[INFO] fetching crate rcstring 0.2.1...
[INFO] testing rcstring-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rcstring 0.2.1 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate rcstring 0.2.1 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 rcstring 0.2.1
[INFO] finished tweaking crates.io crate rcstring 0.2.1
[INFO] tweaked toml for crates.io crate rcstring 0.2.1 written to /workspace/builds/worker-27/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] [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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] b4d9a9953479df0af2da89ce14146d12efdfab06837cabfa60ce6728729c2265
[INFO] running `Command { std: "docker" "start" "-a" "b4d9a9953479df0af2da89ce14146d12efdfab06837cabfa60ce6728729c2265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4d9a9953479df0af2da89ce14146d12efdfab06837cabfa60ce6728729c2265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d9a9953479df0af2da89ce14146d12efdfab06837cabfa60ce6728729c2265", kill_on_drop: false }`
[INFO] [stdout] b4d9a9953479df0af2da89ce14146d12efdfab06837cabfa60ce6728729c2265
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] c6f1c94fbb7b8b00e19f36eb05cb5ca4aaa82bc556286c45d7614ab56afd65aa
[INFO] running `Command { std: "docker" "start" "-a" "c6f1c94fbb7b8b00e19f36eb05cb5ca4aaa82bc556286c45d7614ab56afd65aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcstring v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "c6f1c94fbb7b8b00e19f36eb05cb5ca4aaa82bc556286c45d7614ab56afd65aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f1c94fbb7b8b00e19f36eb05cb5ca4aaa82bc556286c45d7614ab56afd65aa", kill_on_drop: false }`
[INFO] [stdout] c6f1c94fbb7b8b00e19f36eb05cb5ca4aaa82bc556286c45d7614ab56afd65aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] faadcaea42286acd8d45eff25e832da3a1d7398ef500208e8c746d0f9f04a99f
[INFO] running `Command { std: "docker" "start" "-a" "faadcaea42286acd8d45eff25e832da3a1d7398ef500208e8c746d0f9f04a99f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rcstring v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "faadcaea42286acd8d45eff25e832da3a1d7398ef500208e8c746d0f9f04a99f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faadcaea42286acd8d45eff25e832da3a1d7398ef500208e8c746d0f9f04a99f", kill_on_drop: false }`
[INFO] [stdout] faadcaea42286acd8d45eff25e832da3a1d7398ef500208e8c746d0f9f04a99f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 1c4d751a4f46f647d3ec768ea5077b91e3ea794fe38bf81182021ae3523ebd5b
[INFO] running `Command { std: "docker" "start" "-a" "1c4d751a4f46f647d3ec768ea5077b91e3ea794fe38bf81182021ae3523ebd5b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rcstring-9b2eeff989b4d093)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stderr]    Doc-tests rcstring
[INFO] [stdout] test test::cmp ... ok
[INFO] [stdout] test test::from_cstring ... ok
[INFO] [stdout] test test::cstring_len ... ok
[INFO] [stdout] test test::eq ... ok
[INFO] [stdout] test test::new_cstring ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - cstr (line 46) ... ok
[INFO] [stdout] test src/lib.rs - CString::new (line 106) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1c4d751a4f46f647d3ec768ea5077b91e3ea794fe38bf81182021ae3523ebd5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4d751a4f46f647d3ec768ea5077b91e3ea794fe38bf81182021ae3523ebd5b", kill_on_drop: false }`
[INFO] [stdout] 1c4d751a4f46f647d3ec768ea5077b91e3ea794fe38bf81182021ae3523ebd5b