[INFO] cloning repository https://github.com/athenanike/slack-history
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/athenanike/slack-history" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fathenanike%2Fslack-history", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fathenanike%2Fslack-history'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6643555a54b6a1823e979bdfd199963a1e8af2e
[INFO] checking athenanike/slack-history against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fathenanike%2Fslack-history" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/athenanike/slack-history 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 git repo https://github.com/athenanike/slack-history
[INFO] finished tweaking git repo https://github.com/athenanike/slack-history
[INFO] tweaked toml for git repo https://github.com/athenanike/slack-history written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/athenanike/slack-history already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 90055807c00e94a4f01e01f6c7d66626c43118b903f2ff4af9c24ff078328d02
[INFO] running `Command { std: "docker" "start" "-a" "90055807c00e94a4f01e01f6c7d66626c43118b903f2ff4af9c24ff078328d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90055807c00e94a4f01e01f6c7d66626c43118b903f2ff4af9c24ff078328d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90055807c00e94a4f01e01f6c7d66626c43118b903f2ff4af9c24ff078328d02", kill_on_drop: false }`
[INFO] [stdout] 90055807c00e94a4f01e01f6c7d66626c43118b903f2ff4af9c24ff078328d02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6fe11120328f687fdd0a1ccb0017cc829b88aca5f09d9544652b3208ff2ca316
[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" "6fe11120328f687fdd0a1ccb0017cc829b88aca5f09d9544652b3208ff2ca316", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling curl-sys v0.1.35
[INFO] [stderr]     Checking rust-ini v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stdout] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/ini.rs:339:14
[INFO] [stdout]     |
[INFO] [stdout] 339 |     rdr: io::Chars<R>,
[INFO] [stdout]     |              ^^^^^ not found in `io`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::str::Chars;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/ini.rs:358:25
[INFO] [stdout]     |
[INFO] [stdout] 358 |     pub fn new(rdr: io::Chars<R>) -> Parser<R> {
[INFO] [stdout]     |                         ^^^^^ not found in `io`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::str::Chars;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #![feature(io)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stdout] error[E0599]: no method named `chars` found for struct `std::io::BufReader<std::io::Cursor<std::vec::Vec<u8>>>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/ini.rs:280:48
[INFO] [stdout]     |
[INFO] [stdout] 280 |         let mut parser = Parser::new(bufreader.chars());
[INFO] [stdout]     |                                                ^^^^^ method not found in `std::io::BufReader<std::io::Cursor<std::vec::Vec<u8>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chars` found for struct `std::io::BufReader<&mut dyn std::io::Read>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/ini.rs:286:43
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut parser = Parser::new(bufr.chars());
[INFO] [stdout]     |                                           ^^^^^ method not found in `std::io::BufReader<&mut dyn std::io::Read>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/ini.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |         while !self.eof() {
[INFO] [stdout]     |                     ^^^ cannot infer type for type parameter `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/ini.rs:471:49
[INFO] [stdout]     |
[INFO] [stdout] 471 |         while self.ch.unwrap() != '\n' && !self.eof() { self.bump(); }
[INFO] [stdout]     |                                                 ^^^ cannot infer type for type parameter `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-ini-0.5.1/src/ini.rs:478:21
[INFO] [stdout]     |
[INFO] [stdout] 478 |             if self.eof() {
[INFO] [stdout]     |                     ^^^ cannot infer type for type parameter `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0412, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-ini`.
[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" "6fe11120328f687fdd0a1ccb0017cc829b88aca5f09d9544652b3208ff2ca316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe11120328f687fdd0a1ccb0017cc829b88aca5f09d9544652b3208ff2ca316", kill_on_drop: false }`
[INFO] [stdout] 6fe11120328f687fdd0a1ccb0017cc829b88aca5f09d9544652b3208ff2ca316
