[INFO] fetching crate ceethane 0.1.0...
[INFO] testing ceethane-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ceethane 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ceethane 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 ceethane 0.1.0
[INFO] finished tweaking crates.io crate ceethane 0.1.0
[INFO] tweaked toml for crates.io crate ceethane 0.1.0 written to /workspace/builds/worker-4/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] 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-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" "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] 0b52c5bb345437921fcc983124bd07146c5a3c7bec6822eaa0f7c6f565803051
[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" "0b52c5bb345437921fcc983124bd07146c5a3c7bec6822eaa0f7c6f565803051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b52c5bb345437921fcc983124bd07146c5a3c7bec6822eaa0f7c6f565803051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b52c5bb345437921fcc983124bd07146c5a3c7bec6822eaa0f7c6f565803051", kill_on_drop: false }`
[INFO] [stdout] 0b52c5bb345437921fcc983124bd07146c5a3c7bec6822eaa0f7c6f565803051
[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" "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] cf443107ee06c9a68e713ea5f9745a1e93ac3c048b1fe9c098017aa87456c227
[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" "cf443107ee06c9a68e713ea5f9745a1e93ac3c048b1fe9c098017aa87456c227", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling ceethane v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/logger/mod.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn kvs(&self, HashMap<String, Value>) -> Self;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: HashMap<String, Value>`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/logger/mod.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn err<E>(&self, &E) -> Self where E: Error;
[INFO] [stdout]    |                      ^^ help: try naming the parameter or explicitly ignoring it: `_: &E`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for macro
[INFO] [stdout]  --> src/macros.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | macro_rules! logf {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:4:80
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stdout]   |                                                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.49s
[INFO] running `Command { std: "docker" "inspect" "cf443107ee06c9a68e713ea5f9745a1e93ac3c048b1fe9c098017aa87456c227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf443107ee06c9a68e713ea5f9745a1e93ac3c048b1fe9c098017aa87456c227", kill_on_drop: false }`
[INFO] [stdout] cf443107ee06c9a68e713ea5f9745a1e93ac3c048b1fe9c098017aa87456c227
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c79454eaba7b812d95e911c70c3a9953827b5a4e6d1ec38498bc1b30c5000f0
[INFO] running `Command { std: "docker" "start" "-a" "7c79454eaba7b812d95e911c70c3a9953827b5a4e6d1ec38498bc1b30c5000f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling ceethane v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/logger/mod.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn kvs(&self, HashMap<String, Value>) -> Self;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: HashMap<String, Value>`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/logger/mod.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn err<E>(&self, &E) -> Self where E: Error;
[INFO] [stdout]    |                      ^^ help: try naming the parameter or explicitly ignoring it: `_: &E`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for macro
[INFO] [stdout]  --> src/macros.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | macro_rules! logf {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:4:80
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stdout]   |                                                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/fake_web_app.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     WebServer::new(ll).put_score(32, 32);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/logger/mod.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn kvs(&self, HashMap<String, Value>) -> Self;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: HashMap<String, Value>`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/logger/mod.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn err<E>(&self, &E) -> Self where E: Error;
[INFO] [stdout]    |                      ^^ help: try naming the parameter or explicitly ignoring it: `_: &E`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for macro
[INFO] [stdout]  --> src/macros.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | macro_rules! logf {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:4:80
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stdout]   |                                                                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `Command { std: "docker" "inspect" "7c79454eaba7b812d95e911c70c3a9953827b5a4e6d1ec38498bc1b30c5000f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c79454eaba7b812d95e911c70c3a9953827b5a4e6d1ec38498bc1b30c5000f0", kill_on_drop: false }`
[INFO] [stdout] 7c79454eaba7b812d95e911c70c3a9953827b5a4e6d1ec38498bc1b30c5000f0
[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" "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] c170265df86834a9853b4b1d5f8614e8462447f83aaed39d9f6ca15925eb4a7b
[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" "c170265df86834a9853b4b1d5f8614e8462447f83aaed39d9f6ca15925eb4a7b", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/logger/mod.rs:15:19
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn kvs(&self, HashMap<String, Value>) -> Self;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: HashMap<String, Value>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:4:9
[INFO] [stderr]    |
[INFO] [stderr] 4  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/logger/mod.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn err<E>(&self, &E) -> Self where E: Error;
[INFO] [stderr]    |                      ^^ help: try naming the parameter or explicitly ignoring it: `_: &E`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for macro
[INFO] [stderr]  --> src/macros.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | macro_rules! logf {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:4:80
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![deny(warnings, missing_debug_implementations, missing_copy_implementations, missing_docs)]
[INFO] [stderr]   |                                                                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ceethane` (lib) generated 3 warnings
[INFO] [stderr] warning: `ceethane` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/fake_web_app.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     WebServer::new(ll).put_score(32, 32);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `ceethane` (example "fake_web_app") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ceethane-84209fbb5c0e3661)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ceethane
[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" "c170265df86834a9853b4b1d5f8614e8462447f83aaed39d9f6ca15925eb4a7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c170265df86834a9853b4b1d5f8614e8462447f83aaed39d9f6ca15925eb4a7b", kill_on_drop: false }`
[INFO] [stdout] c170265df86834a9853b4b1d5f8614e8462447f83aaed39d9f6ca15925eb4a7b