[INFO] cloning repository https://github.com/TrueWarg/f-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TrueWarg/f-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrueWarg%2Ff-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrueWarg%2Ff-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5240308c3b12c8f0e1542f14e67c1133fc41d5dc
[INFO] checking TrueWarg/f-vm against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrueWarg%2Ff-vm" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TrueWarg/f-vm on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TrueWarg/f-vm
[INFO] finished tweaking git repo https://github.com/TrueWarg/f-vm
[INFO] tweaked toml for git repo https://github.com/TrueWarg/f-vm written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/TrueWarg/f-vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", 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] 87fe8fab70b8a6b1a2699743b8d29af2bf8b751eb5b478cbf1a7fbedbd6a8fdd
[INFO] running `Command { std: "docker" "start" "-a" "87fe8fab70b8a6b1a2699743b8d29af2bf8b751eb5b478cbf1a7fbedbd6a8fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87fe8fab70b8a6b1a2699743b8d29af2bf8b751eb5b478cbf1a7fbedbd6a8fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87fe8fab70b8a6b1a2699743b8d29af2bf8b751eb5b478cbf1a7fbedbd6a8fdd", kill_on_drop: false }`
[INFO] [stdout] 87fe8fab70b8a6b1a2699743b8d29af2bf8b751eb5b478cbf1a7fbedbd6a8fdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--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] 623cf70ef4c5deb55b0471ae1ae2c87f44683d6147229367c43fb3cfdce066e7
[INFO] running `Command { std: "docker" "start" "-a" "623cf70ef4c5deb55b0471ae1ae2c87f44683d6147229367c43fb3cfdce066e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking f-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `failure::Fail`
[INFO] [stdout]  --> src/virtual_stack_machine.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use failure::Fail;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Push`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Push(i32),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Add`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Add, 
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddAssign`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     AddAssign(i32), 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Subtract`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Subtract,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubtractAssign`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     SubtractAssign(i32)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn new(stack: Vec<i32>) -> Vm {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `apply_for_last_and_push`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn apply_for_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `apply_for_two_last_and_push`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn apply_for_two_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StackError`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:90:6
[INFO] [stdout]    |
[INFO] [stdout] 90 | enum StackError {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::Fail`
[INFO] [stdout]  --> src/virtual_stack_machine.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use failure::Fail;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Push`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Push(i32),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Add`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Add, 
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddAssign`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     AddAssign(i32), 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Subtract`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Subtract,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubtractAssign`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     SubtractAssign(i32)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn new(stack: Vec<i32>) -> Vm {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `apply_for_last_and_push`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn apply_for_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `apply_for_two_last_and_push`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn apply_for_two_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StackError`
[INFO] [stdout]   --> src/virtual_stack_machine.rs:90:6
[INFO] [stdout]    |
[INFO] [stdout] 90 | enum StackError {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.92s
[INFO] running `Command { std: "docker" "inspect" "623cf70ef4c5deb55b0471ae1ae2c87f44683d6147229367c43fb3cfdce066e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "623cf70ef4c5deb55b0471ae1ae2c87f44683d6147229367c43fb3cfdce066e7", kill_on_drop: false }`
[INFO] [stdout] 623cf70ef4c5deb55b0471ae1ae2c87f44683d6147229367c43fb3cfdce066e7