[INFO] cloning repository https://github.com/tanyanbo/vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tanyanbo/vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanyanbo%2Fvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanyanbo%2Fvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42fb8c54ec8b3112237acfc7ebe496e6e7652b7b
[INFO] checking tanyanbo/vm against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanyanbo%2Fvm" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tanyanbo/vm on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tanyanbo/vm
[INFO] finished tweaking git repo https://github.com/tanyanbo/vm
[INFO] tweaked toml for git repo https://github.com/tanyanbo/vm written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tanyanbo/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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d1c2810ec41dd0a9883206d4075c196d366481bb0760b28fbed9c690bd46dd2
[INFO] running `Command { std: "docker" "start" "-a" "2d1c2810ec41dd0a9883206d4075c196d366481bb0760b28fbed9c690bd46dd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d1c2810ec41dd0a9883206d4075c196d366481bb0760b28fbed9c690bd46dd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d1c2810ec41dd0a9883206d4075c196d366481bb0760b28fbed9c690bd46dd2", kill_on_drop: false }`
[INFO] [stdout] 2d1c2810ec41dd0a9883206d4075c196d366481bb0760b28fbed9c690bd46dd2
[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_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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ad883180b312c18743278b24cfd426dead61435f23b1891832bad4c6c8b7868
[INFO] running `Command { std: "docker" "start" "-a" "6ad883180b312c18743278b24cfd426dead61435f23b1891832bad4c6c8b7868", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/value/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 19 |         vars: Vec<Var>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/value/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 19 |         vars: Vec<Var>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.35s
[INFO] running `Command { std: "docker" "inspect" "6ad883180b312c18743278b24cfd426dead61435f23b1891832bad4c6c8b7868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad883180b312c18743278b24cfd426dead61435f23b1891832bad4c6c8b7868", kill_on_drop: false }`
[INFO] [stdout] 6ad883180b312c18743278b24cfd426dead61435f23b1891832bad4c6c8b7868
[INFO] checking tanyanbo/vm against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanyanbo%2Fvm" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tanyanbo/vm on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tanyanbo/vm
[INFO] finished tweaking git repo https://github.com/tanyanbo/vm
[INFO] tweaked toml for git repo https://github.com/tanyanbo/vm written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tanyanbo/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68c5a11ad062c29fd617233521100c2b343013acf92d381afd2566eaaa393ae6
[INFO] running `Command { std: "docker" "start" "-a" "68c5a11ad062c29fd617233521100c2b343013acf92d381afd2566eaaa393ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68c5a11ad062c29fd617233521100c2b343013acf92d381afd2566eaaa393ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c5a11ad062c29fd617233521100c2b343013acf92d381afd2566eaaa393ae6", kill_on_drop: false }`
[INFO] [stdout] 68c5a11ad062c29fd617233521100c2b343013acf92d381afd2566eaaa393ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76550433d0c8519b2e47e849b85ed3e484d5ac9dfbbd02d65e686191d1d68e7f
[INFO] running `Command { std: "docker" "start" "-a" "76550433d0c8519b2e47e849b85ed3e484d5ac9dfbbd02d65e686191d1d68e7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/value/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 19 |         vars: Vec<Var>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/value/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 19 |         vars: Vec<Var>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.25s
[INFO] running `Command { std: "docker" "inspect" "76550433d0c8519b2e47e849b85ed3e484d5ac9dfbbd02d65e686191d1d68e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76550433d0c8519b2e47e849b85ed3e484d5ac9dfbbd02d65e686191d1d68e7f", kill_on_drop: false }`
[INFO] [stdout] 76550433d0c8519b2e47e849b85ed3e484d5ac9dfbbd02d65e686191d1d68e7f