[INFO] cloning repository https://github.com/nicolasgarza/pingcap-rust-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicolasgarza/pingcap-rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicolasgarza%2Fpingcap-rust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicolasgarza%2Fpingcap-rust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00b523bf249c54b6c596bff1899a17477dc48f31
[INFO] checking nicolasgarza/pingcap-rust-exercises against try#f3d95de532264a1215023baa665c0028aecf74b1 for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicolasgarza%2Fpingcap-rust-exercises" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nicolasgarza/pingcap-rust-exercises
[INFO] finished tweaking git repo https://github.com/nicolasgarza/pingcap-rust-exercises
[INFO] tweaked toml for git repo https://github.com/nicolasgarza/pingcap-rust-exercises written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nicolasgarza/pingcap-rust-exercises on toolchain f3d95de532264a1215023baa665c0028aecf74b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nicolasgarza/pingcap-rust-exercises 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" "+f3d95de532264a1215023baa665c0028aecf74b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_bytes v0.11.14
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.91
[INFO] [stderr]   Downloaded time v0.3.34
[INFO] [stderr]   Downloaded uuid v1.7.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.91
[INFO] [stderr]   Downloaded indexmap v2.2.2
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.91
[INFO] [stderr]   Downloaded js-sys v0.3.68
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.91
[INFO] [stderr]   Downloaded time-macros v0.2.17
[INFO] [stderr]   Downloaded serde v1.0.196
[INFO] [stderr]   Downloaded serde_json v1.0.113
[INFO] [stderr]   Downloaded bson v2.9.0
[INFO] [stderr]   Downloaded serde_derive v1.0.196
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 627bde95d7b5430fc3e520ff4fb2abe009b34835d0f6487d9912794ba5a945b7
[INFO] running `Command { std: "docker" "start" "-a" "627bde95d7b5430fc3e520ff4fb2abe009b34835d0f6487d9912794ba5a945b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "627bde95d7b5430fc3e520ff4fb2abe009b34835d0f6487d9912794ba5a945b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "627bde95d7b5430fc3e520ff4fb2abe009b34835d0f6487d9912794ba5a945b7", kill_on_drop: false }`
[INFO] [stdout] 627bde95d7b5430fc3e520ff4fb2abe009b34835d0f6487d9912794ba5a945b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42f05b134b959bccde8f6a77872db168796d1f778245bbbce457dcea24fcd9fa
[INFO] running `Command { std: "docker" "start" "-a" "42f05b134b959bccde8f6a77872db168796d1f778245bbbce457dcea24fcd9fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking indexmap v2.2.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/time-0.3.34/src/format_description/parse/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let items = format_items
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 |     Ok(items.into())
[INFO] [stdout]    |        ----- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `items` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let items: Box<_> = format_items
[INFO] [stdout]    |              ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `time` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "42f05b134b959bccde8f6a77872db168796d1f778245bbbce457dcea24fcd9fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f05b134b959bccde8f6a77872db168796d1f778245bbbce457dcea24fcd9fa", kill_on_drop: false }`
[INFO] [stdout] 42f05b134b959bccde8f6a77872db168796d1f778245bbbce457dcea24fcd9fa