[INFO] updating cached repository https://github.com/TrueWarg/f-vm
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5240308c3b12c8f0e1542f14e67c1133fc41d5dc
[INFO] testing TrueWarg/f-vm against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrueWarg%2Ff-vm" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TrueWarg/f-vm on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-13/source/Cargo.toml
[INFO] crate git repo https://github.com/TrueWarg/f-vm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df29923b8ae55d0009226fbaf0c2c689a16d4261bb21393863ce7a7770337e02
[INFO] running `"docker" "start" "-a" "df29923b8ae55d0009226fbaf0c2c689a16d4261bb21393863ce7a7770337e02"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.37
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling f-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `failure::Fail`
[INFO] [stderr]  --> src/virtual_stack_machine.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::Fail;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Push(i32),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Add, 
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AddAssign`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     AddAssign(i32), 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Subtract`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Subtract,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubtractAssign`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     SubtractAssign(i32)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn new(stack: Vec<i32>) -> Vm {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_for_last_and_push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn apply_for_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_for_two_last_and_push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn apply_for_two_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `StackError`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:90:6
[INFO] [stderr]    |
[INFO] [stderr] 90 | enum StackError {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `"docker" "inspect" "df29923b8ae55d0009226fbaf0c2c689a16d4261bb21393863ce7a7770337e02"`
[INFO] running `"docker" "rm" "-f" "df29923b8ae55d0009226fbaf0c2c689a16d4261bb21393863ce7a7770337e02"`
[INFO] [stdout] df29923b8ae55d0009226fbaf0c2c689a16d4261bb21393863ce7a7770337e02
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d45e635c7ec6ff25260af39091447989122feead21711c2a3d0108247dd6760d
[INFO] running `"docker" "start" "-a" "d45e635c7ec6ff25260af39091447989122feead21711c2a3d0108247dd6760d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling f-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `failure::Fail`
[INFO] [stderr]  --> src/virtual_stack_machine.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::Fail;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Push(i32),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Add, 
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AddAssign`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     AddAssign(i32), 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Subtract`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Subtract,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubtractAssign`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     SubtractAssign(i32)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn new(stack: Vec<i32>) -> Vm {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_for_last_and_push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn apply_for_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_for_two_last_and_push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn apply_for_two_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `StackError`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:90:6
[INFO] [stderr]    |
[INFO] [stderr] 90 | enum StackError {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "d45e635c7ec6ff25260af39091447989122feead21711c2a3d0108247dd6760d"`
[INFO] running `"docker" "rm" "-f" "d45e635c7ec6ff25260af39091447989122feead21711c2a3d0108247dd6760d"`
[INFO] [stdout] d45e635c7ec6ff25260af39091447989122feead21711c2a3d0108247dd6760d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f237b83f29892249004765b5e03c33e71fcfeee27d6549f2d4d03cde1bca43b4
[INFO] running `"docker" "start" "-a" "f237b83f29892249004765b5e03c33e71fcfeee27d6549f2d4d03cde1bca43b4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `failure::Fail`
[INFO] [stderr]  --> src/virtual_stack_machine.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::Fail;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Push(i32),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Add, 
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AddAssign`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     AddAssign(i32), 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Subtract`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Subtract,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubtractAssign`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     SubtractAssign(i32)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn new(stack: Vec<i32>) -> Vm {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_for_last_and_push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn apply_for_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_for_two_last_and_push`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn apply_for_two_last_and_push<F>(mut stack: Vec<i32>, apply: F) -> Result<Vec<i32>, StackError>
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `StackError`
[INFO] [stderr]   --> src/virtual_stack_machine.rs:90:6
[INFO] [stderr]    |
[INFO] [stderr] 90 | enum StackError {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/f_vm-c65d89caacca1287
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f237b83f29892249004765b5e03c33e71fcfeee27d6549f2d4d03cde1bca43b4"`
[INFO] running `"docker" "rm" "-f" "f237b83f29892249004765b5e03c33e71fcfeee27d6549f2d4d03cde1bca43b4"`
[INFO] [stdout] f237b83f29892249004765b5e03c33e71fcfeee27d6549f2d4d03cde1bca43b4