[INFO] cloning repository https://github.com/FredericHeem/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FredericHeem/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericHeem%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericHeem%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ba1425ab145779f67b9ef2474e867945577c80b
[INFO] checking FredericHeem/rust-by-example/5ba1425ab145779f67b9ef2474e867945577c80b against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericHeem%2Frust-by-example" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FredericHeem/rust-by-example on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FredericHeem/rust-by-example
[INFO] finished tweaking git repo https://github.com/FredericHeem/rust-by-example
[INFO] tweaked toml for git repo https://github.com/FredericHeem/rust-by-example written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FredericHeem/rust-by-example 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deque v0.3.2
[INFO] [stderr]   Downloaded lazy_static v0.2.8
[INFO] [stderr]   Downloaded rayon v0.7.1
[INFO] [stderr]   Downloaded time v0.1.37
[INFO] [stderr]   Downloaded num-traits v0.1.37
[INFO] [stderr]   Downloaded rayon-core v1.0.2
[INFO] [stderr]   Downloaded num_cpus v1.5.0
[INFO] [stderr]   Downloaded num-integer v0.1.34
[INFO] [stderr]   Downloaded redox_syscall v0.1.17
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded num v0.1.37
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e692b49edcca2edb92e0a9fb3c4f50dba2d2a9167cffe65be2d86ff62b4dd54
[INFO] running `Command { std: "docker" "start" "-a" "7e692b49edcca2edb92e0a9fb3c4f50dba2d2a9167cffe65be2d86ff62b4dd54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e692b49edcca2edb92e0a9fb3c4f50dba2d2a9167cffe65be2d86ff62b4dd54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e692b49edcca2edb92e0a9fb3c4f50dba2d2a9167cffe65be2d86ff62b4dd54", kill_on_drop: false }`
[INFO] [stdout] 7e692b49edcca2edb92e0a9fb3c4f50dba2d2a9167cffe65be2d86ff62b4dd54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a34ffc20337254d0c807fb74d877a1f08d6bef85ab9a1369033e675a04eef25d
[INFO] running `Command { std: "docker" "start" "-a" "a34ffc20337254d0c807fb74d877a1f08d6bef85ab9a1369033e675a04eef25d", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling rayon-core v1.0.2
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking num_cpus v1.5.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking rayon v0.7.1
[INFO] [stderr]     Checking rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/tree.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Some(root) => println!("has root"),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `key_pair` as mutable, as it is a captured variable in a `Fn` closure
[INFO] [stdout]   --> src/parallel.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     passwords.par_iter().find_any(|&&x| check_password(x, &mut key_pair));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-by-example` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/parallel.rs:27:46
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let result = check_passwords(&passwords, &mut key_pair);
[INFO] [stdout]    |                  ---------------             ^^^^^^^^^^^^^ expected `String`, found `&mut String`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/parallel.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn check_passwords(passwords: &Vec<&str>, mut key_pair: String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^                        --------------------
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]    |
[INFO] [stdout] 27 -     let result = check_passwords(&passwords, &mut key_pair);
[INFO] [stdout] 27 +     let result = check_passwords(&passwords, key_pair);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/tree.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Some(root) => println!("has root"),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `key_pair` as mutable, as it is a captured variable in a `Fn` closure
[INFO] [stdout]   --> src/parallel.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     passwords.par_iter().find_any(|&&x| check_password(x, &mut key_pair));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0596.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-by-example` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a34ffc20337254d0c807fb74d877a1f08d6bef85ab9a1369033e675a04eef25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a34ffc20337254d0c807fb74d877a1f08d6bef85ab9a1369033e675a04eef25d", kill_on_drop: false }`
[INFO] [stdout] a34ffc20337254d0c807fb74d877a1f08d6bef85ab9a1369033e675a04eef25d