[INFO] cloning repository https://github.com/tirr-c/hyeong-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tirr-c/hyeong-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftirr-c%2Fhyeong-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftirr-c%2Fhyeong-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3427a1cc00311e63579a0bac2203ba3f222ce31
[INFO] checking tirr-c/hyeong-rs against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftirr-c%2Fhyeong-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tirr-c/hyeong-rs on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tirr-c/hyeong-rs
[INFO] finished tweaking git repo https://github.com/tirr-c/hyeong-rs
[INFO] tweaked toml for git repo https://github.com/tirr-c/hyeong-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/tirr-c/hyeong-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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 term_size v0.2.3
[INFO] [stderr]   Downloaded clap v2.20.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 826d1bc0a20b96bbab12b43b1084e6f7c441e401ac856bfb5b8908cb29e24caa
[INFO] running `Command { std: "docker" "start" "-a" "826d1bc0a20b96bbab12b43b1084e6f7c441e401ac856bfb5b8908cb29e24caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "826d1bc0a20b96bbab12b43b1084e6f7c441e401ac856bfb5b8908cb29e24caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "826d1bc0a20b96bbab12b43b1084e6f7c441e401ac856bfb5b8908cb29e24caa", kill_on_drop: false }`
[INFO] [stdout] 826d1bc0a20b96bbab12b43b1084e6f7c441e401ac856bfb5b8908cb29e24caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a671f70aaa75c3455e940db8949d322daf23c332b3667a85f6a20f45da49fea
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6a671f70aaa75c3455e940db8949d322daf23c332b3667a85f6a20f45da49fea", kill_on_drop: false }`
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking clap v2.20.5
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking rshyeong v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/stack.rs:130:46
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn selected_stack_mut(&mut self) -> &mut HyeongStack {
[INFO] [stdout]     |                                              ^^^^^^^^^^^ help: use `dyn`: `dyn HyeongStack`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/stack.rs:135:48
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn stack_mut(&mut self, id: usize) -> &mut HyeongStack {
[INFO] [stdout]     |                                                ^^^^^^^^^^^ help: use `dyn`: `dyn HyeongStack`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/stack.rs:130:46
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn selected_stack_mut(&mut self) -> &mut HyeongStack {
[INFO] [stdout]     |                                              ^^^^^^^^^^^ help: use `dyn`: `dyn HyeongStack`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/stack.rs:135:48
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn stack_mut(&mut self, id: usize) -> &mut HyeongStack {
[INFO] [stdout]     |                                                ^^^^^^^^^^^ help: use `dyn`: `dyn HyeongStack`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let stdin: HyeongReadStack<Box<Read>> = if input_file == "-" {
[INFO] [stdout]    |                                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:43:38
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let stdout: HyeongWriteStack<Box<Write>> = if output_file == "-" {
[INFO] [stdout]    |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let stdin: HyeongReadStack<Box<Read>> = if input_file == "-" {
[INFO] [stdout]    |                                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:43:38
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let stdout: HyeongWriteStack<Box<Write>> = if output_file == "-" {
[INFO] [stdout]    |                                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `Command { std: "docker" "inspect" "6a671f70aaa75c3455e940db8949d322daf23c332b3667a85f6a20f45da49fea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a671f70aaa75c3455e940db8949d322daf23c332b3667a85f6a20f45da49fea", kill_on_drop: false }`
[INFO] [stdout] 6a671f70aaa75c3455e940db8949d322daf23c332b3667a85f6a20f45da49fea