[INFO] cloning repository https://github.com/rew150/rust-exercise-2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rew150/rust-exercise-2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frew150%2Frust-exercise-2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frew150%2Frust-exercise-2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 595f54113d8d78d556590e6077149a1fccf254f3
[INFO] checking rew150/rust-exercise-2 against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118833
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frew150%2Frust-exercise-2" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rew150/rust-exercise-2 on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rew150/rust-exercise-2
[INFO] finished tweaking git repo https://github.com/rew150/rust-exercise-2
[INFO] tweaked toml for git repo https://github.com/rew150/rust-exercise-2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rew150/rust-exercise-2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking rew150/rust-exercise-2 against try#29596578cb5035fa2b7ac7fbdfea23fab38836e7 for pr-118833
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frew150%2Frust-exercise-2" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rew150/rust-exercise-2 on toolchain 29596578cb5035fa2b7ac7fbdfea23fab38836e7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rew150/rust-exercise-2
[INFO] finished tweaking git repo https://github.com/rew150/rust-exercise-2
[INFO] tweaked toml for git repo https://github.com/rew150/rust-exercise-2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rew150/rust-exercise-2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61831fcd2fe94624a18f77e9cb39e66f3e9caa05b3657e52e2f7c37fa6bcf657
[INFO] running `Command { std: "docker" "start" "-a" "61831fcd2fe94624a18f77e9cb39e66f3e9caa05b3657e52e2f7c37fa6bcf657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61831fcd2fe94624a18f77e9cb39e66f3e9caa05b3657e52e2f7c37fa6bcf657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61831fcd2fe94624a18f77e9cb39e66f3e9caa05b3657e52e2f7c37fa6bcf657", kill_on_drop: false }`
[INFO] [stdout] 61831fcd2fe94624a18f77e9cb39e66f3e9caa05b3657e52e2f7c37fa6bcf657
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69ec2be29190aa1f1d72d1f6141be4b2f5ae4036ae08f588b5eb154bf6f6159c
[INFO] running `Command { std: "docker" "start" "-a" "69ec2be29190aa1f1d72d1f6141be4b2f5ae4036ae08f588b5eb154bf6f6159c", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-exercise-2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0597]: `b` does not live long enough
[INFO] [stdout]   --> src/main.rs:5:14
[INFO] [stdout]    |
[INFO] [stdout] 4  |       let b = String::from("Hello");
[INFO] [stdout]    |           - binding `b` declared here
[INFO] [stdout] 5  |       let a = &b[..];
[INFO] [stdout]    |                ^ borrowed value does not live long enough
[INFO] [stdout] 6  | /     thread::spawn(move || {
[INFO] [stdout] 7  | |         println!("{}", a);
[INFO] [stdout] 8  | |     });
[INFO] [stdout]    | |______- argument requires that `b` is borrowed for `'static`
[INFO] [stdout] ...
[INFO] [stdout] 11 |   }
[INFO] [stdout]    |   - `b` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `b` does not live long enough
[INFO] [stdout]   --> src/main.rs:5:14
[INFO] [stdout]    |
[INFO] [stdout] 4  |       let b = String::from("Hello");
[INFO] [stdout]    |           - binding `b` declared here
[INFO] [stdout] 5  |       let a = &b[..];
[INFO] [stdout]    |                ^ borrowed value does not live long enough
[INFO] [stdout] 6  | /     thread::spawn(move || {
[INFO] [stdout] 7  | |         println!("{}", a);
[INFO] [stdout] 8  | |     });
[INFO] [stdout]    | |______- argument requires that `b` is borrowed for `'static`
[INFO] [stdout] ...
[INFO] [stdout] 11 |   }
[INFO] [stdout]    |   - `b` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-exercise-2` (bin "rust-exercise-2" test) due to 2 previous errors
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-exercise-2` (bin "rust-exercise-2") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "69ec2be29190aa1f1d72d1f6141be4b2f5ae4036ae08f588b5eb154bf6f6159c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ec2be29190aa1f1d72d1f6141be4b2f5ae4036ae08f588b5eb154bf6f6159c", kill_on_drop: false }`
[INFO] [stdout] 69ec2be29190aa1f1d72d1f6141be4b2f5ae4036ae08f588b5eb154bf6f6159c