[INFO] cloning repository https://github.com/jupp0r/preschool-planner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jupp0r/preschool-planner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjupp0r%2Fpreschool-planner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjupp0r%2Fpreschool-planner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ceb1d1f67cd00de1c1b1bc39a3805f7e95e6a4bc
[INFO] checking jupp0r/preschool-planner against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjupp0r%2Fpreschool-planner" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jupp0r/preschool-planner on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jupp0r/preschool-planner
[INFO] finished tweaking git repo https://github.com/jupp0r/preschool-planner
[INFO] tweaked toml for git repo https://github.com/jupp0r/preschool-planner written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jupp0r/preschool-planner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fca834d3ca72d8d73260b67056da6e2a0d8d7abf42c979cc507cf9c8d415d909
[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" "fca834d3ca72d8d73260b67056da6e2a0d8d7abf42c979cc507cf9c8d415d909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fca834d3ca72d8d73260b67056da6e2a0d8d7abf42c979cc507cf9c8d415d909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca834d3ca72d8d73260b67056da6e2a0d8d7abf42c979cc507cf9c8d415d909", kill_on_drop: false }`
[INFO] [stdout] fca834d3ca72d8d73260b67056da6e2a0d8d7abf42c979cc507cf9c8d415d909
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad7905a10ce5be3cfcb97998865f4050f6bd1cdeea29b8fc1feef95c22a2e6b3
[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" "ad7905a10ce5be3cfcb97998865f4050f6bd1cdeea29b8fc1feef95c22a2e6b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.11
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking preschool-planner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]   --> src/input.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     use csv;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | extern crate csv;
[INFO] [stdout]    | ----------------- the item `csv` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]   --> src/input.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     use csv;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | extern crate csv;
[INFO] [stdout]    | ----------------- the item `csv` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/fitness.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn compute_fitness(input: &Input, schedule: &Schedule) -> f64 {
[INFO] [stdout]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/fitness.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn compute_fitness(input: &Input, schedule: &Schedule) -> f64 {
[INFO] [stdout]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ANTIPREFERENCE_COST`
[INFO] [stdout]  --> src/fitness.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const ANTIPREFERENCE_COST: f64 = 1000f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NOT_FIRST_PREFERENCE_COST`
[INFO] [stdout]  --> src/fitness.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const NOT_FIRST_PREFERENCE_COST: f64 = 10f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NOT_SECOND_PREFERENCE_COST`
[INFO] [stdout]  --> src/fitness.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const NOT_SECOND_PREFERENCE_COST: f64 = 5f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_fitness`
[INFO] [stdout]  --> src/fitness.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn compute_fitness(input: &Input, schedule: &Schedule) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Schedule`
[INFO] [stdout]    --> src/model.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct Schedule {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DaySchedule`
[INFO] [stdout]    --> src/model.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct DaySchedule {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ANTIPREFERENCE_COST`
[INFO] [stdout]  --> src/fitness.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const ANTIPREFERENCE_COST: f64 = 1000f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NOT_FIRST_PREFERENCE_COST`
[INFO] [stdout]  --> src/fitness.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const NOT_FIRST_PREFERENCE_COST: f64 = 10f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NOT_SECOND_PREFERENCE_COST`
[INFO] [stdout]  --> src/fitness.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const NOT_SECOND_PREFERENCE_COST: f64 = 5f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_fitness`
[INFO] [stdout]  --> src/fitness.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn compute_fitness(input: &Input, schedule: &Schedule) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_from_file`
[INFO] [stdout]   --> src/input.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn load_from_file(path: &str) -> Result<Vec<Record>, Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Schedule`
[INFO] [stdout]    --> src/model.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct Schedule {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DaySchedule`
[INFO] [stdout]    --> src/model.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct DaySchedule {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.28s
[INFO] running `Command { std: "docker" "inspect" "ad7905a10ce5be3cfcb97998865f4050f6bd1cdeea29b8fc1feef95c22a2e6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad7905a10ce5be3cfcb97998865f4050f6bd1cdeea29b8fc1feef95c22a2e6b3", kill_on_drop: false }`
[INFO] [stdout] ad7905a10ce5be3cfcb97998865f4050f6bd1cdeea29b8fc1feef95c22a2e6b3