[INFO] fetching crate nereon 0.6.0...
[INFO] checking nereon-0.6.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate nereon 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate nereon 0.6.0 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 nereon 0.6.0
[INFO] finished tweaking crates.io crate nereon 0.6.0
[INFO] tweaked toml for crates.io crate nereon 0.6.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", 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] 8ccf4ae51b8d0b31cd52069ccd4145ba8e824b8257139cc77ee506f861b8ee8c
[INFO] running `Command { std: "docker" "start" "-a" "8ccf4ae51b8d0b31cd52069ccd4145ba8e824b8257139cc77ee506f861b8ee8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ccf4ae51b8d0b31cd52069ccd4145ba8e824b8257139cc77ee506f861b8ee8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ccf4ae51b8d0b31cd52069ccd4145ba8e824b8257139cc77ee506f861b8ee8c", kill_on_drop: false }`
[INFO] [stdout] 8ccf4ae51b8d0b31cd52069ccd4145ba8e824b8257139cc77ee506f861b8ee8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8941e3053050bf4a4c9ce5070da1c3f743ab3df09d1a01be829318c354649926
[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" "8941e3053050bf4a4c9ce5070da1c3f743ab3df09d1a01be829318c354649926", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling nereon_derive v0.6.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking nereon v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:192:33
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 s.push_str(pair.into_span().as_str());
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:196:33
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 let span = pair.into_span();
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:211:32
[INFO] [stdout]     |
[INFO] [stdout] 211 |                 let esc = pair.into_span().as_str();
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:224:33
[INFO] [stdout]     |
[INFO] [stdout] 224 |                 s.push_str(pair.into_span().as_str());
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:228:33
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 let span = pair.into_span();
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/noc/value.rs:156:29
[INFO] [stdout]     |
[INFO] [stdout] 156 |                         let mut node = old_value.unwrap_or_else(|| Value::Table(HashMap::new()));
[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: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         write!(f, "{} at ", self. reason);
[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]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             write!(f, "(line: {}, char {})", l, c);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 write!(f, " while parsing ");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | /         write!(
[INFO] [stdout] 63 | |             f,
[INFO] [stdout] 64 | |             "Expected {} but found {} while parsing the value for ",
[INFO] [stdout] 65 | |             self.expected, self.found
[INFO] [stdout] 66 | |         );
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 write!(f, "\"{}\", ", k);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 write!(f, "\"{}\"", k);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:192:33
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 s.push_str(pair.into_span().as_str());
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:196:33
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 let span = pair.into_span();
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:211:32
[INFO] [stdout]     |
[INFO] [stdout] 211 |                 let esc = pair.into_span().as_str();
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:224:33
[INFO] [stdout]     |
[INFO] [stdout] 224 |                 s.push_str(pair.into_span().as_str());
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'pest::iterators::Pair::<'i, R>::into_span': Please use `as_span` instead
[INFO] [stdout]    --> src/noc/mod.rs:228:33
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 let span = pair.into_span();
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/noc/value.rs:156:29
[INFO] [stdout]     |
[INFO] [stdout] 156 |                         let mut node = old_value.unwrap_or_else(|| Value::Table(HashMap::new()));
[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: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         write!(f, "{} at ", self. reason);
[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]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             write!(f, "(line: {}, char {})", l, c);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 write!(f, " while parsing ");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | /         write!(
[INFO] [stdout] 63 | |             f,
[INFO] [stdout] 64 | |             "Expected {} but found {} while parsing the value for ",
[INFO] [stdout] 65 | |             self.expected, self.found
[INFO] [stdout] 66 | |         );
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 write!(f, "\"{}\", ", k);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/noc/error.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 write!(f, "\"{}\"", k);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.63s
[INFO] running `Command { std: "docker" "inspect" "8941e3053050bf4a4c9ce5070da1c3f743ab3df09d1a01be829318c354649926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8941e3053050bf4a4c9ce5070da1c3f743ab3df09d1a01be829318c354649926", kill_on_drop: false }`
[INFO] [stdout] 8941e3053050bf4a4c9ce5070da1c3f743ab3df09d1a01be829318c354649926
