[INFO] cloning repository https://github.com/roncoejr/rustlearning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roncoejr/rustlearning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froncoejr%2Frustlearning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froncoejr%2Frustlearning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b47a88ad933fd72ea9503efd7a4a39c43c9be36
[INFO] testing roncoejr/rustlearning against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froncoejr%2Frustlearning" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roncoejr/rustlearning on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/roncoejr/rustlearning
[INFO] finished tweaking git repo https://github.com/roncoejr/rustlearning
[INFO] tweaked toml for git repo https://github.com/roncoejr/rustlearning written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/roncoejr/rustlearning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ce56eeaf24ad702b3b93af53d1bae22eacaf03b3b4a0f1acb70055121555ece
[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" "2ce56eeaf24ad702b3b93af53d1bae22eacaf03b3b4a0f1acb70055121555ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ce56eeaf24ad702b3b93af53d1bae22eacaf03b3b4a0f1acb70055121555ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce56eeaf24ad702b3b93af53d1bae22eacaf03b3b4a0f1acb70055121555ece", kill_on_drop: false }`
[INFO] [stdout] 2ce56eeaf24ad702b3b93af53d1bae22eacaf03b3b4a0f1acb70055121555ece
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82bf19deeb783cc7ffb30e4549778f3a28cb7c1938cd916c7d0241bb2c4c37d3
[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" "82bf19deeb783cc7ffb30e4549778f3a28cb7c1938cd916c7d0241bb2c4c37d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustlearn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/transfer.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |         let mut counter = 0;
[INFO] [stdout]   |             ----^^^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `withdrawtoken`
[INFO] [stdout]  --> src/withdraw.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn withdrawtoken() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deposittoken`
[INFO] [stdout]  --> src/deposit.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn deposittoken() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `depositvault`
[INFO] [stdout]  --> src/vault.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn depositvault() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `transfertoken`
[INFO] [stdout]  --> src/transfer.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn transfertoken() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82bf19deeb783cc7ffb30e4549778f3a28cb7c1938cd916c7d0241bb2c4c37d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82bf19deeb783cc7ffb30e4549778f3a28cb7c1938cd916c7d0241bb2c4c37d3", kill_on_drop: false }`
[INFO] [stdout] 82bf19deeb783cc7ffb30e4549778f3a28cb7c1938cd916c7d0241bb2c4c37d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dabf8cabca7a756ef045ea1aeeac88c469a13470aac59138de728bb351363ce8
[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" "dabf8cabca7a756ef045ea1aeeac88c469a13470aac59138de728bb351363ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustlearn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/transfer.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |         let mut counter = 0;
[INFO] [stdout]   |             ----^^^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `withdrawtoken`
[INFO] [stdout]  --> src/withdraw.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn withdrawtoken() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deposittoken`
[INFO] [stdout]  --> src/deposit.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn deposittoken() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `depositvault`
[INFO] [stdout]  --> src/vault.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn depositvault() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `transfertoken`
[INFO] [stdout]  --> src/transfer.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn transfertoken() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "dabf8cabca7a756ef045ea1aeeac88c469a13470aac59138de728bb351363ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabf8cabca7a756ef045ea1aeeac88c469a13470aac59138de728bb351363ce8", kill_on_drop: false }`
[INFO] [stdout] dabf8cabca7a756ef045ea1aeeac88c469a13470aac59138de728bb351363ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 509632aa6341f07a69b9da989ddf074aadc9902c7d88c5fdf9973c64cc3a9e8b
[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" "509632aa6341f07a69b9da989ddf074aadc9902c7d88c5fdf9973c64cc3a9e8b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/transfer.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |         let mut counter = 0;
[INFO] [stderr]   |             ----^^^^^^^
[INFO] [stderr]   |             |
[INFO] [stderr]   |             help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `withdrawtoken`
[INFO] [stderr]  --> src/withdraw.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn withdrawtoken() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deposittoken`
[INFO] [stderr]  --> src/deposit.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn deposittoken() {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `depositvault`
[INFO] [stderr]  --> src/vault.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn depositvault() {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `transfertoken`
[INFO] [stderr]  --> src/transfer.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn transfertoken() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rustlearn` (bin "rustlearn" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustlearn-ef3b2e1b85969b76)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "509632aa6341f07a69b9da989ddf074aadc9902c7d88c5fdf9973c64cc3a9e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509632aa6341f07a69b9da989ddf074aadc9902c7d88c5fdf9973c64cc3a9e8b", kill_on_drop: false }`
[INFO] [stdout] 509632aa6341f07a69b9da989ddf074aadc9902c7d88c5fdf9973c64cc3a9e8b