[INFO] updating cached repository yacn/lz4rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yacn/lz4rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yacn/lz4rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/yacn/lz4rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yacn/lz4rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yacn/lz4rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yacn/lz4rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yacn/lz4rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 443a33606f073da02b991e18f5a9d2d8737a802d
[INFO] sha for GitHub repo yacn/lz4rs: 443a33606f073da02b991e18f5a9d2d8737a802d
[INFO] validating manifest of yacn/lz4rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of yacn/lz4rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing yacn/lz4rs
[INFO] finished frobbing yacn/lz4rs
[INFO] frobbed toml for yacn/lz4rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/yacn/lz4rs/Cargo.toml
[INFO] started frobbing yacn/lz4rs
[INFO] finished frobbing yacn/lz4rs
[INFO] frobbed toml for yacn/lz4rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yacn/lz4rs/Cargo.toml
[INFO] crate yacn/lz4rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yacn/lz4rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/gcc-rs`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/gcc-rs`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing yacn/lz4rs against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yacn/lz4rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7f65141e76bcf7e27b3a4dba91a4c7ccd8a1acdc6a9087950156df93d6cfc585
[INFO] running `"docker" "start" "-a" "7f65141e76bcf7e27b3a4dba91a4c7ccd8a1acdc6a9087950156df93d6cfc585"`
[INFO] [stderr]    Compiling gcc v0.1.4 (https://github.com/alexcrichton/gcc-rs?rev=f5c52d956e0742a66e40c8301e634e136c3ae287#f5c52d95)
[INFO] [stderr] error[E0432]: unresolved import `std::io::Command`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::Command;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^ no `Command` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::io::process`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::process::InheritFd;
[INFO] [stderr]   |              ^^^^^^^ could not find `process` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::os::getenv`
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     use std::os::getenv;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ no `getenv` in `os`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:99:15
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let src = Path::new(getenv("CARGO_MANIFEST_DIR").unwrap());
[INFO] [stderr]    |               ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:100:15
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let dst = Path::new(getenv("OUT_DIR").unwrap());
[INFO] [stderr]     |               ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `fs` in `io`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:104:18
[INFO] [stderr]     |
[INFO] [stderr] 104 |         std::io::fs::mkdir_recursive(&obj.dir_path(), std::io::USER_RWX).unwrap();
[INFO] [stderr]     |                  ^^ could not find `fs` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Path` in this scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:10:34
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub include_directories: Vec<Path>,
[INFO] [stderr]    |                                  ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::path::Path;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Path` in this scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub objects: Vec<Path>,
[INFO] [stderr]    |                      ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::path::Path;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `USER_RWX` in module `std::io`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:104:64
[INFO] [stderr]     |
[INFO] [stderr] 104 |         std::io::fs::mkdir_recursive(&obj.dir_path(), std::io::USER_RWX).unwrap();
[INFO] [stderr]     |                                                                ^^^^^^^^ not found in `std::io`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:59:43
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut cmd = Command::new(gcc(target.as_slice()));
[INFO] [stderr]    |                                           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:65:15
[INFO] [stderr]    |
[INFO] [stderr] 65 |     if target.as_slice().contains("-ios") {
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:66:35
[INFO] [stderr]    |
[INFO] [stderr] 66 |         cmd.args(ios_flags(target.as_slice()).as_slice());
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:72:19
[INFO] [stderr]    |
[INFO] [stderr] 72 |         if target.as_slice().contains("i686") {
[INFO] [stderr]    |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:74:26
[INFO] [stderr]    |
[INFO] [stderr] 74 |         } else if target.as_slice().contains("x86_64") {
[INFO] [stderr]    |                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:78:20
[INFO] [stderr]    |
[INFO] [stderr] 78 |         if !target.as_slice().contains("i686") {
[INFO] [stderr]    |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:110:32
[INFO] [stderr]     |
[INFO] [stderr] 110 |     run(Command::new(ar(target.as_slice())).arg("crus")
[INFO] [stderr]     |                                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `slice` found for type `&str` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:115:36
[INFO] [stderr]     |
[INFO] [stderr] 115 |              dst.display(), output.slice(3, output.len() - 2));
[INFO] [stderr]     |                                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:140:57
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let res = getenv(format!("{}_{}", var_base, target).as_slice())
[INFO] [stderr]     |                                                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:141:65
[INFO] [stderr]     |
[INFO] [stderr] 141 |         .or_else(|| getenv(format!("{}_{}", var_base, target_u).as_slice()))
[INFO] [stderr]     |                                                                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:142:61
[INFO] [stderr]     |
[INFO] [stderr] 142 |         .or_else(|| getenv(format!("{}_{}", kind, var_base).as_slice()))
[INFO] [stderr]     |                                                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `find_str` found for type `&str` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:152:29
[INFO] [stderr]     |
[INFO] [stderr] 152 |     let is_android = target.find_str("android").is_some();
[INFO] [stderr]     |                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `find_str` found for type `&str` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:164:29
[INFO] [stderr]     |
[INFO] [stderr] 164 |     let is_android = target.find_str("android").is_some();
[INFO] [stderr]     |                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:175:9
[INFO] [stderr]     |
[INFO] [stderr] 175 |        .as_slice().words().map(|s| s.to_string())
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/gcc-rs-cd3269fb36fe9cfa/f5c52d9/src/lib.rs:222:23
[INFO] [stderr]     |
[INFO] [stderr] 222 |     res.push(sdk_path.as_slice().trim());
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 24 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0425, E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: Could not compile `gcc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7f65141e76bcf7e27b3a4dba91a4c7ccd8a1acdc6a9087950156df93d6cfc585"`
[INFO] running `"docker" "rm" "-f" "7f65141e76bcf7e27b3a4dba91a4c7ccd8a1acdc6a9087950156df93d6cfc585"`
[INFO] [stdout] 7f65141e76bcf7e27b3a4dba91a4c7ccd8a1acdc6a9087950156df93d6cfc585