[INFO] updating cached repository https://github.com/KoharaKazuya/forest
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f2ae009c6092d49bed24efcf1a261fdd4e8a7fe
[INFO] checking KoharaKazuya/forest against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoharaKazuya%2Fforest" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KoharaKazuya/forest on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/KoharaKazuya/forest
[INFO] finished tweaking git repo https://github.com/KoharaKazuya/forest
[INFO] tweaked toml for git repo https://github.com/KoharaKazuya/forest written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/KoharaKazuya/forest already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 14a002a901ffee5f1f8edc1a48e034defff2bd1ec41f9b77a9b9bca9d902bb8c
[INFO] running `"docker" "start" "-a" "14a002a901ffee5f1f8edc1a48e034defff2bd1ec41f9b77a9b9bca9d902bb8c"`
[INFO] [stderr]     Checking forest v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/tree_formatter.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 |   writer: &'a mut Write,
[INFO] [stderr]   |                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tree_formatter.rs:13:30
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn new(writer: &'a mut Write, ago: &str, agc: &str, ngo: &str, ngc: &str) -> Formatter<'a> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/tree_formatter.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 |   writer: &'a mut Write,
[INFO] [stderr]   |                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tree_formatter.rs:13:30
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn new(writer: &'a mut Write, ago: &str, agc: &str, ngo: &str, ngc: &str) -> Formatter<'a> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tree_formatter.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         write!(self.writer, "{}", match *shape {
[INFO] [stderr] 29 | |           Shape::Open => &self.ancestor_guide_open,
[INFO] [stderr] 30 | |           Shape::Close => &self.ancestor_guide_close,
[INFO] [stderr] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
[INFO] [stderr] 32 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tree_formatter.rs:39:7
[INFO] [stderr]    |
[INFO] [stderr] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tree_formatter.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         write!(self.writer, "{}", match *shape {
[INFO] [stderr] 29 | |           Shape::Open => &self.ancestor_guide_open,
[INFO] [stderr] 30 | |           Shape::Close => &self.ancestor_guide_close,
[INFO] [stderr] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
[INFO] [stderr] 32 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tree_formatter.rs:39:7
[INFO] [stderr]    |
[INFO] [stderr] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "14a002a901ffee5f1f8edc1a48e034defff2bd1ec41f9b77a9b9bca9d902bb8c"`
[INFO] running `"docker" "rm" "-f" "14a002a901ffee5f1f8edc1a48e034defff2bd1ec41f9b77a9b9bca9d902bb8c"`
[INFO] [stdout] 14a002a901ffee5f1f8edc1a48e034defff2bd1ec41f9b77a9b9bca9d902bb8c