[INFO] cloning repository https://github.com/stijnh/rust-advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stijnh/rust-advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstijnh%2Frust-advent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstijnh%2Frust-advent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8795c662b60ca01f5d615ea87d950260c42a800
[INFO] checking stijnh/rust-advent-of-code-2019/b8795c662b60ca01f5d615ea87d950260c42a800 against master#1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492 for pr-118553-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstijnh%2Frust-advent-of-code-2019" "/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/stijnh/rust-advent-of-code-2019 on toolchain 1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stijnh/rust-advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/stijnh/rust-advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/stijnh/rust-advent-of-code-2019 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/stijnh/rust-advent-of-code-2019 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" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compare v0.1.0
[INFO] [stderr]   Downloaded defaultmap v0.5.0
[INFO] [stderr]   Downloaded binary-heap-plus v0.2.0
[INFO] [stderr]   Downloaded anyhow v1.0.25
[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" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f072800e74eb7b557e8dc1a6e36191bd4f4991cb62171eccd2e1da3d5d63ccd0
[INFO] running `Command { std: "docker" "start" "-a" "f072800e74eb7b557e8dc1a6e36191bd4f4991cb62171eccd2e1da3d5d63ccd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f072800e74eb7b557e8dc1a6e36191bd4f4991cb62171eccd2e1da3d5d63ccd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f072800e74eb7b557e8dc1a6e36191bd4f4991cb62171eccd2e1da3d5d63ccd0", kill_on_drop: false }`
[INFO] [stdout] f072800e74eb7b557e8dc1a6e36191bd4f4991cb62171eccd2e1da3d5d63ccd0
[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" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6f98fa9a7c5aa724b9c810af35ca5871572fea488e13ce1a4a865c56d9859a4
[INFO] running `Command { std: "docker" "start" "-a" "a6f98fa9a7c5aa724b9c810af35ca5871572fea488e13ce1a4a865c56d9859a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling anyhow v1.0.25
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking compare v0.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking defaultmap v0.5.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking binary-heap-plus v0.2.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking advent2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/day17.rs:240:10
[INFO] [stdout]     |
[INFO] [stdout] 240 |         .intersperse(',');
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/day17.rs:240:10
[INFO] [stdout]     |
[INFO] [stdout] 240 |         .intersperse(',');
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `Command { std: "docker" "inspect" "a6f98fa9a7c5aa724b9c810af35ca5871572fea488e13ce1a4a865c56d9859a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f98fa9a7c5aa724b9c810af35ca5871572fea488e13ce1a4a865c56d9859a4", kill_on_drop: false }`
[INFO] [stdout] a6f98fa9a7c5aa724b9c810af35ca5871572fea488e13ce1a4a865c56d9859a4