[INFO] cloning repository https://github.com/duncanfinney/advent-of-rust-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duncanfinney/advent-of-rust-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduncanfinney%2Fadvent-of-rust-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduncanfinney%2Fadvent-of-rust-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e58a2aae16f0391fc521a3bf9b0fdcf3901c2f7
[INFO] checking duncanfinney/advent-of-rust-2018 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduncanfinney%2Fadvent-of-rust-2018" "/workspace/builds/worker-41/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-41/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:   4% (2/44)
Updating files:   6% (3/44)
Updating files:   9% (4/44)
Updating files:  11% (5/44)
Updating files:  13% (6/44)
Updating files:  15% (7/44)
Updating files:  18% (8/44)
Updating files:  20% (9/44)
Updating files:  22% (10/44)
Updating files:  25% (11/44)
Updating files:  27% (12/44)
Updating files:  29% (13/44)
Updating files:  31% (14/44)
Updating files:  34% (15/44)
Updating files:  36% (16/44)
Updating files:  38% (17/44)
Updating files:  40% (18/44)
Updating files:  43% (19/44)
Updating files:  45% (20/44)
Updating files:  47% (21/44)
Updating files:  50% (22/44)
Updating files:  52% (23/44)
Updating files:  54% (24/44)
Updating files:  56% (25/44)
Updating files:  59% (26/44)
Updating files:  61% (27/44)
Updating files:  63% (28/44)
Updating files:  65% (29/44)
Updating files:  68% (30/44)
Updating files:  70% (31/44)
Updating files:  72% (32/44)
Updating files:  75% (33/44)
Updating files:  77% (34/44)
Updating files:  79% (35/44)
Updating files:  81% (36/44)
Updating files:  84% (37/44)
Updating files:  86% (38/44)
Updating files:  88% (39/44)
Updating files:  90% (40/44)
Updating files:  93% (41/44)
Updating files:  95% (42/44)
Updating files:  97% (43/44)
Updating files: 100% (44/44)
Updating files: 100% (44/44), done.
[INFO] validating manifest of git repo https://github.com/duncanfinney/advent-of-rust-2018 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/duncanfinney/advent-of-rust-2018
[INFO] finished tweaking git repo https://github.com/duncanfinney/advent-of-rust-2018
[INFO] tweaked toml for git repo https://github.com/duncanfinney/advent-of-rust-2018 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] crate git repo https://github.com/duncanfinney/advent-of-rust-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc5c39e08c3a8834534d9f1865582717d97a568b19b07d12beba99a82ba34277
[INFO] running `Command { std: "docker" "start" "-a" "cc5c39e08c3a8834534d9f1865582717d97a568b19b07d12beba99a82ba34277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc5c39e08c3a8834534d9f1865582717d97a568b19b07d12beba99a82ba34277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc5c39e08c3a8834534d9f1865582717d97a568b19b07d12beba99a82ba34277", kill_on_drop: false }`
[INFO] [stdout] cc5c39e08c3a8834534d9f1865582717d97a568b19b07d12beba99a82ba34277
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2aebf9c8c9a3bb5704a8417ccdb2b7005a3643decabeca29787b14105749982
[INFO] running `Command { std: "docker" "start" "-a" "b2aebf9c8c9a3bb5704a8417ccdb2b7005a3643decabeca29787b14105749982", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking id_tree v1.3.0
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking once_cell v0.1.6
[INFO] [stderr]     Checking cached v0.8.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking advent-of-rust-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/day14.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/day14.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `search_idx` is assigned to, but never used
[INFO] [stdout]   --> src/day14.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut search_idx: usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_search_idx` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `search_idx` is assigned to, but never used
[INFO] [stdout]   --> src/day14.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut search_idx: usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_search_idx` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `debug_print`
[INFO] [stdout]   --> src/day14.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn debug_print(seq: &Vec<char>, left: usize, right: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns, duration_as_u128, type_ascription)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `duration_as_u128` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns, duration_as_u128, type_ascription)]
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `debug_print`
[INFO] [stdout]   --> src/day14.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn debug_print(seq: &Vec<char>, left: usize, right: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns, duration_as_u128, type_ascription)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `duration_as_u128` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns, duration_as_u128, type_ascription)]
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.43s
[INFO] running `Command { std: "docker" "inspect" "b2aebf9c8c9a3bb5704a8417ccdb2b7005a3643decabeca29787b14105749982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2aebf9c8c9a3bb5704a8417ccdb2b7005a3643decabeca29787b14105749982", kill_on_drop: false }`
[INFO] [stdout] b2aebf9c8c9a3bb5704a8417ccdb2b7005a3643decabeca29787b14105749982