[INFO] cloning repository https://github.com/yacn/lz4rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yacn/lz4rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyacn%2Flz4rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyacn%2Flz4rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 443a33606f073da02b991e18f5a9d2d8737a802d
[INFO] checking yacn/lz4rs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyacn%2Flz4rs" "/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/yacn/lz4rs on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yacn/lz4rs
[INFO] finished tweaking git repo https://github.com/yacn/lz4rs
[INFO] tweaked toml for git repo https://github.com/yacn/lz4rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/yacn/lz4rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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[INFO] the lockfile is outdated, regenerating it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" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/gcc-rs`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8ebb2efef5035c1ebf2d8df59fed77fc066faa90805a5140eb1ee2a7b87db70
[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" "b8ebb2efef5035c1ebf2d8df59fed77fc066faa90805a5140eb1ee2a7b87db70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8ebb2efef5035c1ebf2d8df59fed77fc066faa90805a5140eb1ee2a7b87db70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ebb2efef5035c1ebf2d8df59fed77fc066faa90805a5140eb1ee2a7b87db70", kill_on_drop: false }`
[INFO] [stdout] b8ebb2efef5035c1ebf2d8df59fed77fc066faa90805a5140eb1ee2a7b87db70
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ce96a840188fca2ea1835e64eaffb723696ba0d9d472dd491508f5114340476
[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" "8ce96a840188fca2ea1835e64eaffb723696ba0d9d472dd491508f5114340476", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.1.4 (https://github.com/alexcrichton/gcc-rs?rev=f5c52d956e0742a66e40c8301e634e136c3ae287#f5c52d95)
[INFO] [stdout] error[E0432]: unresolved import `std::io::Command`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `Command` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::process`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::process::InheritFd;
[INFO] [stdout]   |              ^^^^^^^ could not find `process` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::os::getenv`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     use std::os::getenv;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ no `getenv` in `os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `fs` in `io`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:104:18
[INFO] [stdout]     |
[INFO] [stdout] 104 |         std::io::fs::mkdir_recursive(&obj.dir_path(), std::io::USER_RWX).unwrap();
[INFO] [stdout]     |                  ^^ could not find `fs` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Path` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub include_directories: Vec<Path>,
[INFO] [stdout]    |                                  ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Path` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub objects: Vec<Path>,
[INFO] [stdout]    |                      ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:99:15
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let src = Path::new(getenv("CARGO_MANIFEST_DIR").unwrap());
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:100:15
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let dst = Path::new(getenv("OUT_DIR").unwrap());
[INFO] [stdout]     |               ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 3   | use std::path::Path;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `USER_RWX` in module `std::io`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:104:64
[INFO] [stdout]     |
[INFO] [stdout] 104 |         std::io::fs::mkdir_recursive(&obj.dir_path(), std::io::USER_RWX).unwrap();
[INFO] [stdout]     |                                                                ^^^^^^^^ not found in `std::io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 22 |             include_directories: Vec::new(),
[INFO] [stdout]    |                                  ^^^^^^^^ cannot infer type for type parameter `T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:59:43
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut cmd = Command::new(gcc(target.as_slice()));
[INFO] [stdout]    |                                           ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:65:15
[INFO] [stdout]    |
[INFO] [stdout] 65 |     if target.as_slice().contains("-ios") {
[INFO] [stdout]    |               ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:66:35
[INFO] [stdout]    |
[INFO] [stdout] 66 |         cmd.args(ios_flags(target.as_slice()).as_slice());
[INFO] [stdout]    |                                   ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |         if target.as_slice().contains("i686") {
[INFO] [stdout]    |                   ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:74:26
[INFO] [stdout]    |
[INFO] [stdout] 74 |         } else if target.as_slice().contains("x86_64") {
[INFO] [stdout]    |                          ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |         if !target.as_slice().contains("i686") {
[INFO] [stdout]    |                    ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:110:32
[INFO] [stdout]     |
[INFO] [stdout] 110 |     run(Command::new(ar(target.as_slice())).arg("crus")
[INFO] [stdout]     |                                ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `slice` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:115:36
[INFO] [stdout]     |
[INFO] [stdout] 115 |              dst.display(), output.slice(3, output.len() - 2));
[INFO] [stdout]     |                                    ^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:140:57
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let res = getenv(format!("{}_{}", var_base, target).as_slice())
[INFO] [stdout]     |                                                         ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:141:65
[INFO] [stdout]     |
[INFO] [stdout] 141 |         .or_else(|| getenv(format!("{}_{}", var_base, target_u).as_slice()))
[INFO] [stdout]     |                                                                 ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:142:61
[INFO] [stdout]     |
[INFO] [stdout] 142 |         .or_else(|| getenv(format!("{}_{}", kind, var_base).as_slice()))
[INFO] [stdout]     |                                                             ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `find_str` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:152:29
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let is_android = target.find_str("android").is_some();
[INFO] [stdout]     |                             ^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `find_str` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:164:29
[INFO] [stdout]     |
[INFO] [stdout] 164 |     let is_android = target.find_str("android").is_some();
[INFO] [stdout]     |                             ^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |        .as_slice().words().map(|s| s.to_string())
[INFO] [stdout]     |         ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     res.push(sdk_path.as_slice().trim());
[INFO] [stdout]     |                       ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gcc`
[INFO] [stdout] error: aborting due to 25 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0412, E0425, E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8ce96a840188fca2ea1835e64eaffb723696ba0d9d472dd491508f5114340476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce96a840188fca2ea1835e64eaffb723696ba0d9d472dd491508f5114340476", kill_on_drop: false }`
[INFO] [stdout] 8ce96a840188fca2ea1835e64eaffb723696ba0d9d472dd491508f5114340476