[INFO] cloning repository https://github.com/Szetty/advent_of_code_2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Szetty/advent_of_code_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzetty%2Fadvent_of_code_2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzetty%2Fadvent_of_code_2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1394b07e3a65a317b6b43e52ccd3d509789e2af6 [INFO] checking Szetty/advent_of_code_2020 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzetty%2Fadvent_of_code_2020" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Szetty/advent_of_code_2020 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Szetty/advent_of_code_2020 [INFO] finished tweaking git repo https://github.com/Szetty/advent_of_code_2020 [INFO] tweaked toml for git repo https://github.com/Szetty/advent_of_code_2020 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/Szetty/advent_of_code_2020 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1a72d7719f8d601b321028a7d44d5f6033c3e2e6022eb564a3862ebf2369d6ee [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1a72d7719f8d601b321028a7d44d5f6033c3e2e6022eb564a3862ebf2369d6ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1a72d7719f8d601b321028a7d44d5f6033c3e2e6022eb564a3862ebf2369d6ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a72d7719f8d601b321028a7d44d5f6033c3e2e6022eb564a3862ebf2369d6ee", kill_on_drop: false }` [INFO] [stdout] 1a72d7719f8d601b321028a7d44d5f6033c3e2e6022eb564a3862ebf2369d6ee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 56c8302eb948ae0f9add00e5d9f339e7b09b82ba802af2b6ff2e2f5296e5df5f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "56c8302eb948ae0f9add00e5d9f339e7b09b82ba802af2b6ff2e2f5296e5df5f", 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] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking numtoa v0.2.3 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-bigint v0.3.1 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking modinverse v0.1.1 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking nalgebra v0.10.1 [INFO] [stderr] Checking modpow v1.0.1 [INFO] [stderr] Checking num v0.3.1 [INFO] [stderr] Compiling phf_macros v0.7.24 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Checking advent_of_code_2020 v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/day14.rs:143:10 [INFO] [stdout] | [INFO] [stdout] 143 | .intersperse("") [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method 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 [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] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/day14.rs:143:10 [INFO] [stdout] | [INFO] [stdout] 143 | .intersperse("") [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method 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 [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] [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 44.78s [INFO] running `Command { std: "docker" "inspect" "56c8302eb948ae0f9add00e5d9f339e7b09b82ba802af2b6ff2e2f5296e5df5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56c8302eb948ae0f9add00e5d9f339e7b09b82ba802af2b6ff2e2f5296e5df5f", kill_on_drop: false }` [INFO] [stdout] 56c8302eb948ae0f9add00e5d9f339e7b09b82ba802af2b6ff2e2f5296e5df5f