[INFO] cloning repository https://github.com/APSN4/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/APSN4/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAPSN4%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAPSN4%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79f984923df34e696cb58a3d0dab740632c2a853
[INFO] checking APSN4/learning-rust against try#0bdee9e879c87b7211d316e9152109cfd46c576b for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAPSN4%2Flearning-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/APSN4/learning-rust
[INFO] finished tweaking git repo https://github.com/APSN4/learning-rust
[INFO] tweaked toml for git repo https://github.com/APSN4/learning-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/APSN4/learning-rust on toolchain 0bdee9e879c87b7211d316e9152109cfd46c576b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/APSN4/learning-rust 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" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9674b3a1041ef1a7bcbd65e75414c87e0768c0ba5f28af68f0909ba46734aa9
[INFO] running `Command { std: "docker" "start" "-a" "f9674b3a1041ef1a7bcbd65e75414c87e0768c0ba5f28af68f0909ba46734aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9674b3a1041ef1a7bcbd65e75414c87e0768c0ba5f28af68f0909ba46734aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9674b3a1041ef1a7bcbd65e75414c87e0768c0ba5f28af68f0909ba46734aa9", kill_on_drop: false }`
[INFO] [stdout] f9674b3a1041ef1a7bcbd65e75414c87e0768c0ba5f28af68f0909ba46734aa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15b6ed59b2f0c56915881e6b559c80b2cefc29ad30282734f02c2bcc1de94c3f
[INFO] running `Command { std: "docker" "start" "-a" "15b6ed59b2f0c56915881e6b559c80b2cefc29ad30282734f02c2bcc1de94c3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.96
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common)
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling escargot v0.5.14
[INFO] [stderr]     Checking task_packages v0.1.0 (/opt/rustwide/workdir/TicketV2/Packages/Task)
[INFO] [stderr]     Checking task_error_trait v0.1.0 (/opt/rustwide/workdir/TicketV2/ErrorTrait/Task)
[INFO] [stderr]     Checking task_branching v0.1.0 (/opt/rustwide/workdir/ABasicCalculator/BranchingIfElse/Task)
[INFO] [stderr]     Checking task_heap v0.1.0 (/opt/rustwide/workdir/TicketV1/Heap/Task)
[INFO] [stderr]     Checking task_nullability v0.1.0 (/opt/rustwide/workdir/TicketV2/Nullability/Task)
[INFO] [stderr]     Checking task_encapsulation v0.1.0 (/opt/rustwide/workdir/TicketV1/Encapsulation/Task)
[INFO] [stdout] error: this file contains an unclosed delimiter
[INFO] [stdout]   --> TicketV1/Encapsulation/Task/src/lib.rs:38:68
[INFO] [stdout]    |
[INFO] [stdout]  1 | pub mod ticket {
[INFO] [stdout]    |                - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout]  8 |     impl Ticket {
[INFO] [stdout]    |                 - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 38 |         pub fn t/* TODO */  pub fn d/* TODO */  pub fn s/* TODO */
[INFO] [stdout]    |                                                                   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]   --> TicketV2/ErrorTrait/Task/src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub enum TicketNewError {
[INFO] [stdout]    |                         - this opening brace...
[INFO] [stdout] ...
[INFO] [stdout] 10 | }
[INFO] [stdout]    | - ...matches this closing brace
[INFO] [stdout] 11 | /* TODO */
[INFO] [stdout] 12 | }/* TODO */{}
[INFO] [stdout]    | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task_encapsulation` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `task_error_trait` (lib) due to 1 previous error
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> TicketV2/Nullability/Task/src/lib.rs:38:34
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn assigned_to(&self) -> Option<&String> {
[INFO] [stdout]    |            -----------           ^^^^^^^^^^^^^^^ expected `Option<&String>`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Option<&String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task_nullability` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "15b6ed59b2f0c56915881e6b559c80b2cefc29ad30282734f02c2bcc1de94c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15b6ed59b2f0c56915881e6b559c80b2cefc29ad30282734f02c2bcc1de94c3f", kill_on_drop: false }`
[INFO] [stdout] 15b6ed59b2f0c56915881e6b559c80b2cefc29ad30282734f02c2bcc1de94c3f
