[INFO] fetching crate snoot 0.1.2...
[INFO] testing snoot-0.1.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate snoot 0.1.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate snoot 0.1.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate snoot 0.1.2
[INFO] finished tweaking crates.io crate snoot 0.1.2
[INFO] tweaked toml for crates.io crate snoot 0.1.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0ee303aa3675aafc1049266ac16c80693bca70982fe1c975829e1eb0f2ced0f
[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" "e0ee303aa3675aafc1049266ac16c80693bca70982fe1c975829e1eb0f2ced0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0ee303aa3675aafc1049266ac16c80693bca70982fe1c975829e1eb0f2ced0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ee303aa3675aafc1049266ac16c80693bca70982fe1c975829e1eb0f2ced0f", kill_on_drop: false }`
[INFO] [stdout] e0ee303aa3675aafc1049266ac16c80693bca70982fe1c975829e1eb0f2ced0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0990b6d6622ccb55cd34e7ded3ce41184196852543cd5f2196127bb181682d6b
[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" "0990b6d6622ccb55cd34e7ded3ce41184196852543cd5f2196127bb181682d6b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling utf-8 v0.6.0
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling tendril v0.2.4
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling snoot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]   --> src/diagnostic/diagnostic_bag.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         use std::cmp::Ord;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:300:29
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn deserialize_tuple<V>(mut self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stdout]     |                             ----^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:310:36
[INFO] [stdout]     |
[INFO] [stdout] 310 |     fn deserialize_tuple_struct<V>(mut self,
[INFO] [stdout]     |                                    ----^^^^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:357:30
[INFO] [stdout]     |
[INFO] [stdout] 357 |     fn deserialize_struct<V>(mut self,
[INFO] [stdout]     |                              ----^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.93s
[INFO] running `Command { std: "docker" "inspect" "0990b6d6622ccb55cd34e7ded3ce41184196852543cd5f2196127bb181682d6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0990b6d6622ccb55cd34e7ded3ce41184196852543cd5f2196127bb181682d6b", kill_on_drop: false }`
[INFO] [stdout] 0990b6d6622ccb55cd34e7ded3ce41184196852543cd5f2196127bb181682d6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e76ba5eec736f7f2b91f360f773ad0d75505587efe78d6583024bd29fd8ac334
[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" "e76ba5eec736f7f2b91f360f773ad0d75505587efe78d6583024bd29fd8ac334", kill_on_drop: false }`
[INFO] [stderr]    Compiling snoot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]   --> src/diagnostic/diagnostic_bag.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         use std::cmp::Ord;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:300:29
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn deserialize_tuple<V>(mut self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stdout]     |                             ----^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:310:36
[INFO] [stdout]     |
[INFO] [stdout] 310 |     fn deserialize_tuple_struct<V>(mut self,
[INFO] [stdout]     |                                    ----^^^^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:357:30
[INFO] [stdout]     |
[INFO] [stdout] 357 |     fn deserialize_struct<V>(mut self,
[INFO] [stdout]     |                              ----^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]   --> src/diagnostic/diagnostic_bag.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         use std::cmp::Ord;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:300:29
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn deserialize_tuple<V>(mut self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stdout]     |                             ----^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:310:36
[INFO] [stdout]     |
[INFO] [stdout] 310 |     fn deserialize_tuple_struct<V>(mut self,
[INFO] [stdout]     |                                    ----^^^^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/serde_serialization/mod.rs:357:30
[INFO] [stdout]     |
[INFO] [stdout] 357 |     fn deserialize_struct<V>(mut self,
[INFO] [stdout]     |                              ----^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.86s
[INFO] running `Command { std: "docker" "inspect" "e76ba5eec736f7f2b91f360f773ad0d75505587efe78d6583024bd29fd8ac334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76ba5eec736f7f2b91f360f773ad0d75505587efe78d6583024bd29fd8ac334", kill_on_drop: false }`
[INFO] [stdout] e76ba5eec736f7f2b91f360f773ad0d75505587efe78d6583024bd29fd8ac334
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77ce0d530b093aed517051d4111ee4d1c7cf87203bd2dba44e7a95124c06bff4
[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" "77ce0d530b093aed517051d4111ee4d1c7cf87203bd2dba44e7a95124c06bff4", kill_on_drop: false }`
[INFO] [stderr] warning: the item `Ord` is imported redundantly
[INFO] [stderr]   --> src/diagnostic/diagnostic_bag.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         use std::cmp::Ord;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/serde_serialization/mod.rs:300:29
[INFO] [stderr]     |
[INFO] [stderr] 300 |     fn deserialize_tuple<V>(mut self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/serde_serialization/mod.rs:310:36
[INFO] [stderr]     |
[INFO] [stderr] 310 |     fn deserialize_tuple_struct<V>(mut self,
[INFO] [stderr]     |                                    ----^^^^
[INFO] [stderr]     |                                    |
[INFO] [stderr]     |                                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/serde_serialization/mod.rs:357:30
[INFO] [stderr]     |
[INFO] [stderr] 357 |     fn deserialize_struct<V>(mut self,
[INFO] [stderr]     |                              ----^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Ord` is imported redundantly
[INFO] [stderr]   --> src/diagnostic/diagnostic_bag.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         use std::cmp::Ord;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/serde_serialization/mod.rs:300:29
[INFO] [stderr]     |
[INFO] [stderr] 300 |     fn deserialize_tuple<V>(mut self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/serde_serialization/mod.rs:310:36
[INFO] [stderr]     |
[INFO] [stderr] 310 |     fn deserialize_tuple_struct<V>(mut self,
[INFO] [stderr]     |                                    ----^^^^
[INFO] [stderr]     |                                    |
[INFO] [stderr]     |                                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/serde_serialization/mod.rs:357:30
[INFO] [stderr]     |
[INFO] [stderr] 357 |     fn deserialize_struct<V>(mut self,
[INFO] [stderr]     |                              ----^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/snoot-ae3dc79bc1135823
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test diagnostic::test_base_10_length ... ok
[INFO] [stdout] test parse::test::parens ... ok
[INFO] [stdout] test parse::find_newline_test ... ok
[INFO] [stdout] test parse::test::single_ident ... ok
[INFO] [stdout] test parse::simplified_test::ident ... ok
[INFO] [stdout] test parse::simplified_test::list ... ok
[INFO] [stdout] test parse::simplified_test::multiple_top_level_lists ... ok
[INFO] [stdout] test parse::test::two_idents ... ok
[INFO] [stdout] test diagnostic::test_basic_error ... ok
[INFO] [stdout] test serde_serialization::test::test_deserialize_option ... ok
[INFO] [stdout] test parse::simplified_test::prop_regression ... ok
[INFO] [stdout] test serde_serialization::test::test_enum ... ok
[INFO] [stdout] test parse::simplified_test::mismatched_list_recovery ... ok
[INFO] [stdout] test serde_serialization::test::test_default_field ... ok
[INFO] [stdout] test diagnostic::diagnostic_macros ... ok
[INFO] [stdout] test serde_serialization::test::test_seq_deserialization ... ok
[INFO] [stdout] test serde_serialization::test::test_tuple_struct_deserialization ... ok
[INFO] [stdout] test serde_serialization::test::test_simple_deserialization ... ok
[INFO] [stdout] test token::test::double_parens ... ok
[INFO] [stdout] test serde_serialization::test::test_deserialize_newtype_structu ... ok
[INFO] [stdout] test serde_serialization::test::test_deserialize_unit_structure ... ok
[INFO] [stdout] test serde_serialization::test::test_struct_deserialization ... ok
[INFO] [stdout] test serde_serialization::test::test_map_deserialization ... ok
[INFO] [stdout] test token::test::identifier ... ok
[INFO] [stdout] test token::test::empty ... ok
[INFO] [stdout] test serde_serialization::test::test_tuple_deserialization ... ok
[INFO] [stdout] test token::test::ident_white_ident ... ok
[INFO] [stdout] test token::test::numbers ... ok
[INFO] [stdout] test token::test::paired_parens ... ok
[INFO] [stdout] test token::test::single_open_paren ... ok
[INFO] [stdout] test token::test::split ... ok
[INFO] [stdout] test token::test::unary_literal ... ok
[INFO] [stdout] test token::test::single_closing_paren ... ok
[INFO] [stdout] test token::test::nested_parens ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests snoot
[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" "77ce0d530b093aed517051d4111ee4d1c7cf87203bd2dba44e7a95124c06bff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77ce0d530b093aed517051d4111ee4d1c7cf87203bd2dba44e7a95124c06bff4", kill_on_drop: false }`
[INFO] [stdout] 77ce0d530b093aed517051d4111ee4d1c7cf87203bd2dba44e7a95124c06bff4
