[INFO] crate aoc-runner-internal 0.1.0 is already in cache
[INFO] checking aoc-runner-internal-0.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate aoc-runner-internal 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate aoc-runner-internal 0.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate aoc-runner-internal 0.1.0
[INFO] finished tweaking crates.io crate aoc-runner-internal 0.1.0
[INFO] tweaked toml for crates.io crate aoc-runner-internal 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a620aecf70b593fa27a6eda16f5ba8cc166104e8eb9cb7bfa37155a7fe084dc9
[INFO] running `"docker" "start" "-a" "a620aecf70b593fa27a6eda16f5ba8cc166104e8eb9cb7bfa37155a7fe084dc9"`
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking aoc-runner-internal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:94:42
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn save(&self) -> Result<(), Box<error::Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:103:39
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn load() -> Result<Self, Box<error::Error>> {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:94:42
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn save(&self) -> Result<(), Box<error::Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:103:39
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn load() -> Result<Self, Box<error::Error>> {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `"docker" "inspect" "a620aecf70b593fa27a6eda16f5ba8cc166104e8eb9cb7bfa37155a7fe084dc9"`
[INFO] running `"docker" "rm" "-f" "a620aecf70b593fa27a6eda16f5ba8cc166104e8eb9cb7bfa37155a7fe084dc9"`
[INFO] [stdout] a620aecf70b593fa27a6eda16f5ba8cc166104e8eb9cb7bfa37155a7fe084dc9