[INFO] cloning repository https://github.com/Medsko/study-crate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Medsko/study-crate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMedsko%2Fstudy-crate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMedsko%2Fstudy-crate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18f3fbb58302fefd82db608993997a5ec1c43f02
[INFO] testing Medsko/study-crate against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMedsko%2Fstudy-crate" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Medsko/study-crate on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Medsko/study-crate
[INFO] finished tweaking git repo https://github.com/Medsko/study-crate
[INFO] tweaked toml for git repo https://github.com/Medsko/study-crate written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Medsko/study-crate already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab932d3149ce858950bfaf1df2c4b5022a560e1e4bec9fe56eba682f51e16258
[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" "ab932d3149ce858950bfaf1df2c4b5022a560e1e4bec9fe56eba682f51e16258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab932d3149ce858950bfaf1df2c4b5022a560e1e4bec9fe56eba682f51e16258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab932d3149ce858950bfaf1df2c4b5022a560e1e4bec9fe56eba682f51e16258", kill_on_drop: false }`
[INFO] [stdout] ab932d3149ce858950bfaf1df2c4b5022a560e1e4bec9fe56eba682f51e16258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89331a5cc1c6f7af7b34909a80e59cffb114e03dfcdf0d282ae753c310057183
[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" "89331a5cc1c6f7af7b34909a80e59cffb114e03dfcdf0d282ae753c310057183", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling study-crate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `collections::vectors`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use collections::vectors;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::strings`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use collections::strings;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hashmaps`
[INFO] [stdout]  --> src/main.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::collections::{hashmaps, exercises};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `do_vector_stuff`
[INFO] [stdout]  --> src/collections/vectors.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn do_vector_stuff() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_vector`
[INFO] [stdout]   --> src/collections/vectors.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn print_vector(vec: &Vec<i32>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `string_stuff`
[INFO] [stdout]  --> src/collections/strings.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn string_stuff() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `got_game`
[INFO] [stdout]   --> src/collections/strings.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn got_game() -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hash_it_up`
[INFO] [stdout]  --> src/collections/hashmaps.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn hash_it_up() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.41s
[INFO] running `Command { std: "docker" "inspect" "89331a5cc1c6f7af7b34909a80e59cffb114e03dfcdf0d282ae753c310057183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89331a5cc1c6f7af7b34909a80e59cffb114e03dfcdf0d282ae753c310057183", kill_on_drop: false }`
[INFO] [stdout] 89331a5cc1c6f7af7b34909a80e59cffb114e03dfcdf0d282ae753c310057183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8736431df2f79d72cd1ccb45162f5ed21a8a19bf31a0ab994e0baf8af4f21c9c
[INFO] running `Command { std: "docker" "start" "-a" "8736431df2f79d72cd1ccb45162f5ed21a8a19bf31a0ab994e0baf8af4f21c9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling study-crate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `collections::vectors`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use collections::vectors;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::strings`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use collections::strings;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hashmaps`
[INFO] [stdout]  --> src/main.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::collections::{hashmaps, exercises};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `do_vector_stuff`
[INFO] [stdout]  --> src/collections/vectors.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn do_vector_stuff() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_vector`
[INFO] [stdout]   --> src/collections/vectors.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn print_vector(vec: &Vec<i32>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `string_stuff`
[INFO] [stdout]  --> src/collections/strings.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn string_stuff() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `got_game`
[INFO] [stdout]   --> src/collections/strings.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn got_game() -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hash_it_up`
[INFO] [stdout]  --> src/collections/hashmaps.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn hash_it_up() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "8736431df2f79d72cd1ccb45162f5ed21a8a19bf31a0ab994e0baf8af4f21c9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8736431df2f79d72cd1ccb45162f5ed21a8a19bf31a0ab994e0baf8af4f21c9c", kill_on_drop: false }`
[INFO] [stdout] 8736431df2f79d72cd1ccb45162f5ed21a8a19bf31a0ab994e0baf8af4f21c9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b54758cfacbb15e997cd319fb84eea6188d692175cbe1fb6c1aca2d390fae1a1
[INFO] running `Command { std: "docker" "start" "-a" "b54758cfacbb15e997cd319fb84eea6188d692175cbe1fb6c1aca2d390fae1a1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `collections::vectors`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use collections::vectors;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `collections::strings`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use collections::strings;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hashmaps`
[INFO] [stderr]  --> src/main.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::collections::{hashmaps, exercises};
[INFO] [stderr]   |                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `do_vector_stuff`
[INFO] [stderr]  --> src/collections/vectors.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn do_vector_stuff() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_vector`
[INFO] [stderr]   --> src/collections/vectors.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn print_vector(vec: &Vec<i32>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string_stuff`
[INFO] [stderr]  --> src/collections/strings.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn string_stuff() {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `got_game`
[INFO] [stderr]   --> src/collections/strings.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn got_game() -> String {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hash_it_up`
[INFO] [stderr]  --> src/collections/hashmaps.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn hash_it_up() {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/study_crate-10aeed96a1638f5f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b54758cfacbb15e997cd319fb84eea6188d692175cbe1fb6c1aca2d390fae1a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54758cfacbb15e997cd319fb84eea6188d692175cbe1fb6c1aca2d390fae1a1", kill_on_drop: false }`
[INFO] [stdout] b54758cfacbb15e997cd319fb84eea6188d692175cbe1fb6c1aca2d390fae1a1