[INFO] cloning repository https://github.com/fslongjin/kvm_userspace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fslongjin/kvm_userspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffslongjin%2Fkvm_userspace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffslongjin%2Fkvm_userspace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5da6e41e5b81dfefaed646d54c20406aa1d20b84
[INFO] testing fslongjin/kvm_userspace against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffslongjin%2Fkvm_userspace" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fslongjin/kvm_userspace
[INFO] finished tweaking git repo https://github.com/fslongjin/kvm_userspace
[INFO] tweaked toml for git repo https://github.com/fslongjin/kvm_userspace written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fslongjin/kvm_userspace on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fslongjin/kvm_userspace 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cddc0fe7c488fede7531f29c02f836544d52070c6773dba1116bb425baf0cc77
[INFO] running `Command { std: "docker" "start" "-a" "cddc0fe7c488fede7531f29c02f836544d52070c6773dba1116bb425baf0cc77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cddc0fe7c488fede7531f29c02f836544d52070c6773dba1116bb425baf0cc77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cddc0fe7c488fede7531f29c02f836544d52070c6773dba1116bb425baf0cc77", kill_on_drop: false }`
[INFO] [stdout] cddc0fe7c488fede7531f29c02f836544d52070c6773dba1116bb425baf0cc77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e46978a4d201cf86d92b8c7348f1f53a714b386de22a271061e35d7dfa941e0
[INFO] running `Command { std: "docker" "start" "-a" "5e46978a4d201cf86d92b8c7348f1f53a714b386de22a271061e35d7dfa941e0", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling kvm-ioctls v0.13.0
[INFO] [stderr]    Compiling vmm-sys-util v0.11.1
[INFO] [stderr]    Compiling kvm-bindings v0.6.0
[INFO] [stderr]    Compiling kvm_userspace v0.1.0 (/opt/rustwide/workdir/kvm_userspace)
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]    --> kvm_userspace/src/main.rs:128:45
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 kvm_ioctls::VcpuExit::IoOut(port, data) => {
[INFO] [stdout]     |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reason`
[INFO] [stdout]    --> kvm_userspace/src/main.rs:132:49
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 kvm_ioctls::VcpuExit::FailEntry(reason, vcpu) => {
[INFO] [stdout]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vcpu`
[INFO] [stdout]    --> kvm_userspace/src/main.rs:132:57
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 kvm_ioctls::VcpuExit::FailEntry(reason, vcpu) => {
[INFO] [stdout]     |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_vcpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kvm` is never read
[INFO] [stdout]   --> kvm_userspace/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Vm {
[INFO] [stdout]    |        -- field in this struct
[INFO] [stdout] 12 |     kvm: Kvm,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "5e46978a4d201cf86d92b8c7348f1f53a714b386de22a271061e35d7dfa941e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e46978a4d201cf86d92b8c7348f1f53a714b386de22a271061e35d7dfa941e0", kill_on_drop: false }`
[INFO] [stdout] 5e46978a4d201cf86d92b8c7348f1f53a714b386de22a271061e35d7dfa941e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83deb1244cdc419941732929519677c82a0f92e5806356b89d1e4a168138aef0
[INFO] running `Command { std: "docker" "start" "-a" "83deb1244cdc419941732929519677c82a0f92e5806356b89d1e4a168138aef0", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling kvm_userspace v0.1.0 (/opt/rustwide/workdir/kvm_userspace)
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]    --> kvm_userspace/src/main.rs:128:45
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 kvm_ioctls::VcpuExit::IoOut(port, data) => {
[INFO] [stdout]     |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reason`
[INFO] [stdout]    --> kvm_userspace/src/main.rs:132:49
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 kvm_ioctls::VcpuExit::FailEntry(reason, vcpu) => {
[INFO] [stdout]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vcpu`
[INFO] [stdout]    --> kvm_userspace/src/main.rs:132:57
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 kvm_ioctls::VcpuExit::FailEntry(reason, vcpu) => {
[INFO] [stdout]     |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_vcpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kvm` is never read
[INFO] [stdout]   --> kvm_userspace/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Vm {
[INFO] [stdout]    |        -- field in this struct
[INFO] [stdout] 12 |     kvm: Kvm,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "83deb1244cdc419941732929519677c82a0f92e5806356b89d1e4a168138aef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83deb1244cdc419941732929519677c82a0f92e5806356b89d1e4a168138aef0", kill_on_drop: false }`
[INFO] [stdout] 83deb1244cdc419941732929519677c82a0f92e5806356b89d1e4a168138aef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86e7c2f2c014d569111d428225d201a8166f4a9d1d6a17ae7f676290a142cba9
[INFO] running `Command { std: "docker" "start" "-a" "86e7c2f2c014d569111d428225d201a8166f4a9d1d6a17ae7f676290a142cba9", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]    --> kvm_userspace/src/main.rs:128:45
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 kvm_ioctls::VcpuExit::IoOut(port, data) => {
[INFO] [stderr]     |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]    --> kvm_userspace/src/main.rs:132:49
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 kvm_ioctls::VcpuExit::FailEntry(reason, vcpu) => {
[INFO] [stderr]     |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reason`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vcpu`
[INFO] [stderr]    --> kvm_userspace/src/main.rs:132:57
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 kvm_ioctls::VcpuExit::FailEntry(reason, vcpu) => {
[INFO] [stderr]     |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_vcpu`
[INFO] [stderr] 
[INFO] [stderr] warning: field `kvm` is never read
[INFO] [stderr]   --> kvm_userspace/src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct Vm {
[INFO] [stderr]    |        -- field in this struct
[INFO] [stderr] 12 |     kvm: Kvm,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kvm_userspace` (bin "kvm_userspace" test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/kvm_userspace-e093a5e81ac96b23)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "86e7c2f2c014d569111d428225d201a8166f4a9d1d6a17ae7f676290a142cba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e7c2f2c014d569111d428225d201a8166f4a9d1d6a17ae7f676290a142cba9", kill_on_drop: false }`
[INFO] [stdout] 86e7c2f2c014d569111d428225d201a8166f4a9d1d6a17ae7f676290a142cba9