[INFO] updating cached repository yoan-durand/clir
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yoan-durand/clir
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yoan-durand/clir" "work/ex/beta-1.38-1/sources/1.37.0/gh/yoan-durand/clir"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yoan-durand/clir'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yoan-durand/clir" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoan-durand/clir"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoan-durand/clir'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c2493b9d09167f682262b4c191cfef18bf0be1c
[INFO] sha for GitHub repo yoan-durand/clir: 3c2493b9d09167f682262b4c191cfef18bf0be1c
[INFO] validating manifest of yoan-durand/clir 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 yoan-durand/clir 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 yoan-durand/clir
[INFO] finished frobbing yoan-durand/clir
[INFO] frobbed toml for yoan-durand/clir written to work/ex/beta-1.38-1/sources/1.37.0/gh/yoan-durand/clir/Cargo.toml
[INFO] started frobbing yoan-durand/clir
[INFO] finished frobbing yoan-durand/clir
[INFO] frobbed toml for yoan-durand/clir written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoan-durand/clir/Cargo.toml
[INFO] crate yoan-durand/clir 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing yoan-durand/clir 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoan-durand/clir:/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] 9db8639f8e35dd126bc8d44d80d549106d7cd6b67dfb2d607098c0211bf134df
[INFO] running `"docker" "start" "-a" "9db8639f8e35dd126bc8d44d80d549106d7cd6b67dfb2d607098c0211bf134df"`
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling structopt-derive v0.2.16
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling structopt v0.2.16
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling exitfailure v0.5.1
[INFO] [stderr]    Compiling clir v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `with_context` found for type `std::result::Result<std::string::String, std::io::Error>` in the current scope
[INFO] [stderr]   --> src/main.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 |         .with_context(|_| format!("could not read file `{}`", path))?;
[INFO] [stderr]    |          ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]    |
[INFO] [stderr] 1  | use failure::result_ext::ResultExt;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `clir`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9db8639f8e35dd126bc8d44d80d549106d7cd6b67dfb2d607098c0211bf134df"`
[INFO] running `"docker" "rm" "-f" "9db8639f8e35dd126bc8d44d80d549106d7cd6b67dfb2d607098c0211bf134df"`
[INFO] [stdout] 9db8639f8e35dd126bc8d44d80d549106d7cd6b67dfb2d607098c0211bf134df