[INFO] fetching crate feaders 0.2.0...
[INFO] checking feaders-0.2.0 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] extracting crate feaders 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate feaders 0.2.0 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate feaders 0.2.0
[INFO] finished tweaking crates.io crate feaders 0.2.0
[INFO] tweaked toml for crates.io crate feaders 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.license_file
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7140c0e8c463fc4ae2e3e4620932bd5f87b54952ec57710f99155d9335e079a
[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" "b7140c0e8c463fc4ae2e3e4620932bd5f87b54952ec57710f99155d9335e079a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7140c0e8c463fc4ae2e3e4620932bd5f87b54952ec57710f99155d9335e079a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7140c0e8c463fc4ae2e3e4620932bd5f87b54952ec57710f99155d9335e079a", kill_on_drop: false }`
[INFO] [stdout] b7140c0e8c463fc4ae2e3e4620932bd5f87b54952ec57710f99155d9335e079a
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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] bb81ac82b8781da319cff8e03e78ed7b04e865582d832afaff080eacb7ee8772
[INFO] running `Command { std: "docker" "start" "-a" "bb81ac82b8781da319cff8e03e78ed7b04e865582d832afaff080eacb7ee8772", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.license_file
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking feaders v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut f = try!(File::open(&self.path));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         try!(f.read_to_string(&mut s));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let mut f = try!(File::open(file));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     try!(f.read_to_string(&mut s));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut f = try!(File::open(&self.path));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         try!(f.read_to_string(&mut s));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let mut f = try!(File::open(file));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     try!(f.read_to_string(&mut s));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `&T`
[INFO] [stdout]   --> src/utils.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let strref = c.as_ref();
[INFO] [stdout]    |                     ------     ^^^^^^ cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     consider giving `strref` the explicit type `&T`, where the type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `Component<'_>: AsRef<_>`
[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 E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `feaders`
[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[E0283]: type annotations needed for `&T`
[INFO] [stdout]   --> src/utils.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let strref = c.as_ref();
[INFO] [stdout]    |                     ------     ^^^^^^ cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     consider giving `strref` the explicit type `&T`, where the type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `Component<'_>: AsRef<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[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 E0283`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb81ac82b8781da319cff8e03e78ed7b04e865582d832afaff080eacb7ee8772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb81ac82b8781da319cff8e03e78ed7b04e865582d832afaff080eacb7ee8772", kill_on_drop: false }`
[INFO] [stdout] bb81ac82b8781da319cff8e03e78ed7b04e865582d832afaff080eacb7ee8772