[INFO] cloning repository https://github.com/Fcornaire/advent-of-code-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fcornaire/advent-of-code-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFcornaire%2Fadvent-of-code-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFcornaire%2Fadvent-of-code-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ae8c13371db1d393377a441aa516840acf98c21
[INFO] checking Fcornaire/advent-of-code-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFcornaire%2Fadvent-of-code-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fcornaire/advent-of-code-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Fcornaire/advent-of-code-rs
[INFO] finished tweaking git repo https://github.com/Fcornaire/advent-of-code-rs
[INFO] tweaked toml for git repo https://github.com/Fcornaire/advent-of-code-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Fcornaire/advent-of-code-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13d8b77ff6c7cf2787beb5d44f7f931450f2e45cc851e30543a23924eaae1934
[INFO] running `Command { std: "docker" "start" "-a" "13d8b77ff6c7cf2787beb5d44f7f931450f2e45cc851e30543a23924eaae1934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13d8b77ff6c7cf2787beb5d44f7f931450f2e45cc851e30543a23924eaae1934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d8b77ff6c7cf2787beb5d44f7f931450f2e45cc851e30543a23924eaae1934", kill_on_drop: false }`
[INFO] [stdout] 13d8b77ff6c7cf2787beb5d44f7f931450f2e45cc851e30543a23924eaae1934
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fed34c3e5bacc1fb9472a9778d72aa94f76dfb32201c99b4101a18347634d316
[INFO] running `Command { std: "docker" "start" "-a" "fed34c3e5bacc1fb9472a9778d72aa94f76dfb32201c99b4101a18347634d316", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking indicatif v0.17.7
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking advent_of_code v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `fst` is never read
[INFO] [stdout]   --> src/bin/01.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut fst: u32 = 0;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ind` is assigned to, but never used
[INFO] [stdout]   --> src/bin/01.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let mut ind = 1;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_ind` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fst` is never read
[INFO] [stdout]   --> src/bin/01.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut fst: u32 = 0;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ind` is assigned to, but never used
[INFO] [stdout]   --> src/bin/01.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let mut ind = 1;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_ind` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.65s
[INFO] running `Command { std: "docker" "inspect" "fed34c3e5bacc1fb9472a9778d72aa94f76dfb32201c99b4101a18347634d316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fed34c3e5bacc1fb9472a9778d72aa94f76dfb32201c99b4101a18347634d316", kill_on_drop: false }`
[INFO] [stdout] fed34c3e5bacc1fb9472a9778d72aa94f76dfb32201c99b4101a18347634d316
[INFO] checking Fcornaire/advent-of-code-rs against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFcornaire%2Fadvent-of-code-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fcornaire/advent-of-code-rs on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Fcornaire/advent-of-code-rs
[INFO] finished tweaking git repo https://github.com/Fcornaire/advent-of-code-rs
[INFO] tweaked toml for git repo https://github.com/Fcornaire/advent-of-code-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Fcornaire/advent-of-code-rs 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcc97a83acf75e03687f8ef638fb36bc177a8331c2e1d942d134149355a996c5
[INFO] running `Command { std: "docker" "start" "-a" "bcc97a83acf75e03687f8ef638fb36bc177a8331c2e1d942d134149355a996c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcc97a83acf75e03687f8ef638fb36bc177a8331c2e1d942d134149355a996c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcc97a83acf75e03687f8ef638fb36bc177a8331c2e1d942d134149355a996c5", kill_on_drop: false }`
[INFO] [stdout] bcc97a83acf75e03687f8ef638fb36bc177a8331c2e1d942d134149355a996c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9a69df6467b9e99d5511bcbd28cfd57c03ecdb3a5e7c12e4558690eaeca50ad
[INFO] running `Command { std: "docker" "start" "-a" "b9a69df6467b9e99d5511bcbd28cfd57c03ecdb3a5e7c12e4558690eaeca50ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking indicatif v0.17.7
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking advent_of_code v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `fst` is never read
[INFO] [stdout]   --> src/bin/01.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut fst: u32 = 0;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ind` is assigned to, but never used
[INFO] [stdout]   --> src/bin/01.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let mut ind = 1;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_ind` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fst` is never read
[INFO] [stdout]   --> src/bin/01.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut fst: u32 = 0;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ind` is assigned to, but never used
[INFO] [stdout]   --> src/bin/01.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let mut ind = 1;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_ind` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "b9a69df6467b9e99d5511bcbd28cfd57c03ecdb3a5e7c12e4558690eaeca50ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a69df6467b9e99d5511bcbd28cfd57c03ecdb3a5e7c12e4558690eaeca50ad", kill_on_drop: false }`
[INFO] [stdout] b9a69df6467b9e99d5511bcbd28cfd57c03ecdb3a5e7c12e4558690eaeca50ad