[INFO] cloning repository https://github.com/jumang4423/nylang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jumang4423/nylang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjumang4423%2Fnylang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjumang4423%2Fnylang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d884b22420bfdeaab117e8dde2b42906c627eefa
[INFO] checking jumang4423/nylang against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjumang4423%2Fnylang" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jumang4423/nylang
[INFO] finished tweaking git repo https://github.com/jumang4423/nylang
[INFO] tweaked toml for git repo https://github.com/jumang4423/nylang written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jumang4423/nylang on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jumang4423/nylang 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.104
[INFO] [stderr]   Downloaded git2 v0.13.25
[INFO] [stderr]   Downloaded libgit2-sys v0.12.26+1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a45ff9964472ebb12d8e93a4d1a4cd1affd4cd28ae1a116a6ac5c2a0de6ab33
[INFO] running `Command { std: "docker" "start" "-a" "2a45ff9964472ebb12d8e93a4d1a4cd1affd4cd28ae1a116a6ac5c2a0de6ab33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a45ff9964472ebb12d8e93a4d1a4cd1affd4cd28ae1a116a6ac5c2a0de6ab33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a45ff9964472ebb12d8e93a4d1a4cd1affd4cd28ae1a116a6ac5c2a0de6ab33", kill_on_drop: false }`
[INFO] [stdout] 2a45ff9964472ebb12d8e93a4d1a4cd1affd4cd28ae1a116a6ac5c2a0de6ab33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b5c827c749161111999c197698c879da8eed0237d053565a0f019d735949576
[INFO] running `Command { std: "docker" "start" "-a" "8b5c827c749161111999c197698c879da8eed0237d053565a0f019d735949576", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking git2 v0.13.25
[INFO] [stderr]     Checking nylang v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `mutable_borrow_reservation_conflict` has been removed: now allowed, see issue #59159 <https://github.com/rust-lang/rust/issues/59159> for more information
[INFO] [stdout]    --> src/parser/parser.rs:132:11
[INFO] [stdout]     |
[INFO] [stdout] 132 |   #[allow(mutable_borrow_reservation_conflict)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `mutable_borrow_reservation_conflict` has been removed: now allowed, see issue #59159 <https://github.com/rust-lang/rust/issues/59159> for more information
[INFO] [stdout]    --> src/parser/parser.rs:132:11
[INFO] [stdout]     |
[INFO] [stdout] 132 |   #[allow(mutable_borrow_reservation_conflict)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `borrowed` is never read
[INFO] [stdout]   --> src/builtin/builtin.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |           borrowed = RefMut::map(borrowed, |s| {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `borrowed_is_found` is never read
[INFO] [stdout]   --> src/builtin/builtin.rs:78:11
[INFO] [stdout]    |
[INFO] [stdout] 78 |           borrowed_is_found = RefMut::map(borrowed_is_found, |s| {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builtin/builtin.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut is_found = false;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `borrowed` is never read
[INFO] [stdout]   --> src/builtin/builtin.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |           borrowed = RefMut::map(borrowed, |s| {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `borrowed_is_found` is never read
[INFO] [stdout]   --> src/builtin/builtin.rs:78:11
[INFO] [stdout]    |
[INFO] [stdout] 78 |           borrowed_is_found = RefMut::map(borrowed_is_found, |s| {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builtin/builtin.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut is_found = false;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/builtin/builtin.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | /     visit_dirs(Path::new(&cur_dir), &|entry| {
[INFO] [stdout] 69 | |       let path = entry.path();
[INFO] [stdout] 70 | |       if path.is_file() {
[INFO] [stdout] 71 | |         if path.to_str().unwrap().contains(&file_name.clone()) {
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |     });
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let _ = visit_dirs(Path::new(&cur_dir), &|entry| {
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/builtin/builtin.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | /     visit_dirs(Path::new(&cur_dir), &|entry| {
[INFO] [stdout] 69 | |       let path = entry.path();
[INFO] [stdout] 70 | |       if path.is_file() {
[INFO] [stdout] 71 | |         if path.to_str().unwrap().contains(&file_name.clone()) {
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |     });
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let _ = visit_dirs(Path::new(&cur_dir), &|entry| {
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.28s
[INFO] running `Command { std: "docker" "inspect" "8b5c827c749161111999c197698c879da8eed0237d053565a0f019d735949576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5c827c749161111999c197698c879da8eed0237d053565a0f019d735949576", kill_on_drop: false }`
[INFO] [stdout] 8b5c827c749161111999c197698c879da8eed0237d053565a0f019d735949576
