[INFO] fetching crate dogged 0.2.0...
[INFO] testing dogged-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate dogged 0.2.0 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate dogged 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dogged 0.2.0
[INFO] finished tweaking crates.io crate dogged 0.2.0
[INFO] tweaked toml for crates.io crate dogged 0.2.0 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 675d1de095816a87ddff17ec3b2a10e63dd89a144787e40060e74a88c6e74721
[INFO] running `Command { std: "docker" "start" "-a" "675d1de095816a87ddff17ec3b2a10e63dd89a144787e40060e74a88c6e74721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "675d1de095816a87ddff17ec3b2a10e63dd89a144787e40060e74a88c6e74721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675d1de095816a87ddff17ec3b2a10e63dd89a144787e40060e74a88c6e74721", kill_on_drop: false }`
[INFO] [stdout] 675d1de095816a87ddff17ec3b2a10e63dd89a144787e40060e74a88c6e74721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c925b8589e07afd586f83a2027baed2d52bdd3c4953cccb38d45965bfdf0e8d8
[INFO] running `Command { std: "docker" "start" "-a" "c925b8589e07afd586f83a2027baed2d52bdd3c4953cccb38d45965bfdf0e8d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling dogged v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.55s
[INFO] running `Command { std: "docker" "inspect" "c925b8589e07afd586f83a2027baed2d52bdd3c4953cccb38d45965bfdf0e8d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c925b8589e07afd586f83a2027baed2d52bdd3c4953cccb38d45965bfdf0e8d8", kill_on_drop: false }`
[INFO] [stdout] c925b8589e07afd586f83a2027baed2d52bdd3c4953cccb38d45965bfdf0e8d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b60ef2a0e5ab391a0e691e9c5b9604a6fb57aadb3c4ada5612087536087c1d5
[INFO] running `Command { std: "docker" "start" "-a" "6b60ef2a0e5ab391a0e691e9c5b9604a6fb57aadb3c4ada5612087536087c1d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling dogged v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[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 `dogged` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6b60ef2a0e5ab391a0e691e9c5b9604a6fb57aadb3c4ada5612087536087c1d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b60ef2a0e5ab391a0e691e9c5b9604a6fb57aadb3c4ada5612087536087c1d5", kill_on_drop: false }`
[INFO] [stdout] 6b60ef2a0e5ab391a0e691e9c5b9604a6fb57aadb3c4ada5612087536087c1d5