[INFO] cloning repository https://github.com/lamogura/minigrep.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lamogura/minigrep.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamogura%2Fminigrep.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamogura%2Fminigrep.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48291a489f620e97ac9212550ecee9a8a94080a4
[INFO] checking lamogura/minigrep.rs against master#d255c6a57c393db6221b1ff700daea478436f1cd for pr-122317
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamogura%2Fminigrep.rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lamogura/minigrep.rs on toolchain d255c6a57c393db6221b1ff700daea478436f1cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d255c6a57c393db6221b1ff700daea478436f1cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lamogura/minigrep.rs
[INFO] finished tweaking git repo https://github.com/lamogura/minigrep.rs
[INFO] tweaked toml for git repo https://github.com/lamogura/minigrep.rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lamogura/minigrep.rs 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" "+d255c6a57c393db6221b1ff700daea478436f1cd" "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 lamogura/minigrep.rs against try#1f7553361c08f8eafdc645e09215667278ab86f4 for pr-122317
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamogura%2Fminigrep.rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lamogura/minigrep.rs on toolchain 1f7553361c08f8eafdc645e09215667278ab86f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7553361c08f8eafdc645e09215667278ab86f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lamogura/minigrep.rs
[INFO] finished tweaking git repo https://github.com/lamogura/minigrep.rs
[INFO] tweaked toml for git repo https://github.com/lamogura/minigrep.rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lamogura/minigrep.rs 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" "+1f7553361c08f8eafdc645e09215667278ab86f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1f7553361c08f8eafdc645e09215667278ab86f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1470ffd5fd924c1bd6863397dba9c1c97d6b59939567564b559dbe78dec2bfa2
[INFO] running `Command { std: "docker" "start" "-a" "1470ffd5fd924c1bd6863397dba9c1c97d6b59939567564b559dbe78dec2bfa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1470ffd5fd924c1bd6863397dba9c1c97d6b59939567564b559dbe78dec2bfa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1470ffd5fd924c1bd6863397dba9c1c97d6b59939567564b559dbe78dec2bfa2", kill_on_drop: false }`
[INFO] [stdout] 1470ffd5fd924c1bd6863397dba9c1c97d6b59939567564b559dbe78dec2bfa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1f7553361c08f8eafdc645e09215667278ab86f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03103b616f03c6ae08930243ec0e749c166be801390153489ced34a25ec942ec
[INFO] running `Command { std: "docker" "start" "-a" "03103b616f03c6ae08930243ec0e749c166be801390153489ced34a25ec942ec", kill_on_drop: false }`
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `String: Pattern<'_>` is not satisfied
[INFO] [stdout]   --> src/lib.rs:41:34
[INFO] [stdout]    |
[INFO] [stdout] 41 |     .filter(|line| line.contains(query))
[INFO] [stdout]    |                         -------- ^^^^^ the trait `Pattern<'_>` is not implemented for `String`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: required for `String` to implement `Pattern<'_>`
[INFO] [stdout] note: required by a bound in `core::str::<impl str>::contains`
[INFO] [stdout]   --> /rustc/1f7553361c08f8eafdc645e09215667278ab86f4/library/core/src/str/mod.rs:1152:5
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 41 |     .filter(|line| line.contains(&query))
[INFO] [stdout]    |                                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `String: Pattern<'_>` is not satisfied
[INFO] [stdout]   --> src/lib.rs:41:34
[INFO] [stdout]    |
[INFO] [stdout] 41 |     .filter(|line| line.contains(query))
[INFO] [stdout]    |                         -------- ^^^^^ the trait `Pattern<'_>` is not implemented for `String`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: required for `String` to implement `Pattern<'_>`
[INFO] [stdout] note: required by a bound in `core::str::<impl str>::contains`
[INFO] [stdout]   --> /rustc/1f7553361c08f8eafdc645e09215667278ab86f4/library/core/src/str/mod.rs:1152:5
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 41 |     .filter(|line| line.contains(&query))
[INFO] [stdout]    |                                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: a value of type `Vec<&str>` cannot be built from an iterator over elements of type `String`
[INFO] [stdout]   --> src/lib.rs:42:6
[INFO] [stdout]    |
[INFO] [stdout] 42 |     .collect()
[INFO] [stdout]    |      ^^^^^^^ value of type `Vec<&str>` cannot be built from `std::iter::Iterator<Item=String>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromIterator<String>` is not implemented for `Vec<&str>`
[INFO] [stdout]    = help: the trait `FromIterator<&str>` is implemented for `Vec<&str>`
[INFO] [stdout]    = help: for that trait implementation, expected `&str`, found `String`
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]   --> src/lib.rs:40:6
[INFO] [stdout]    |
[INFO] [stdout] 38 |   contents
[INFO] [stdout]    |   -------- this expression has type `&str`
[INFO] [stdout] 39 |     .lines()
[INFO] [stdout]    |      ------- `Iterator::Item` is `&str` here
[INFO] [stdout] 40 |     .map(|line| line.to_lowercase())
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Iterator::Item` changed to `String` here
[INFO] [stdout] 41 |     .filter(|line| line.contains(query))
[INFO] [stdout]    |      ----------------------------------- `Iterator::Item` remains `String` here
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]   --> /rustc/1f7553361c08f8eafdc645e09215667278ab86f4/library/core/src/iter/traits/iterator.rs:1999:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: a value of type `Vec<&str>` cannot be built from an iterator over elements of type `String`
[INFO] [stdout]   --> src/lib.rs:42:6
[INFO] [stdout]    |
[INFO] [stdout] 42 |     .collect()
[INFO] [stdout]    |      ^^^^^^^ value of type `Vec<&str>` cannot be built from `std::iter::Iterator<Item=String>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromIterator<String>` is not implemented for `Vec<&str>`
[INFO] [stdout]    = help: the trait `FromIterator<&str>` is implemented for `Vec<&str>`
[INFO] [stdout]    = help: for that trait implementation, expected `&str`, found `String`
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]   --> src/lib.rs:40:6
[INFO] [stdout]    |
[INFO] [stdout] 38 |   contents
[INFO] [stdout]    |   -------- this expression has type `&str`
[INFO] [stdout] 39 |     .lines()
[INFO] [stdout]    |      ------- `Iterator::Item` is `&str` here
[INFO] [stdout] 40 |     .map(|line| line.to_lowercase())
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Iterator::Item` changed to `String` here
[INFO] [stdout] 41 |     .filter(|line| line.contains(query))
[INFO] [stdout]    |      ----------------------------------- `Iterator::Item` remains `String` here
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]   --> /rustc/1f7553361c08f8eafdc645e09215667278ab86f4/library/core/src/iter/traits/iterator.rs:1999:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minigrep` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `minigrep` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "03103b616f03c6ae08930243ec0e749c166be801390153489ced34a25ec942ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03103b616f03c6ae08930243ec0e749c166be801390153489ced34a25ec942ec", kill_on_drop: false }`
[INFO] [stdout] 03103b616f03c6ae08930243ec0e749c166be801390153489ced34a25ec942ec