[INFO] fetching crate callback 0.5.3...
[INFO] testing callback-0.5.3 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate callback 0.5.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate callback 0.5.3 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate callback 0.5.3
[INFO] finished tweaking crates.io crate callback 0.5.3
[INFO] tweaked toml for crates.io crate callback 0.5.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86c5bb8a26d3092165dc31a2b9bc0b029c003f9a87620d30fd51e7adb7d24534
[INFO] running `Command { std: "docker" "start" "-a" "86c5bb8a26d3092165dc31a2b9bc0b029c003f9a87620d30fd51e7adb7d24534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86c5bb8a26d3092165dc31a2b9bc0b029c003f9a87620d30fd51e7adb7d24534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c5bb8a26d3092165dc31a2b9bc0b029c003f9a87620d30fd51e7adb7d24534", kill_on_drop: false }`
[INFO] [stdout] 86c5bb8a26d3092165dc31a2b9bc0b029c003f9a87620d30fd51e7adb7d24534
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9f832c54764777a555bd0441f617bc6353dd159f0eec2312b7bd0a27cf9030b
[INFO] running `Command { std: "docker" "start" "-a" "f9f832c54764777a555bd0441f617bc6353dd159f0eec2312b7bd0a27cf9030b", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling callback v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "f9f832c54764777a555bd0441f617bc6353dd159f0eec2312b7bd0a27cf9030b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f832c54764777a555bd0441f617bc6353dd159f0eec2312b7bd0a27cf9030b", kill_on_drop: false }`
[INFO] [stdout] f9f832c54764777a555bd0441f617bc6353dd159f0eec2312b7bd0a27cf9030b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bba4e304b6201def4ef6ac977453cfabb2f2aecb759d43516e5ac718c5035d9
[INFO] running `Command { std: "docker" "start" "-a" "9bba4e304b6201def4ef6ac977453cfabb2f2aecb759d43516e5ac718c5035d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling callback v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/callback-509a1705f5867e9e)
[INFO] running `Command { std: "docker" "inspect" "9bba4e304b6201def4ef6ac977453cfabb2f2aecb759d43516e5ac718c5035d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bba4e304b6201def4ef6ac977453cfabb2f2aecb759d43516e5ac718c5035d9", kill_on_drop: false }`
[INFO] [stdout] 9bba4e304b6201def4ef6ac977453cfabb2f2aecb759d43516e5ac718c5035d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c13d5785f0e86fc0f6f82bc08592603332fe3a55ebbf0cec068fdb00f82f8b3f
[INFO] running `Command { std: "docker" "start" "-a" "c13d5785f0e86fc0f6f82bc08592603332fe3a55ebbf0cec068fdb00f82f8b3f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/callback-509a1705f5867e9e)
[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 callback
[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] running `Command { std: "docker" "inspect" "c13d5785f0e86fc0f6f82bc08592603332fe3a55ebbf0cec068fdb00f82f8b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c13d5785f0e86fc0f6f82bc08592603332fe3a55ebbf0cec068fdb00f82f8b3f", kill_on_drop: false }`
[INFO] [stdout] c13d5785f0e86fc0f6f82bc08592603332fe3a55ebbf0cec068fdb00f82f8b3f