[INFO] fetching crate lttb 0.2.0...
[INFO] testing lttb-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate lttb 0.2.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate lttb 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lttb 0.2.0
[INFO] finished tweaking crates.io crate lttb 0.2.0
[INFO] tweaked toml for crates.io crate lttb 0.2.0 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49e9290b8e76ccb155c0f64764fd5fbd6f65a5a8f04a70072ac73461a81e5291
[INFO] running `Command { std: "docker" "start" "-a" "49e9290b8e76ccb155c0f64764fd5fbd6f65a5a8f04a70072ac73461a81e5291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49e9290b8e76ccb155c0f64764fd5fbd6f65a5a8f04a70072ac73461a81e5291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e9290b8e76ccb155c0f64764fd5fbd6f65a5a8f04a70072ac73461a81e5291", kill_on_drop: false }`
[INFO] [stdout] 49e9290b8e76ccb155c0f64764fd5fbd6f65a5a8f04a70072ac73461a81e5291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6382ee8e7d7fd7fe38ee5b3d9e84452f7ce16555bcbc53e2d818d8ea963a721
[INFO] running `Command { std: "docker" "start" "-a" "a6382ee8e7d7fd7fe38ee5b3d9e84452f7ce16555bcbc53e2d818d8ea963a721", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lttb v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "a6382ee8e7d7fd7fe38ee5b3d9e84452f7ce16555bcbc53e2d818d8ea963a721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6382ee8e7d7fd7fe38ee5b3d9e84452f7ce16555bcbc53e2d818d8ea963a721", kill_on_drop: false }`
[INFO] [stdout] a6382ee8e7d7fd7fe38ee5b3d9e84452f7ce16555bcbc53e2d818d8ea963a721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f43d24347c33fa164c6401d960cd8161ddf1a30a3ce9260058ffd53abe689db
[INFO] running `Command { std: "docker" "start" "-a" "3f43d24347c33fa164c6401d960cd8161ddf1a30a3ce9260058ffd53abe689db", kill_on_drop: false }`
[INFO] [stderr]    Compiling lttb v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "3f43d24347c33fa164c6401d960cd8161ddf1a30a3ce9260058ffd53abe689db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f43d24347c33fa164c6401d960cd8161ddf1a30a3ce9260058ffd53abe689db", kill_on_drop: false }`
[INFO] [stdout] 3f43d24347c33fa164c6401d960cd8161ddf1a30a3ce9260058ffd53abe689db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a0b82596044c87e6cd96758cf70eaad16c0d1c98d29875f66672dc01d013c94
[INFO] running `Command { std: "docker" "start" "-a" "6a0b82596044c87e6cd96758cf70eaad16c0d1c98d29875f66672dc01d013c94", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lttb-b5d77345679ce0d0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::lttb_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lttb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 31) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a0b82596044c87e6cd96758cf70eaad16c0d1c98d29875f66672dc01d013c94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0b82596044c87e6cd96758cf70eaad16c0d1c98d29875f66672dc01d013c94", kill_on_drop: false }`
[INFO] [stdout] 6a0b82596044c87e6cd96758cf70eaad16c0d1c98d29875f66672dc01d013c94