[INFO] fetching crate leetcoders 0.0.20...
[INFO] testing leetcoders-0.0.20 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate leetcoders 0.0.20 into /workspace/builds/worker-50/source
[INFO] validating manifest of crates.io crate leetcoders 0.0.20 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 leetcoders 0.0.20
[INFO] finished tweaking crates.io crate leetcoders 0.0.20
[INFO] tweaked toml for crates.io crate leetcoders 0.0.20 written to /workspace/builds/worker-50/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] 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-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 655bc432beef9632424d4dcaeae40b506a7ea1e4d6d8082b6d4cb6e968eed561
[INFO] running `Command { std: "docker" "start" "-a" "655bc432beef9632424d4dcaeae40b506a7ea1e4d6d8082b6d4cb6e968eed561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "655bc432beef9632424d4dcaeae40b506a7ea1e4d6d8082b6d4cb6e968eed561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655bc432beef9632424d4dcaeae40b506a7ea1e4d6d8082b6d4cb6e968eed561", kill_on_drop: false }`
[INFO] [stdout] 655bc432beef9632424d4dcaeae40b506a7ea1e4d6d8082b6d4cb6e968eed561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 2f73a999ccb68f514e3b65b3da2d0632dfa201025b0f5c2c60258e433849bcd2
[INFO] running `Command { std: "docker" "start" "-a" "2f73a999ccb68f514e3b65b3da2d0632dfa201025b0f5c2c60258e433849bcd2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling leetcoders v0.0.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "2f73a999ccb68f514e3b65b3da2d0632dfa201025b0f5c2c60258e433849bcd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f73a999ccb68f514e3b65b3da2d0632dfa201025b0f5c2c60258e433849bcd2", kill_on_drop: false }`
[INFO] [stdout] 2f73a999ccb68f514e3b65b3da2d0632dfa201025b0f5c2c60258e433849bcd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 7b8ba9df4d5be71e54d8fa808fdc55bfc785591fb4bdec5c3add56ff89d9b7d1
[INFO] running `Command { std: "docker" "start" "-a" "7b8ba9df4d5be71e54d8fa808fdc55bfc785591fb4bdec5c3add56ff89d9b7d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcoders v0.0.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/leetcoders-ef365d9045aedd8c)
[INFO] running `Command { std: "docker" "inspect" "7b8ba9df4d5be71e54d8fa808fdc55bfc785591fb4bdec5c3add56ff89d9b7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8ba9df4d5be71e54d8fa808fdc55bfc785591fb4bdec5c3add56ff89d9b7d1", kill_on_drop: false }`
[INFO] [stdout] 7b8ba9df4d5be71e54d8fa808fdc55bfc785591fb4bdec5c3add56ff89d9b7d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 02d2de669b758bf7ef9629c2484e3a6e390999cca64543eb1efecb8ebc0bb985
[INFO] running `Command { std: "docker" "start" "-a" "02d2de669b758bf7ef9629c2484e3a6e390999cca64543eb1efecb8ebc0bb985", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/leetcoders-ef365d9045aedd8c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests leetcoders
[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] [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" "02d2de669b758bf7ef9629c2484e3a6e390999cca64543eb1efecb8ebc0bb985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02d2de669b758bf7ef9629c2484e3a6e390999cca64543eb1efecb8ebc0bb985", kill_on_drop: false }`
[INFO] [stdout] 02d2de669b758bf7ef9629c2484e3a6e390999cca64543eb1efecb8ebc0bb985