[INFO] updating cached repository https://github.com/tacomorphism/rustbook
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1d4f543ba860b7dc162869cdbb704d35b3e33f7
[INFO] checking tacomorphism/rustbook against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftacomorphism%2Frustbook" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tacomorphism/rustbook on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tacomorphism/rustbook
[INFO] finished tweaking git repo https://github.com/tacomorphism/rustbook
[INFO] tweaked toml for git repo https://github.com/tacomorphism/rustbook written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tacomorphism/rustbook already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 18d148250dfbc63d1f28bddefbf7b0956c7957eeaf8fcf7c8fcc902ae3b61bae
[INFO] running `"docker" "start" "-a" "18d148250dfbc63d1f28bddefbf7b0956c7957eeaf8fcf7c8fcc902ae3b61bae"`
[INFO] [stderr]     Checking book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0106]: missing lifetime specifier
[INFO] [stderr]  --> src/ch10.rs:2:41
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub fn longest(x: &str, y: &str) -> &str {
[INFO] [stderr]   |                       ----     ----     ^ expected named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `x` or `y`
[INFO] [stderr] help: consider introducing a named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
[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 E0106`.
[INFO] [stderr] error: could not compile `book`.
[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[E0106]: missing lifetime specifier
[INFO] [stderr]  --> src/ch10.rs:2:41
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub fn longest(x: &str, y: &str) -> &str {
[INFO] [stderr]   |                       ----     ----     ^ expected named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr]   = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `x` or `y`
[INFO] [stderr] help: consider introducing a named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
[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 E0106`.
[INFO] [stderr] error: could not compile `book`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "18d148250dfbc63d1f28bddefbf7b0956c7957eeaf8fcf7c8fcc902ae3b61bae"`
[INFO] running `"docker" "rm" "-f" "18d148250dfbc63d1f28bddefbf7b0956c7957eeaf8fcf7c8fcc902ae3b61bae"`
[INFO] [stdout] 18d148250dfbc63d1f28bddefbf7b0956c7957eeaf8fcf7c8fcc902ae3b61bae
