[INFO] cloning repository https://github.com/faizilham/ocha
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/faizilham/ocha" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaizilham%2Focha", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaizilham%2Focha'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ed78ff3c811568319b995edea90d26631ad5e07
[INFO] checking faizilham/ocha against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaizilham%2Focha" "/workspace/builds/worker-82/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-82/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/faizilham/ocha 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/faizilham/ocha
[INFO] finished tweaking git repo https://github.com/faizilham/ocha
[INFO] tweaked toml for git repo https://github.com/faizilham/ocha written to /workspace/builds/worker-82/source/Cargo.toml
[INFO] crate git repo https://github.com/faizilham/ocha 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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] 2e123a78214e8870e6c0ae138b01b69f254914a93de3322165dffebfa090637c
[INFO] running `Command { std: "docker" "start" "-a" "2e123a78214e8870e6c0ae138b01b69f254914a93de3322165dffebfa090637c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e123a78214e8870e6c0ae138b01b69f254914a93de3322165dffebfa090637c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e123a78214e8870e6c0ae138b01b69f254914a93de3322165dffebfa090637c", kill_on_drop: false }`
[INFO] [stdout] 2e123a78214e8870e6c0ae138b01b69f254914a93de3322165dffebfa090637c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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] 80a6960b8e785c712ec7895fb349edef6ab4afbfcb69637b42a779d614e5727b
[INFO] running `Command { std: "docker" "start" "-a" "80a6960b8e785c712ec7895fb349edef6ab4afbfcb69637b42a779d614e5727b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ocha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/heap.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |     objs: Vec<Rc<Traceable>>
[INFO] [stdout]    |                  ^^^^^^^^^ help: use `dyn`: `dyn Traceable`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/resolver/mod.rs:120:26
[INFO] [stdout]     |
[INFO] [stdout] 120 | type ExprResult = Result<(bool), Exception>; // is_capturing
[INFO] [stdout]     |                          ^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:28:50
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn get_traceable(value: &Value) -> Option<Rc<Traceable>> {
[INFO] [stdout]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn Traceable`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:98:18
[INFO] [stdout]    |
[INFO] [stdout] 98 |     io: &'io mut OchaIO
[INFO] [stdout]    |                  ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:104:46
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn new (module: Module, io: &'io mut OchaIO) -> VM {
[INFO] [stdout]     |                                              ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn run_file_with_io(filename : String, io: &mut OchaIO) -> Result<(), ()> {
[INFO] [stdout]    |                                                 ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:35:49
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn read_file_with_io (filename : &str, io: &mut OchaIO) -> Result<String, ()> {
[INFO] [stdout]    |                                                 ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:37
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn execute(module: Module, io: &mut OchaIO) -> Result<(), Exception> {
[INFO] [stdout]    |                                     ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn report_exception(io: &mut OchaIO, exception: Exception) -> () {
[INFO] [stdout]    |                              ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:72:31
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn report_exceptions(io: &mut OchaIO, exceptions: Vec<Exception>) -> () {
[INFO] [stdout]    |                               ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/heap.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |     objs: Vec<Rc<Traceable>>
[INFO] [stdout]    |                  ^^^^^^^^^ help: use `dyn`: `dyn Traceable`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/resolver/mod.rs:120:26
[INFO] [stdout]     |
[INFO] [stdout] 120 | type ExprResult = Result<(bool), Exception>; // is_capturing
[INFO] [stdout]     |                          ^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:28:50
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn get_traceable(value: &Value) -> Option<Rc<Traceable>> {
[INFO] [stdout]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn Traceable`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:98:18
[INFO] [stdout]    |
[INFO] [stdout] 98 |     io: &'io mut OchaIO
[INFO] [stdout]    |                  ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:104:46
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn new (module: Module, io: &'io mut OchaIO) -> VM {
[INFO] [stdout]     |                                              ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn run_file_with_io(filename : String, io: &mut OchaIO) -> Result<(), ()> {
[INFO] [stdout]    |                                                 ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:35:49
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn read_file_with_io (filename : &str, io: &mut OchaIO) -> Result<String, ()> {
[INFO] [stdout]    |                                                 ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:37
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn execute(module: Module, io: &mut OchaIO) -> Result<(), Exception> {
[INFO] [stdout]    |                                     ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn report_exception(io: &mut OchaIO, exception: Exception) -> () {
[INFO] [stdout]    |                              ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:72:31
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn report_exceptions(io: &mut OchaIO, exceptions: Vec<Exception>) -> () {
[INFO] [stdout]    |                               ^^^^^^ help: use `dyn`: `dyn OchaIO`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.46s
[INFO] running `Command { std: "docker" "inspect" "80a6960b8e785c712ec7895fb349edef6ab4afbfcb69637b42a779d614e5727b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80a6960b8e785c712ec7895fb349edef6ab4afbfcb69637b42a779d614e5727b", kill_on_drop: false }`
[INFO] [stdout] 80a6960b8e785c712ec7895fb349edef6ab4afbfcb69637b42a779d614e5727b