[INFO] fetching crate macchanger 0.4.0...
[INFO] checking macchanger-0.4.0 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate macchanger 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate macchanger 0.4.0 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.5.21)
[INFO] [stderr]       Adding colored v1.9.4 (available: v2.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded netdevice v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3500303fd9335f1df87982cb45633c4dbe0ddffba9a6cc30d0c4c143b6aff7a
[INFO] running `Command { std: "docker" "start" "-a" "c3500303fd9335f1df87982cb45633c4dbe0ddffba9a6cc30d0c4c143b6aff7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3500303fd9335f1df87982cb45633c4dbe0ddffba9a6cc30d0c4c143b6aff7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3500303fd9335f1df87982cb45633c4dbe0ddffba9a6cc30d0c4c143b6aff7a", kill_on_drop: false }`
[INFO] [stdout] c3500303fd9335f1df87982cb45633c4dbe0ddffba9a6cc30d0c4c143b6aff7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0674f0b7e2a467152a8decb2ec02226ad16a7a247af79986d7060321f8e5c489
[INFO] running `Command { std: "docker" "start" "-a" "0674f0b7e2a467152a8decb2ec02226ad16a7a247af79986d7060321f8e5c489", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stderr]     Checking netdevice v0.1.1
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking macchanger v0.4.0 (/opt/rustwide/workdir)
[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] 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] [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
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `macchanger` (bin "macchanger" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0674f0b7e2a467152a8decb2ec02226ad16a7a247af79986d7060321f8e5c489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0674f0b7e2a467152a8decb2ec02226ad16a7a247af79986d7060321f8e5c489", kill_on_drop: false }`
[INFO] [stdout] 0674f0b7e2a467152a8decb2ec02226ad16a7a247af79986d7060321f8e5c489