[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] testing faizilham/ocha against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaizilham%2Focha" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/faizilham/ocha on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-8/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19bc2fc58e1e54f15af69cecb1deb688fd84b96d263e3a0af0e30c602503f07c
[INFO] running `Command { std: "docker" "start" "-a" "19bc2fc58e1e54f15af69cecb1deb688fd84b96d263e3a0af0e30c602503f07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19bc2fc58e1e54f15af69cecb1deb688fd84b96d263e3a0af0e30c602503f07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19bc2fc58e1e54f15af69cecb1deb688fd84b96d263e3a0af0e30c602503f07c", kill_on_drop: false }`
[INFO] [stdout] 19bc2fc58e1e54f15af69cecb1deb688fd84b96d263e3a0af0e30c602503f07c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e61ca4f71ceba23460ed6ab674ef7544cdd445e5048fb9f0f913a6403b1d9e62
[INFO] running `Command { std: "docker" "start" "-a" "e61ca4f71ceba23460ed6ab674ef7544cdd445e5048fb9f0f913a6403b1d9e62", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 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/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 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/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 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/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 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/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 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/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 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/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 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/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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "e61ca4f71ceba23460ed6ab674ef7544cdd445e5048fb9f0f913a6403b1d9e62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61ca4f71ceba23460ed6ab674ef7544cdd445e5048fb9f0f913a6403b1d9e62", kill_on_drop: false }`
[INFO] [stdout] e61ca4f71ceba23460ed6ab674ef7544cdd445e5048fb9f0f913a6403b1d9e62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc6a9a3354184968c8ece1671d51f3b86e6cc7d8f8fa90e532b88ee43d8eacee
[INFO] running `Command { std: "docker" "start" "-a" "dc6a9a3354184968c8ece1671d51f3b86e6cc7d8f8fa90e532b88ee43d8eacee", kill_on_drop: false }`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ocha v0.1.0 (/opt/rustwide/workdir)
[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 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/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 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/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 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/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 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/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 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/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 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/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 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/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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 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/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 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/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 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/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 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/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 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/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 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/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 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/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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "dc6a9a3354184968c8ece1671d51f3b86e6cc7d8f8fa90e532b88ee43d8eacee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc6a9a3354184968c8ece1671d51f3b86e6cc7d8f8fa90e532b88ee43d8eacee", kill_on_drop: false }`
[INFO] [stdout] dc6a9a3354184968c8ece1671d51f3b86e6cc7d8f8fa90e532b88ee43d8eacee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db69bbbc98ec84c4abdf29b1697bd3ab553583d361a3f998f037f06ec6a7cd9e
[INFO] running `Command { std: "docker" "start" "-a" "db69bbbc98ec84c4abdf29b1697bd3ab553583d361a3f998f037f06ec6a7cd9e", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/heap.rs:40:18
[INFO] [stderr]    |
[INFO] [stderr] 40 |     objs: Vec<Rc<Traceable>>
[INFO] [stderr]    |                  ^^^^^^^^^ help: use `dyn`: `dyn Traceable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/resolver/mod.rs:120:26
[INFO] [stderr]     |
[INFO] [stderr] 120 | type ExprResult = Result<(bool), Exception>; // is_capturing
[INFO] [stderr]     |                          ^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/value.rs:28:50
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn get_traceable(value: &Value) -> Option<Rc<Traceable>> {
[INFO] [stderr]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn Traceable`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm.rs:98:18
[INFO] [stderr]    |
[INFO] [stderr] 98 |     io: &'io mut OchaIO
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn OchaIO`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm.rs:104:46
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn new (module: Module, io: &'io mut OchaIO) -> VM {
[INFO] [stderr]     |                                              ^^^^^^ help: use `dyn`: `dyn OchaIO`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn run_file_with_io(filename : String, io: &mut OchaIO) -> Result<(), ()> {
[INFO] [stderr]    |                                                 ^^^^^^ help: use `dyn`: `dyn OchaIO`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:35:49
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn read_file_with_io (filename : &str, io: &mut OchaIO) -> Result<String, ()> {
[INFO] [stderr]    |                                                 ^^^^^^ help: use `dyn`: `dyn OchaIO`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:61:37
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn execute(module: Module, io: &mut OchaIO) -> Result<(), Exception> {
[INFO] [stderr]    |                                     ^^^^^^ help: use `dyn`: `dyn OchaIO`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:67:30
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn report_exception(io: &mut OchaIO, exception: Exception) -> () {
[INFO] [stderr]    |                              ^^^^^^ help: use `dyn`: `dyn OchaIO`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:72:31
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn report_exceptions(io: &mut OchaIO, exceptions: Vec<Exception>) -> () {
[INFO] [stderr]    |                               ^^^^^^ help: use `dyn`: `dyn OchaIO`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `ocha` (lib) generated 10 warnings
[INFO] [stderr] warning: `ocha` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ocha-f10021f4f2317428)
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test::test_err_parser ... ok
[INFO] [stdout] test test::test_err_resolver ... ok
[INFO] [stdout] test test::test_condition ... ok
[INFO] [stdout] test test::test_expression ... ok
[INFO] [stdout] test test::test_global ... ok
[INFO] [stdout] test test::test_local_scope ... ok
[INFO] [stdout] test test::test_list ... ok
[INFO] [stdout] test test::test_closure ... ok
[INFO] [stdout] test test::test_function ... ok
[INFO] [stdout] test test::test_closure_complex ... ok
[INFO] [stdout] test test::test_loop ... ok
[INFO] [stdout] test test::test_variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ocha-06b6aafab8dc65cf)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ocha
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/resolver/mod.rs:120:26
[INFO] [stderr]     |
[INFO] [stderr] 120 | type ExprResult = Result<(bool), Exception>; // is_capturing
[INFO] [stderr]     |                          ^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db69bbbc98ec84c4abdf29b1697bd3ab553583d361a3f998f037f06ec6a7cd9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db69bbbc98ec84c4abdf29b1697bd3ab553583d361a3f998f037f06ec6a7cd9e", kill_on_drop: false }`
[INFO] [stdout] db69bbbc98ec84c4abdf29b1697bd3ab553583d361a3f998f037f06ec6a7cd9e