[INFO] cloning repository https://github.com/woodgear/judgement
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/woodgear/judgement" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodgear%2Fjudgement", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodgear%2Fjudgement'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a902cdaf458f2902793ff246b964c9bc390d4ddb
[INFO] checking woodgear/judgement against master#bd71213cf0a765705e7d72a099151bd4eb465ccb for pr-123864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodgear%2Fjudgement" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/woodgear/judgement on toolchain bd71213cf0a765705e7d72a099151bd4eb465ccb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/woodgear/judgement
[INFO] finished tweaking git repo https://github.com/woodgear/judgement
[INFO] tweaked toml for git repo https://github.com/woodgear/judgement written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/woodgear/judgement 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" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.13.10
[INFO] [stderr]   Downloaded derive-new v0.5.4
[INFO] [stderr]   Downloaded subprocess v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e0d44ac08d36c3693264409acc0ef640a324c5c9f242bd2c212f6d4dbf399a4
[INFO] running `Command { std: "docker" "start" "-a" "2e0d44ac08d36c3693264409acc0ef640a324c5c9f242bd2c212f6d4dbf399a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e0d44ac08d36c3693264409acc0ef640a324c5c9f242bd2c212f6d4dbf399a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0d44ac08d36c3693264409acc0ef640a324c5c9f242bd2c212f6d4dbf399a4", kill_on_drop: false }`
[INFO] [stdout] 2e0d44ac08d36c3693264409acc0ef640a324c5c9f242bd2c212f6d4dbf399a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 705ad952c5060e54214675f8b76ed1e7ebca98e4f7ae6b32b1bb53265528da50
[INFO] running `Command { std: "docker" "start" "-a" "705ad952c5060e54214675f8b76ed1e7ebca98e4f7ae6b32b1bb53265528da50", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking colored v1.6.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking subprocess v0.1.12
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling derive-new v0.5.4
[INFO] [stderr]     Checking backtrace v0.3.7
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking judgement v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/judegment.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |     examiner: Option<Box<Score>>,
[INFO] [stdout]    |                          ^^^^^
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     examiner: Option<Box<dyn Score>>,
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/judegment.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     examinee: Option<Box<Examination>>,
[INFO] [stdout]    |                          ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     examinee: Option<Box<dyn Examination>>,
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |     examiner: Box<Score>,
[INFO] [stdout]     |                   ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 217 |     examiner: Box<dyn Score>,
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:218:16
[INFO] [stdout]     |
[INFO] [stdout] 218 |     examinee: Box<Examination>,
[INFO] [stdout]     |                   ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 218 |     examinee: Box<dyn Examination>,
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/judegment.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |     examiner: Option<Box<Score>>,
[INFO] [stdout]    |                          ^^^^^
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     examiner: Option<Box<dyn Score>>,
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/judegment.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     examinee: Option<Box<Examination>>,
[INFO] [stdout]    |                          ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     examinee: Option<Box<dyn Examination>>,
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |     examiner: Box<Score>,
[INFO] [stdout]     |                   ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 217 |     examiner: Box<dyn Score>,
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:218:16
[INFO] [stdout]     |
[INFO] [stdout] 218 |     examinee: Box<Examination>,
[INFO] [stdout]     |                   ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 218 |     examinee: Box<dyn Examination>,
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:233:26
[INFO] [stdout]     |
[INFO] [stdout] 233 |     fn score(&self, e: &Box<Examination>) -> Result<(), String>;
[INFO] [stdout]     |                             ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 233 |     fn score(&self, e: &Box<dyn Examination>) -> Result<(), String>;
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:233:26
[INFO] [stdout]     |
[INFO] [stdout] 233 |     fn score(&self, e: &Box<Examination>) -> Result<(), String>;
[INFO] [stdout]     |                             ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 233 |     fn score(&self, e: &Box<dyn Examination>) -> Result<(), String>;
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:267:26
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn score(&self, e: &Box<Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn score(&self, e: &Box<dyn Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:278:26
[INFO] [stdout]     |
[INFO] [stdout] 278 |     fn score(&self, e: &Box<Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 278 |     fn score(&self, e: &Box<dyn Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:168:71
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn find_examiner(&self, path: &PathBuf, name: &String) -> Option<Box<Score>> {
[INFO] [stdout]     |                                                                          ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn find_examiner(&self, path: &PathBuf, name: &String) -> Option<Box<dyn Score>> {
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:267:26
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn score(&self, e: &Box<Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn score(&self, e: &Box<dyn Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:278:26
[INFO] [stdout]     |
[INFO] [stdout] 278 |     fn score(&self, e: &Box<Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 278 |     fn score(&self, e: &Box<dyn Examination>) -> Result<(), String> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:192:71
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn find_examinee(&self, path: &PathBuf, name: &String) -> Option<Box<Examination>> {
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn find_examinee(&self, path: &PathBuf, name: &String) -> Option<Box<dyn Examination>> {
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:168:71
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn find_examiner(&self, path: &PathBuf, name: &String) -> Option<Box<Score>> {
[INFO] [stdout]     |                                                                          ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn find_examiner(&self, path: &PathBuf, name: &String) -> Option<Box<dyn Score>> {
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:192:71
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn find_examinee(&self, path: &PathBuf, name: &String) -> Option<Box<Examination>> {
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn find_examinee(&self, path: &PathBuf, name: &String) -> Option<Box<dyn Examination>> {
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:178:30
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut examiners: Vec<Box<Score>> = paths
[INFO] [stdout]     |                                    ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut examiners: Vec<Box<dyn Score>> = paths
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:182:67
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     Some(Some("oa")) => Some(Box::new(OAExaminer::new(p)) as Box<Score>),
[INFO] [stdout]     |                                                                                  ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     Some(Some("oa")) => Some(Box::new(OAExaminer::new(p)) as Box<dyn Score>),
[INFO] [stdout]     |                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:183:67
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     Some(Some("qa")) => Some(Box::new(QAExaminer::new(p)) as Box<Score>),
[INFO] [stdout]     |                                                                                  ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     Some(Some("qa")) => Some(Box::new(QAExaminer::new(p)) as Box<dyn Score>),
[INFO] [stdout]     |                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:201:30
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let mut examinees: Vec<Box<Examination>> = paths
[INFO] [stdout]     |                                    ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let mut examinees: Vec<Box<dyn Examination>> = paths
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:178:30
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut examiners: Vec<Box<Score>> = paths
[INFO] [stdout]     |                                    ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut examiners: Vec<Box<dyn Score>> = paths
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:205:64
[INFO] [stdout]     |
[INFO] [stdout] 205 |                     Some("sh") => Some(Box::new(ShellExaminee::new(p)) as Box<Examination>),
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 205 |                     Some("sh") => Some(Box::new(ShellExaminee::new(p)) as Box<dyn Examination>),
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:182:67
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     Some(Some("oa")) => Some(Box::new(OAExaminer::new(p)) as Box<Score>),
[INFO] [stdout]     |                                                                                  ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     Some(Some("oa")) => Some(Box::new(OAExaminer::new(p)) as Box<dyn Score>),
[INFO] [stdout]     |                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:183:67
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     Some(Some("qa")) => Some(Box::new(QAExaminer::new(p)) as Box<Score>),
[INFO] [stdout]     |                                                                                  ^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     Some(Some("qa")) => Some(Box::new(QAExaminer::new(p)) as Box<dyn Score>),
[INFO] [stdout]     |                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:201:30
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let mut examinees: Vec<Box<Examination>> = paths
[INFO] [stdout]     |                                    ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let mut examinees: Vec<Box<dyn Examination>> = paths
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/judegment.rs:205:64
[INFO] [stdout]     |
[INFO] [stdout] 205 |                     Some("sh") => Some(Box::new(ShellExaminee::new(p)) as Box<Examination>),
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^
[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] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 205 |                     Some("sh") => Some(Box::new(ShellExaminee::new(p)) as Box<dyn Examination>),
[INFO] [stdout]     |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.15s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.10
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "705ad952c5060e54214675f8b76ed1e7ebca98e4f7ae6b32b1bb53265528da50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "705ad952c5060e54214675f8b76ed1e7ebca98e4f7ae6b32b1bb53265528da50", kill_on_drop: false }`
[INFO] [stdout] 705ad952c5060e54214675f8b76ed1e7ebca98e4f7ae6b32b1bb53265528da50