[INFO] cloning repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alxolr/dates_imputation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falxolr%2Fdates_imputation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falxolr%2Fdates_imputation'...
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/alxolr/dates_imputation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 415f82483febf9bd1627e2b4f191589dec0d9f5d
[INFO] checking alxolr/dates_imputation against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falxolr%2Fdates_imputation" "/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/alxolr/dates_imputation on toolchain 7308c22c6a8d77e82187e290e1f7459870e48d12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alxolr/dates_imputation
[INFO] finished tweaking git repo https://github.com/alxolr/dates_imputation
[INFO] tweaked toml for git repo https://github.com/alxolr/dates_imputation written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/alxolr/dates_imputation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vinyana v0.2.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3adcd793073b1b1f351c263f43ea1edb56b57e07d3b1934ca40b497818eb068
[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" "d3adcd793073b1b1f351c263f43ea1edb56b57e07d3b1934ca40b497818eb068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3adcd793073b1b1f351c263f43ea1edb56b57e07d3b1934ca40b497818eb068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3adcd793073b1b1f351c263f43ea1edb56b57e07d3b1934ca40b497818eb068", kill_on_drop: false }`
[INFO] [stdout] d3adcd793073b1b1f351c263f43ea1edb56b57e07d3b1934ca40b497818eb068
[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" "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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29fb6297856649260cea8ff3022bf7bc98c0325a6345058f2f9f4dd9cc1cb854
[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" "29fb6297856649260cea8ff3022bf7bc98c0325a6345058f2f9f4dd9cc1cb854", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking ndarray v0.15.3
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking vinyana v0.2.0
[INFO] [stderr]     Checking impute_date v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `train_month` is never used
[INFO] [stdout]  --> src/trainer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn train_month() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_day` is never used
[INFO] [stdout]   --> src/trainer.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn train_day() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_at` is never used
[INFO] [stdout]   --> src/trainer.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn day_at(index: usize) -> Vec<f32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_dataset` is never used
[INFO] [stdout]    --> src/trainer.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn gen_dataset() -> Vec<(Vec<u32>, Vec<f32>)> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_leap_year` is never used
[INFO] [stdout]  --> src/utils.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn is_leap_year(year: u32) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_month` is never used
[INFO] [stdout]  --> src/trainer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn train_month() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_day` is never used
[INFO] [stdout]   --> src/trainer.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn train_day() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `day_at` is never used
[INFO] [stdout]   --> src/trainer.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn day_at(index: usize) -> Vec<f32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_dataset` is never used
[INFO] [stdout]    --> src/trainer.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn gen_dataset() -> Vec<(Vec<u32>, Vec<f32>)> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.94s
[INFO] running `Command { std: "docker" "inspect" "29fb6297856649260cea8ff3022bf7bc98c0325a6345058f2f9f4dd9cc1cb854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fb6297856649260cea8ff3022bf7bc98c0325a6345058f2f9f4dd9cc1cb854", kill_on_drop: false }`
[INFO] [stdout] 29fb6297856649260cea8ff3022bf7bc98c0325a6345058f2f9f4dd9cc1cb854