[INFO] cloning repository https://github.com/darthlukan/lynea
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/darthlukan/lynea" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarthlukan%2Flynea"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarthlukan%2Flynea'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] acf4f1e9e479d9abb495b22461d58d58e39893d6
[INFO] testing darthlukan/lynea against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarthlukan%2Flynea" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/darthlukan/lynea on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/darthlukan/lynea
[INFO] finished tweaking git repo https://github.com/darthlukan/lynea
[INFO] tweaked toml for git repo https://github.com/darthlukan/lynea written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/darthlukan/lynea already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0706c8b29446d0564a4b34f24b058f4e4888c75ad1c84c1e3aacfb79cd5f689
[INFO] running `"docker" "start" "-a" "c0706c8b29446d0564a4b34f24b058f4e4888c75ad1c84c1e3aacfb79cd5f689"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lynea v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use core::str::Lines;
[INFO] [stderr]   |     ^^^^ maybe a missing crate `core`?
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:18:67
[INFO] [stderr]    |
[INFO] [stderr] 18 |         Err(why) => panic!("Unable to open {0}: {1}", PIDONEPATH, Error::description(&why)),
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `lines` found for struct `std::fs::File` in the current scope
[INFO] [stderr]   --> src/main.rs:22:34
[INFO] [stderr]    |
[INFO] [stderr] 22 |       let mut lines: Vec<_> = file.lines();
[INFO] [stderr]    |                                    ^^^^^ method not found in `std::fs::File`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the method `lines` exists but the following trait bounds were not satisfied:
[INFO] [stderr]            `std::fs::File: std::io::BufRead`
[INFO] [stderr]            which is required by `&mut std::fs::File: std::io::BufRead`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:44:16
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn main() {
[INFO] [stderr]    |           - expected `()` because of default return type
[INFO] [stderr] ...
[INFO] [stderr] 44 |         return false;
[INFO] [stderr]    |                ^^^^^ expected `()`, found `bool`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `lynea`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c0706c8b29446d0564a4b34f24b058f4e4888c75ad1c84c1e3aacfb79cd5f689"`
[INFO] running `"docker" "rm" "-f" "c0706c8b29446d0564a4b34f24b058f4e4888c75ad1c84c1e3aacfb79cd5f689"`
[INFO] [stdout] c0706c8b29446d0564a4b34f24b058f4e4888c75ad1c84c1e3aacfb79cd5f689