[INFO] cloning repository https://github.com/su-stephen/project-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/su-stephen/project-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsu-stephen%2Fproject-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsu-stephen%2Fproject-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72e75b06eab8c0e99062a290081cc6109dbdba99
[INFO] checking su-stephen/project-vm against master#61cc47e367d7be91e13bcd01e4e96e0e233d4f6d for pr-133502-17
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsu-stephen%2Fproject-vm" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/su-stephen/project-vm
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/su-stephen/project-vm
[INFO] tweaked toml for git repo https://github.com/su-stephen/project-vm written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/su-stephen/project-vm on toolchain 61cc47e367d7be91e13bcd01e4e96e0e233d4f6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/su-stephen/project-vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/explicit_sync_wrapper.rs:34:20
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn acquire(&self) -> Guard<T> {
[INFO] [stdout]    |                    ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn acquire(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `random`
[INFO] [stdout]   --> src/unit_tests/mod.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use rand::{prelude::*, random};
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`, `fmt::Debug`, `hash::Hash`, `marker::PhantomData`, and `sync::Arc`
[INFO] [stdout]   --> src/unit_tests/mod.rs:14:33
[INFO] [stdout]    |
[INFO] [stdout] 14 |         collections::{BTreeMap, HashMap, HashSet},
[INFO] [stdout]    |                                 ^^^^^^^  ^^^^^^^
[INFO] [stdout] 15 |         fmt::Debug,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 16 |         hash::Hash,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 17 |         marker::PhantomData,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |         sync::Arc,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/mvhashmap/versioned_data.rs:240:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |             ReadOutput::Versioned(v, a) => {
[INFO] [stdout]     |             --------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 240 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/explicit_sync_wrapper.rs:34:20
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn acquire(&self) -> Guard<T> {
[INFO] [stdout]    |                    ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn acquire(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.26s
[INFO] running `Command { std: "docker" "inspect" "c3ba879d7cb108b54c3d3aa983ff20ce6555abbbec263c6a2c84c02690a5f979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3ba879d7cb108b54c3d3aa983ff20ce6555abbbec263c6a2c84c02690a5f979", kill_on_drop: false }`
[INFO] [stdout] c3ba879d7cb108b54c3d3aa983ff20ce6555abbbec263c6a2c84c02690a5f979
