[INFO] fetching crate feature-check 1.0.1...
[INFO] testing feature-check-1.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate feature-check 1.0.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate feature-check 1.0.1 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 feature-check 1.0.1
[INFO] finished tweaking crates.io crate feature-check 1.0.1
[INFO] tweaked toml for crates.io crate feature-check 1.0.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate feature-check 1.0.1 already has a lockfile, it will not be regenerated
[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-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" "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] 2a40636fe613de5b4c6de42faadaf9eb006eba5049f94b92e577f4664188abef
[INFO] running `Command { std: "docker" "start" "-a" "2a40636fe613de5b4c6de42faadaf9eb006eba5049f94b92e577f4664188abef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a40636fe613de5b4c6de42faadaf9eb006eba5049f94b92e577f4664188abef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a40636fe613de5b4c6de42faadaf9eb006eba5049f94b92e577f4664188abef", kill_on_drop: false }`
[INFO] [stdout] 2a40636fe613de5b4c6de42faadaf9eb006eba5049f94b92e577f4664188abef
[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=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] 9cba08e7b8769735730f4651e757a6f132f5588d24bd02c04747d4a7653c60fa
[INFO] running `Command { std: "docker" "start" "-a" "9cba08e7b8769735730f4651e757a6f132f5588d24bd02c04747d4a7653c60fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling expect-exit v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling feature-check v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `Command { std: "docker" "inspect" "9cba08e7b8769735730f4651e757a6f132f5588d24bd02c04747d4a7653c60fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cba08e7b8769735730f4651e757a6f132f5588d24bd02c04747d4a7653c60fa", kill_on_drop: false }`
[INFO] [stdout] 9cba08e7b8769735730f4651e757a6f132f5588d24bd02c04747d4a7653c60fa
[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=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] ebb7961efa5af7e91e0b57675ec59965c3c1a47194834e6470e9a3fa51afa7d9
[INFO] running `Command { std: "docker" "start" "-a" "ebb7961efa5af7e91e0b57675ec59965c3c1a47194834e6470e9a3fa51afa7d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling feature-check v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "ebb7961efa5af7e91e0b57675ec59965c3c1a47194834e6470e9a3fa51afa7d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb7961efa5af7e91e0b57675ec59965c3c1a47194834e6470e9a3fa51afa7d9", kill_on_drop: false }`
[INFO] [stdout] ebb7961efa5af7e91e0b57675ec59965c3c1a47194834e6470e9a3fa51afa7d9
[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=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", kill_on_drop: false }`
[INFO] [stdout] e5a65977e7bfe8a35598afc7c5a8d0cd996d763e8c353ab7367ef54e010caedf
[INFO] running `Command { std: "docker" "start" "-a" "e5a65977e7bfe8a35598afc7c5a8d0cd996d763e8c353ab7367ef54e010caedf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/feature_check-dd18f22050bc5c8f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/feature_check-a238c374fba85633)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests feature-check
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/version.rs - version (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5a65977e7bfe8a35598afc7c5a8d0cd996d763e8c353ab7367ef54e010caedf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5a65977e7bfe8a35598afc7c5a8d0cd996d763e8c353ab7367ef54e010caedf", kill_on_drop: false }`
[INFO] [stdout] e5a65977e7bfe8a35598afc7c5a8d0cd996d763e8c353ab7367ef54e010caedf