[INFO] cloning repository https://github.com/filakhtov/qemu-launcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/filakhtov/qemu-launcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffilakhtov%2Fqemu-launcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffilakhtov%2Fqemu-launcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ceb4cbbde125d3796e5319ca742ce0fc87916b55
[INFO] checking filakhtov/qemu-launcher against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffilakhtov%2Fqemu-launcher" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/filakhtov/qemu-launcher on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/filakhtov/qemu-launcher
[INFO] finished tweaking git repo https://github.com/filakhtov/qemu-launcher
[INFO] tweaked toml for git repo https://github.com/filakhtov/qemu-launcher written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/filakhtov/qemu-launcher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded partition-identity v0.2.8
[INFO] [stderr]   Downloaded proc-mounts v0.2.4
[INFO] [stderr]   Downloaded rlimit v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3d8a4b33393426f5fd46c51c2fbd83e92091f6a88c89bb81b3a2723abd89810
[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" "c3d8a4b33393426f5fd46c51c2fbd83e92091f6a88c89bb81b3a2723abd89810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3d8a4b33393426f5fd46c51c2fbd83e92091f6a88c89bb81b3a2723abd89810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d8a4b33393426f5fd46c51c2fbd83e92091f6a88c89bb81b3a2723abd89810", kill_on_drop: false }`
[INFO] [stdout] c3d8a4b33393426f5fd46c51c2fbd83e92091f6a88c89bb81b3a2723abd89810
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22e54ce6d092a80a92a98f050f4bf8f1a38f8d87169e703d148c1bfa3724b2da
[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" "22e54ce6d092a80a92a98f050f4bf8f1a38f8d87169e703d148c1bfa3724b2da", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking rlimit v0.5.3
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking partition-identity v0.2.8
[INFO] [stderr]     Checking proc-mounts v0.2.4
[INFO] [stderr]     Checking qemu-launcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `program_name`
[INFO] [stdout]   --> src/arguments.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     program_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `debug`
[INFO] [stdout]   --> src/arguments.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     debug: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `verbose`
[INFO] [stdout]   --> src/arguments.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     verbose: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_debug_enabled`
[INFO] [stdout]   --> src/arguments.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn is_debug_enabled(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_verbose_mode`
[INFO] [stdout]   --> src/arguments.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn is_verbose_mode(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_program_name`
[INFO] [stdout]   --> src/arguments.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn get_program_name(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.22s
[INFO] running `Command { std: "docker" "inspect" "22e54ce6d092a80a92a98f050f4bf8f1a38f8d87169e703d148c1bfa3724b2da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e54ce6d092a80a92a98f050f4bf8f1a38f8d87169e703d148c1bfa3724b2da", kill_on_drop: false }`
[INFO] [stdout] 22e54ce6d092a80a92a98f050f4bf8f1a38f8d87169e703d148c1bfa3724b2da