[INFO] fetching crate narnia 0.1.0...
[INFO] checking narnia-0.1.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate narnia 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate narnia 0.1.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate narnia 0.1.0
[INFO] finished tweaking crates.io crate narnia 0.1.0
[INFO] tweaked toml for crates.io crate narnia 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ffd38d72374800cbb933942195dd6fd3974575b85134531954f2a90f3f39b57
[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" "2ffd38d72374800cbb933942195dd6fd3974575b85134531954f2a90f3f39b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ffd38d72374800cbb933942195dd6fd3974575b85134531954f2a90f3f39b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ffd38d72374800cbb933942195dd6fd3974575b85134531954f2a90f3f39b57", kill_on_drop: false }`
[INFO] [stdout] 2ffd38d72374800cbb933942195dd6fd3974575b85134531954f2a90f3f39b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--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] e5602e16fbb4e1f1691bca472d5f14c32a90a5a1afc4f155a847393af580a564
[INFO] running `Command { std: "docker" "start" "-a" "e5602e16fbb4e1f1691bca472d5f14c32a90a5a1afc4f155a847393af580a564", kill_on_drop: false }`
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[INFO] [stderr]     Checking narnia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     error_chain! {
[INFO] [stdout] 24 | |         foreign_links {
[INFO] [stdout] 25 | |             Io(std::io::Error);
[INFO] [stdout] 26 | |             AddrParse(std::net::AddrParseError);
[INFO] [stdout] 27 | |             Toml(toml::de::Error);
[INFO] [stdout] 28 | |         }
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     error_chain! {
[INFO] [stdout] 24 | |         foreign_links {
[INFO] [stdout] 25 | |             Io(std::io::Error);
[INFO] [stdout] 26 | |             AddrParse(std::net::AddrParseError);
[INFO] [stdout] 27 | |             Toml(toml::de::Error);
[INFO] [stdout] 28 | |         }
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     error_chain! {
[INFO] [stdout] 24 | |         foreign_links {
[INFO] [stdout] 25 | |             Io(std::io::Error);
[INFO] [stdout] 26 | |             AddrParse(std::net::AddrParseError);
[INFO] [stdout] 27 | |             Toml(toml::de::Error);
[INFO] [stdout] 28 | |         }
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     error_chain! {
[INFO] [stdout] 24 | |         foreign_links {
[INFO] [stdout] 25 | |             Io(std::io::Error);
[INFO] [stdout] 26 | |             AddrParse(std::net::AddrParseError);
[INFO] [stdout] 27 | |             Toml(toml::de::Error);
[INFO] [stdout] 28 | |         }
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[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] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/sandbox/ipc.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .reduce(|x, y| x + "," + &y)
[INFO] [stdout]    |          ^^^^^^ multiple `reduce` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let hook_list = Iterator::reduce(config.hooks.keys()
[INFO] [stdout] 29 |         .map(|x| x.to_owned()), |x, y| x + "," + &y)
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let hook_list = Reduce::reduce(config.hooks.keys()
[INFO] [stdout] 29 |         .map(|x| x.to_owned()), |x, y| x + "," + &y)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     error_chain! {
[INFO] [stdout] 24 | |         foreign_links {
[INFO] [stdout] 25 | |             Io(std::io::Error);
[INFO] [stdout] 26 | |             AddrParse(std::net::AddrParseError);
[INFO] [stdout] 27 | |             Toml(toml::de::Error);
[INFO] [stdout] 28 | |         }
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[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 import: `reduce::Reduce`
[INFO] [stdout]  --> src/sandbox/ipc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use reduce::Reduce;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `narnia`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/sandbox/ipc.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .reduce(|x, y| x + "," + &y)
[INFO] [stdout]    |          ^^^^^^ multiple `reduce` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let hook_list = Iterator::reduce(config.hooks.keys()
[INFO] [stdout] 29 |         .map(|x| x.to_owned()), |x, y| x + "," + &y)
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let hook_list = Reduce::reduce(config.hooks.keys()
[INFO] [stdout] 29 |         .map(|x| x.to_owned()), |x, y| x + "," + &y)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     error_chain! {
[INFO] [stdout] 24 | |         foreign_links {
[INFO] [stdout] 25 | |             Io(std::io::Error);
[INFO] [stdout] 26 | |             AddrParse(std::net::AddrParseError);
[INFO] [stdout] 27 | |             Toml(toml::de::Error);
[INFO] [stdout] 28 | |         }
[INFO] [stdout] 29 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[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 import: `reduce::Reduce`
[INFO] [stdout]  --> src/sandbox/ipc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use reduce::Reduce;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e5602e16fbb4e1f1691bca472d5f14c32a90a5a1afc4f155a847393af580a564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5602e16fbb4e1f1691bca472d5f14c32a90a5a1afc4f155a847393af580a564", kill_on_drop: false }`
[INFO] [stdout] e5602e16fbb4e1f1691bca472d5f14c32a90a5a1afc4f155a847393af580a564