[INFO] cloning repository https://github.com/bnjbvr/better-rss
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bnjbvr/better-rss" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fbetter-rss", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fbetter-rss'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d63e28d2b6699da8b26934dbea229ddaad3d883e
[INFO] checking bnjbvr/better-rss against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnjbvr%2Fbetter-rss" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bnjbvr/better-rss on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bnjbvr/better-rss
[INFO] finished tweaking git repo https://github.com/bnjbvr/better-rss
[INFO] tweaked toml for git repo https://github.com/bnjbvr/better-rss written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/bnjbvr/better-rss already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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] 0f7a421e72dc4cbb39db6ed7e98c3609b26adced98a335dfe6624387cde68858
[INFO] running `Command { std: "docker" "start" "-a" "0f7a421e72dc4cbb39db6ed7e98c3609b26adced98a335dfe6624387cde68858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f7a421e72dc4cbb39db6ed7e98c3609b26adced98a335dfe6624387cde68858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f7a421e72dc4cbb39db6ed7e98c3609b26adced98a335dfe6624387cde68858", kill_on_drop: false }`
[INFO] [stdout] 0f7a421e72dc4cbb39db6ed7e98c3609b26adced98a335dfe6624387cde68858
[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=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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ed33f078852240c9a53d5292221963aa29e28deab78d62c16395b9e9ed378b3
[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" "3ed33f078852240c9a53d5292221963aa29e28deab78d62c16395b9e9ed378b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking json v0.11.13
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking tokio-trace-core v0.2.0
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking miniz_oxide v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/try_from-0.3.2/src/char.rs:56:28
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 match u32::try_from(n)? {
[INFO] [stdout]     |                            ^^^^^^^^ multiple `try_from` found
[INFO] [stdout] ...
[INFO] [stdout] 68  | impl_int_to_char!(i8, i16, i32, i64, isize, u16, u32, u64, usize);
[INFO] [stdout]     | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in the trait `TryFrom`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/try_from-0.3.2/src/lib.rs:21:5
[INFO] [stdout]     |
[INFO] [stdout] 21  |     fn try_from(T) -> Result<Self, Self::Err>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: candidate #2 is defined in the trait `std::convert::TryFrom`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 match TryFrom::try_from(n)? {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 56  |                 match std::convert::TryFrom::try_from(n)? {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `try_from`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3ed33f078852240c9a53d5292221963aa29e28deab78d62c16395b9e9ed378b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ed33f078852240c9a53d5292221963aa29e28deab78d62c16395b9e9ed378b3", kill_on_drop: false }`
[INFO] [stdout] 3ed33f078852240c9a53d5292221963aa29e28deab78d62c16395b9e9ed378b3