[INFO] cloning repository https://github.com/deecewan/dotter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deecewan/dotter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeecewan%2Fdotter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeecewan%2Fdotter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1827754b09963a3e90ead18dee84b10ab8ca1f15
[INFO] checking deecewan/dotter against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeecewan%2Fdotter" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deecewan/dotter on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deecewan/dotter
[INFO] finished tweaking git repo https://github.com/deecewan/dotter
[INFO] tweaked toml for git repo https://github.com/deecewan/dotter written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/deecewan/dotter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] [stderr]   Downloaded clap v2.24.2
[INFO] [stderr]   Downloaded same-file v0.1.3
[INFO] [stderr]   Downloaded term_size v0.3.0
[INFO] [stderr]   Downloaded gcc v0.3.50
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.0
[INFO] [stderr]   Downloaded bitflags v0.8.2
[INFO] [stderr]   Downloaded num_cpus v1.5.1
[INFO] [stderr]   Downloaded atty v0.2.2
[INFO] [stderr]   Downloaded unicode-width v0.1.4
[INFO] [stderr]   Downloaded rayon-core v1.0.2
[INFO] [stderr]   Downloaded toml v0.4.1
[INFO] [stderr]   Downloaded deque v0.3.2
[INFO] [stderr]   Downloaded walkdir v1.0.7
[INFO] [stderr]   Downloaded untrusted v0.5.0
[INFO] [stderr]   Downloaded serde v1.0.8
[INFO] [stderr]   Downloaded vec_map v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71eb699d4a0818704e583b4816db560fcdce2686dd30c61982be001174264194
[INFO] running `Command { std: "docker" "start" "-a" "71eb699d4a0818704e583b4816db560fcdce2686dd30c61982be001174264194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71eb699d4a0818704e583b4816db560fcdce2686dd30c61982be001174264194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71eb699d4a0818704e583b4816db560fcdce2686dd30c61982be001174264194", kill_on_drop: false }`
[INFO] [stdout] 71eb699d4a0818704e583b4816db560fcdce2686dd30c61982be001174264194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2de8cbda57cdea99eab815a87acc907519502dd3486d3acc614639457a565712
[INFO] running `Command { std: "docker" "start" "-a" "2de8cbda57cdea99eab815a87acc907519502dd3486d3acc614639457a565712", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling rayon-core v1.0.2
[INFO] [stderr]    Compiling deque v0.3.2
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking untrusted v0.5.0
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.5.1
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking toml v0.4.1
[INFO] [stderr]    Compiling rayon v0.7.1
[INFO] [stderr]    Compiling ring v0.11.0
[INFO] [stderr]     Checking dotter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `open_in_place`
[INFO] [stdout]  --> src/secure.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ring::aead::{seal_in_place, open_in_place, AES_256_GCM, SealingKey};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `open_in_place`
[INFO] [stdout]  --> src/secure.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ring::aead::{seal_in_place, open_in_place, AES_256_GCM, SealingKey};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/checkin.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 let res = fs::copy(entry.path(), item_path);
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/checkin.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 let res = fs::create_dir(item_path);
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/checkin.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let res = unix::fs::symlink(new_path, path);
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/checkin.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 let res = fs::copy(entry.path(), item_path);
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/checkin.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 let res = fs::create_dir(item_path);
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/checkin.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let res = unix::fs::symlink(new_path, path);
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]  --> src/secure.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let res = random_nonce.fill(&mut nonce);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]  --> src/secure.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn secure(matches: &ArgMatches) {
[INFO] [stdout]   |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]  --> src/secure.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let res = random_nonce.fill(&mut nonce);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]  --> src/secure.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn secure(matches: &ArgMatches) {
[INFO] [stdout]   |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> src/secure.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for i in nonce.into_iter() {
[INFO] [stdout]    |                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for i in nonce.iter() {
[INFO] [stdout]    |                    ~~~~
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 11 -     for i in nonce.into_iter() {
[INFO] [stdout] 11 +     for i in nonce {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> src/secure.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for i in nonce.into_iter() {
[INFO] [stdout]    |                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for i in nonce.iter() {
[INFO] [stdout]    |                    ~~~~
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 11 -     for i in nonce.into_iter() {
[INFO] [stdout] 11 +     for i in nonce {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.19s
[INFO] running `Command { std: "docker" "inspect" "2de8cbda57cdea99eab815a87acc907519502dd3486d3acc614639457a565712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2de8cbda57cdea99eab815a87acc907519502dd3486d3acc614639457a565712", kill_on_drop: false }`
[INFO] [stdout] 2de8cbda57cdea99eab815a87acc907519502dd3486d3acc614639457a565712