[INFO] crate soft-ascii-string 1.1.0 is already in cache
[INFO] testing soft-ascii-string-1.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate soft-ascii-string 1.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate soft-ascii-string 1.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate soft-ascii-string 1.1.0
[INFO] finished tweaking crates.io crate soft-ascii-string 1.1.0
[INFO] tweaked toml for crates.io crate soft-ascii-string 1.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95e2e19e1aed88931fa6bc6d8af697c5b41601378b16bd69c44cedf88b8da42e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "95e2e19e1aed88931fa6bc6d8af697c5b41601378b16bd69c44cedf88b8da42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95e2e19e1aed88931fa6bc6d8af697c5b41601378b16bd69c44cedf88b8da42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e2e19e1aed88931fa6bc6d8af697c5b41601378b16bd69c44cedf88b8da42e", kill_on_drop: false }`
[INFO] [stdout] 95e2e19e1aed88931fa6bc6d8af697c5b41601378b16bd69c44cedf88b8da42e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 02269cc36bfa8f1f39155c41cbfc08c53f32ecf8bc060f877c3b7a14d5e86451
[INFO] running `Command { std: "docker" "start" "-a" "02269cc36bfa8f1f39155c41cbfc08c53f32ecf8bc060f877c3b7a14d5e86451", kill_on_drop: false }`
[INFO] [stderr]    Compiling soft-ascii-string v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |         write!(fter, "{}", self.description())
[INFO] [stdout]    |                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "02269cc36bfa8f1f39155c41cbfc08c53f32ecf8bc060f877c3b7a14d5e86451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02269cc36bfa8f1f39155c41cbfc08c53f32ecf8bc060f877c3b7a14d5e86451", kill_on_drop: false }`
[INFO] [stdout] 02269cc36bfa8f1f39155c41cbfc08c53f32ecf8bc060f877c3b7a14d5e86451
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5d068e69b90287370ad67ce611e67ecd6477db52c0a25261a4c793f4ea6c6614
[INFO] running `Command { std: "docker" "start" "-a" "5d068e69b90287370ad67ce611e67ecd6477db52c0a25261a4c793f4ea6c6614", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |         write!(fter, "{}", self.description())
[INFO] [stdout]    |                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling soft-ascii-string v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |         write!(fter, "{}", self.description())
[INFO] [stdout]    |                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "5d068e69b90287370ad67ce611e67ecd6477db52c0a25261a4c793f4ea6c6614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d068e69b90287370ad67ce611e67ecd6477db52c0a25261a4c793f4ea6c6614", kill_on_drop: false }`
[INFO] [stdout] 5d068e69b90287370ad67ce611e67ecd6477db52c0a25261a4c793f4ea6c6614
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0db7e4ccaeac5e3513b7234ab89139470f145ac36f8d222e2fbcde77ab96432e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0db7e4ccaeac5e3513b7234ab89139470f145ac36f8d222e2fbcde77ab96432e", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |         write!(fter, "{}", self.description())
[INFO] [stderr]    |                                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |         write!(fter, "{}", self.description())
[INFO] [stderr]    |                                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/soft_ascii_string-ee972df6348f7519
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test soft_char::test::SoftAsciiChar::from_char ... ok
[INFO] [stdout] test soft_str::test::SoftAsciiStr::compile_bounds__get_unchecked ... ok
[INFO] [stdout] test soft_char::test::SoftAsciiChar::from_unchecked ... ok
[INFO] [stdout] test soft_str::test::SoftAsciiStr::from_str ... ok
[INFO] [stdout] test soft_str::test::SoftAsciiStr::revalidate_soft_constraint ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::as_ref_str ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::from_str ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::from_string ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::from_unchecked ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::has_into_string ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::has_into_vec_u8 ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::revalidate_soft_constraint ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::str_eq_string ... ok
[INFO] [stdout] test soft_char::test::SoftAsciiChar::revalidate_soft_constraint ... ok
[INFO] [stdout] test soft_str::test::SoftAsciiStr::from_unchecked ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::borrow_str ... ok
[INFO] [stdout] test soft_string::tests::SoftAsciiString::buffer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests soft-ascii-string
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0db7e4ccaeac5e3513b7234ab89139470f145ac36f8d222e2fbcde77ab96432e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db7e4ccaeac5e3513b7234ab89139470f145ac36f8d222e2fbcde77ab96432e", kill_on_drop: false }`
[INFO] [stdout] 0db7e4ccaeac5e3513b7234ab89139470f145ac36f8d222e2fbcde77ab96432e