[INFO] fetching crate rc-cell 0.1.0...
[INFO] testing rc-cell-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rc-cell 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rc-cell 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rc-cell 0.1.0
[INFO] finished tweaking crates.io crate rc-cell 0.1.0
[INFO] tweaked toml for crates.io crate rc-cell 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41e662af1eb54f6ec325f0c63a3d92d2fde156bdb2134ed28e60334f4900c641
[INFO] running `Command { std: "docker" "start" "-a" "41e662af1eb54f6ec325f0c63a3d92d2fde156bdb2134ed28e60334f4900c641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41e662af1eb54f6ec325f0c63a3d92d2fde156bdb2134ed28e60334f4900c641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41e662af1eb54f6ec325f0c63a3d92d2fde156bdb2134ed28e60334f4900c641", kill_on_drop: false }`
[INFO] [stdout] 41e662af1eb54f6ec325f0c63a3d92d2fde156bdb2134ed28e60334f4900c641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df52df0dd599f5155528dda72dc763e06abeeb925239472b0edf05acc22d48ca
[INFO] running `Command { std: "docker" "start" "-a" "df52df0dd599f5155528dda72dc763e06abeeb925239472b0edf05acc22d48ca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rc-cell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "df52df0dd599f5155528dda72dc763e06abeeb925239472b0edf05acc22d48ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df52df0dd599f5155528dda72dc763e06abeeb925239472b0edf05acc22d48ca", kill_on_drop: false }`
[INFO] [stdout] df52df0dd599f5155528dda72dc763e06abeeb925239472b0edf05acc22d48ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd9814406228ff3867fab2c2b743e62944528380171283e3e240cfe3decdac65
[INFO] running `Command { std: "docker" "start" "-a" "cd9814406228ff3867fab2c2b743e62944528380171283e3e240cfe3decdac65", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc-cell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `Command { std: "docker" "inspect" "cd9814406228ff3867fab2c2b743e62944528380171283e3e240cfe3decdac65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9814406228ff3867fab2c2b743e62944528380171283e3e240cfe3decdac65", kill_on_drop: false }`
[INFO] [stdout] cd9814406228ff3867fab2c2b743e62944528380171283e3e240cfe3decdac65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f20da2ce5c6d325da1c9afa3a01067d1e715ab47595d78492031bdcfaf51f19a
[INFO] running `Command { std: "docker" "start" "-a" "f20da2ce5c6d325da1c9afa3a01067d1e715ab47595d78492031bdcfaf51f19a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rc_cell-91f88db5f9b34d6f)
[INFO] [stderr]    Doc-tests rc-cell
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::basic_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] [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" "f20da2ce5c6d325da1c9afa3a01067d1e715ab47595d78492031bdcfaf51f19a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20da2ce5c6d325da1c9afa3a01067d1e715ab47595d78492031bdcfaf51f19a", kill_on_drop: false }`
[INFO] [stdout] f20da2ce5c6d325da1c9afa3a01067d1e715ab47595d78492031bdcfaf51f19a