[INFO] fetching crate macchanger 0.4.0...
[INFO] testing macchanger-0.4.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate macchanger 0.4.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate macchanger 0.4.0
[INFO] finished tweaking crates.io crate macchanger 0.4.0
[INFO] tweaked toml for crates.io crate macchanger 0.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate macchanger 0.4.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.6.0)
[INFO] [stderr]       Adding colored v1.9.4 (available: v3.1.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded colored v1.9.4
[INFO] [stderr]   Downloaded netdevice v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e62fab25612acca95f30ab178d9b7701305f55a4b6c39f64fcd08d26eb2f3d0
[INFO] running `Command { std: "docker" "start" "-a" "9e62fab25612acca95f30ab178d9b7701305f55a4b6c39f64fcd08d26eb2f3d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e62fab25612acca95f30ab178d9b7701305f55a4b6c39f64fcd08d26eb2f3d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e62fab25612acca95f30ab178d9b7701305f55a4b6c39f64fcd08d26eb2f3d0", kill_on_drop: false }`
[INFO] [stdout] 9e62fab25612acca95f30ab178d9b7701305f55a4b6c39f64fcd08d26eb2f3d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2124fe805ff36a4e5d975cc098efe43b16ce38a091ffef5e5d5fa10e302625d3
[INFO] running `Command { std: "docker" "start" "-a" "2124fe805ff36a4e5d975cc098efe43b16ce38a091ffef5e5d5fa10e302625d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling netdevice v0.1.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling macchanger v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `termination_trait_lib` has been stable since 1.61.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/main.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(termination_trait_lib, process_exitcode_placeholder, try_from)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/main.rs:18:65
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(termination_trait_lib, process_exitcode_placeholder, try_from)]
[INFO] [stdout]    |                                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `process_exitcode_placeholder`
[INFO] [stdout]   --> src/main.rs:18:35
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(termination_trait_lib, process_exitcode_placeholder, try_from)]
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `macchanger` (bin "macchanger") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2124fe805ff36a4e5d975cc098efe43b16ce38a091ffef5e5d5fa10e302625d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2124fe805ff36a4e5d975cc098efe43b16ce38a091ffef5e5d5fa10e302625d3", kill_on_drop: false }`
[INFO] [stdout] 2124fe805ff36a4e5d975cc098efe43b16ce38a091ffef5e5d5fa10e302625d3