[INFO] cloning repository https://github.com/eddybk/rust_vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eddybk/rust_vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddybk%2Frust_vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddybk%2Frust_vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b9973ed2a322e902530e318949a7d1b5af104f7
[INFO] testing eddybk/rust_vm against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddybk%2Frust_vm" "/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/eddybk/rust_vm on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eddybk/rust_vm
[INFO] finished tweaking git repo https://github.com/eddybk/rust_vm
[INFO] tweaked toml for git repo https://github.com/eddybk/rust_vm written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/eddybk/rust_vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e09db047a6041344f97fa9daa44aafb27d9d0611e8f53756027db1e9dc87f7cf
[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" "e09db047a6041344f97fa9daa44aafb27d9d0611e8f53756027db1e9dc87f7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e09db047a6041344f97fa9daa44aafb27d9d0611e8f53756027db1e9dc87f7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e09db047a6041344f97fa9daa44aafb27d9d0611e8f53756027db1e9dc87f7cf", kill_on_drop: false }`
[INFO] [stdout] e09db047a6041344f97fa9daa44aafb27d9d0611e8f53756027db1e9dc87f7cf
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 64f7cb995071731d8123a1e95e9d10269316ec6870835cbac4ec5a579df09472
[INFO] running `Command { std: "docker" "start" "-a" "64f7cb995071731d8123a1e95e9d10269316ec6870835cbac4ec5a579df09472", kill_on_drop: false }`
[INFO] [stderr]    Compiling lvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Head`, `Tail`, `string::StringView`
[INFO] [stdout]  --> src/main.rs:9:36
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::{vm::VM, list::{AsList, Tail, Head}, string::StringView, io::cout};
[INFO] [stdout]   |                                    ^^^^  ^^^^   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let list = vec![1,2,3,4,5,6].as_list();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `at`
[INFO] [stdout]   --> src/./utils/list.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn at(&self, i: usize) -> T {
[INFO] [stdout]    |            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]   --> src/./utils/list.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn last(&self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_vec`
[INFO] [stdout]   --> src/./utils/list.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn as_vec(&self) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./utils/string.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new() -> StringView {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]   --> src/./utils/string.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn from(data: String) -> StringView {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/./utils/string.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn size(&self) -> usize {
[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 3.72s
[INFO] running `Command { std: "docker" "inspect" "64f7cb995071731d8123a1e95e9d10269316ec6870835cbac4ec5a579df09472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f7cb995071731d8123a1e95e9d10269316ec6870835cbac4ec5a579df09472", kill_on_drop: false }`
[INFO] [stdout] 64f7cb995071731d8123a1e95e9d10269316ec6870835cbac4ec5a579df09472
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 7bc1dfb914b385d5d59cf70798697771b331720bea047e31b25e1528a4e3d195
[INFO] running `Command { std: "docker" "start" "-a" "7bc1dfb914b385d5d59cf70798697771b331720bea047e31b25e1528a4e3d195", kill_on_drop: false }`
[INFO] [stderr]    Compiling lvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Head`, `Tail`, `string::StringView`
[INFO] [stdout]  --> src/main.rs:9:36
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::{vm::VM, list::{AsList, Tail, Head}, string::StringView, io::cout};
[INFO] [stdout]   |                                    ^^^^  ^^^^   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let list = vec![1,2,3,4,5,6].as_list();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `at`
[INFO] [stdout]   --> src/./utils/list.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn at(&self, i: usize) -> T {
[INFO] [stdout]    |            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]   --> src/./utils/list.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn last(&self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_vec`
[INFO] [stdout]   --> src/./utils/list.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn as_vec(&self) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./utils/string.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new() -> StringView {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]   --> src/./utils/string.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn from(data: String) -> StringView {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/./utils/string.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn size(&self) -> usize {
[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 2.16s
[INFO] running `Command { std: "docker" "inspect" "7bc1dfb914b385d5d59cf70798697771b331720bea047e31b25e1528a4e3d195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc1dfb914b385d5d59cf70798697771b331720bea047e31b25e1528a4e3d195", kill_on_drop: false }`
[INFO] [stdout] 7bc1dfb914b385d5d59cf70798697771b331720bea047e31b25e1528a4e3d195
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 30e3eb6ea4f9172c3bfde604de9dd8a93f9f4b75fcf46fd34e5711f57ced3c49
[INFO] running `Command { std: "docker" "start" "-a" "30e3eb6ea4f9172c3bfde604de9dd8a93f9f4b75fcf46fd34e5711f57ced3c49", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Head`, `Tail`, `string::StringView`
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:9:36
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 9 | use crate::{vm::VM, list::{AsList, Tail, Head}, string::StringView, io::cout};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |                                    ^^^^  ^^^^   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let list = vec![1,2,3,4,5,6].as_list();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `at`
[INFO] [stderr]   --> src/./utils/list.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn at(&self, i: usize) -> T {
[INFO] [stderr]    |            ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `last`
[INFO] [stderr]   --> src/./utils/list.rs:72:12
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn last(&self) -> T {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `as_vec`
[INFO] [stderr]   --> src/./utils/list.rs:75:12
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn as_vec(&self) -> Vec<T> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/./utils/string.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new() -> StringView {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from`
[INFO] [stderr]   --> src/./utils/string.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn from(data: String) -> StringView {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `size`
[INFO] [stderr]   --> src/./utils/string.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn size(&self) -> usize {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lvm` (bin "lvm" test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lvm-650655ef023aed8e)
[INFO] running `Command { std: "docker" "inspect" "30e3eb6ea4f9172c3bfde604de9dd8a93f9f4b75fcf46fd34e5711f57ced3c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e3eb6ea4f9172c3bfde604de9dd8a93f9f4b75fcf46fd34e5711f57ced3c49", kill_on_drop: false }`
[INFO] [stdout] 30e3eb6ea4f9172c3bfde604de9dd8a93f9f4b75fcf46fd34e5711f57ced3c49