[INFO] updating cached repository killercup/limerick_ebooks
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/killercup/limerick_ebooks
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/limerick_ebooks" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/limerick_ebooks"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/limerick_ebooks'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/limerick_ebooks" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/killercup/limerick_ebooks"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/killercup/limerick_ebooks'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54c596866e8275d5b141ff7ac03342d7bab7d475
[INFO] sha for GitHub repo killercup/limerick_ebooks: 54c596866e8275d5b141ff7ac03342d7bab7d475
[INFO] validating manifest of killercup/limerick_ebooks on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of killercup/limerick_ebooks on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing killercup/limerick_ebooks
[INFO] finished frobbing killercup/limerick_ebooks
[INFO] frobbed toml for killercup/limerick_ebooks written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/limerick_ebooks/Cargo.toml
[INFO] started frobbing killercup/limerick_ebooks
[INFO] finished frobbing killercup/limerick_ebooks
[INFO] frobbed toml for killercup/limerick_ebooks written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/killercup/limerick_ebooks/Cargo.toml
[INFO] crate killercup/limerick_ebooks already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking killercup/limerick_ebooks against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-4/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/limerick_ebooks:/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=forbid" "-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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fe41f4bbca9dc4709ee5745e8882d20204d82a9f0cf665494ac2ef46dd3b459a
[INFO] running `"docker" "start" "-a" "fe41f4bbca9dc4709ee5745e8882d20204d82a9f0cf665494ac2ef46dd3b459a"`
[INFO] [stderr]     Checking arena-tree v0.3.0
[INFO] [stderr]     Checking typed-arena v1.3.0
[INFO] [stderr]     Checking quick-error v1.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]     Checking thread-id v3.1.0
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking serde_yaml v0.7.1
[INFO] [stderr]    Compiling structopt-derive v0.1.0
[INFO] [stderr]     Checking structopt v0.1.0
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking comrak v0.1.4
[INFO] [stderr]     Checking handlebars v0.27.0
[INFO] [stderr]     Checking backtrace v0.3.2
[INFO] [stderr]     Checking error-chain v0.11.0-rc.2
[INFO] [stderr]     Checking limericks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | / error_chain! {
[INFO] [stderr] 67 | |     foreign_links {
[INFO] [stderr] 68 | |         Io(::std::io::Error);
[INFO] [stderr] 69 | |         Handlebars(::handlebars::TemplateRenderError);
[INFO] [stderr] 70 | |         Yaml(::yaml::Error);
[INFO] [stderr] 71 | |     }
[INFO] [stderr] 72 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | / error_chain! {
[INFO] [stderr] 67 | |     foreign_links {
[INFO] [stderr] 68 | |         Io(::std::io::Error);
[INFO] [stderr] 69 | |         Handlebars(::handlebars::TemplateRenderError);
[INFO] [stderr] 70 | |         Yaml(::yaml::Error);
[INFO] [stderr] 71 | |     }
[INFO] [stderr] 72 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | / error_chain! {
[INFO] [stderr] 67 | |     foreign_links {
[INFO] [stderr] 68 | |         Io(::std::io::Error);
[INFO] [stderr] 69 | |         Handlebars(::handlebars::TemplateRenderError);
[INFO] [stderr] 70 | |         Yaml(::yaml::Error);
[INFO] [stderr] 71 | |     }
[INFO] [stderr] 72 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | / error_chain! {
[INFO] [stderr] 67 | |     foreign_links {
[INFO] [stderr] 68 | |         Io(::std::io::Error);
[INFO] [stderr] 69 | |         Handlebars(::handlebars::TemplateRenderError);
[INFO] [stderr] 70 | |         Yaml(::yaml::Error);
[INFO] [stderr] 71 | |     }
[INFO] [stderr] 72 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.40s
[INFO] running `"docker" "inspect" "fe41f4bbca9dc4709ee5745e8882d20204d82a9f0cf665494ac2ef46dd3b459a"`
[INFO] running `"docker" "rm" "-f" "fe41f4bbca9dc4709ee5745e8882d20204d82a9f0cf665494ac2ef46dd3b459a"`
[INFO] [stdout] fe41f4bbca9dc4709ee5745e8882d20204d82a9f0cf665494ac2ef46dd3b459a