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ca8a9aa22baed1b307ee275071a8691094ee586b737716a3869f6610031b702
[INFO] running `Command { std: "docker" "start" "-a" "8ca8a9aa22baed1b307ee275071a8691094ee586b737716a3869f6610031b702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ca8a9aa22baed1b307ee275071a8691094ee586b737716a3869f6610031b702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca8a9aa22baed1b307ee275071a8691094ee586b737716a3869f6610031b702", kill_on_drop: false }`
[INFO] [stdout] 8ca8a9aa22baed1b307ee275071a8691094ee586b737716a3869f6610031b702
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 928c1a4eb2f25ee57045af12dc488d7a1564bcc9f09e7471175fce19de8d8746
[INFO] running `Command { std: "docker" "start" "-a" "928c1a4eb2f25ee57045af12dc488d7a1564bcc9f09e7471175fce19de8d8746", kill_on_drop: false }`
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling directories v3.0.2
[INFO] [stderr]    Compiling ofi-pass v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "928c1a4eb2f25ee57045af12dc488d7a1564bcc9f09e7471175fce19de8d8746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928c1a4eb2f25ee57045af12dc488d7a1564bcc9f09e7471175fce19de8d8746", kill_on_drop: false }`
[INFO] [stdout] 928c1a4eb2f25ee57045af12dc488d7a1564bcc9f09e7471175fce19de8d8746
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fca710f824f8e54f4f2fe4c69030e1fb62711951744228ae1abb6fe155b61bad
[INFO] running `Command { std: "docker" "start" "-a" "fca710f824f8e54f4f2fe4c69030e1fb62711951744228ae1abb6fe155b61bad", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling mocktopus_macros v0.7.11
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mocktopus_macros-0.7.11/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mocktopus_macros` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fca710f824f8e54f4f2fe4c69030e1fb62711951744228ae1abb6fe155b61bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca710f824f8e54f4f2fe4c69030e1fb62711951744228ae1abb6fe155b61bad", kill_on_drop: false }`
[INFO] [stdout] fca710f824f8e54f4f2fe4c69030e1fb62711951744228ae1abb6fe155b61bad