[INFO] cloning repository https://github.com/gaultier/kotlin-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gaultier/kotlin-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaultier%2Fkotlin-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaultier%2Fkotlin-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b568946392d79e8be359c4abb9b0212805532239
[INFO] checking gaultier/kotlin-rs against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaultier%2Fkotlin-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gaultier/kotlin-rs on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gaultier/kotlin-rs
[INFO] finished tweaking git repo https://github.com/gaultier/kotlin-rs
[INFO] tweaked toml for git repo https://github.com/gaultier/kotlin-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/gaultier/kotlin-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty_env_logger v0.3.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a1d1a0b1e5b3483a7b724987b9725a896948a27ebfebe9b29b57a7452559615
[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" "6a1d1a0b1e5b3483a7b724987b9725a896948a27ebfebe9b29b57a7452559615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a1d1a0b1e5b3483a7b724987b9725a896948a27ebfebe9b29b57a7452559615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1d1a0b1e5b3483a7b724987b9725a896948a27ebfebe9b29b57a7452559615", kill_on_drop: false }`
[INFO] [stdout] 6a1d1a0b1e5b3483a7b724987b9725a896948a27ebfebe9b29b57a7452559615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6923b4c653342a76fdbde0286f8e6bf04aeedc38dee6a4bb0f0b5255500db2ad
[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" "6923b4c653342a76fdbde0286f8e6bf04aeedc38dee6a4bb0f0b5255500db2ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking kotlin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::jvm_stack_map_frame::VerificationTypeInfo`
[INFO] [stdout]     --> src/jvm_emitter.rs:1219:9
[INFO] [stdout]      |
[INFO] [stdout] 1219 |     use crate::jvm_stack_map_frame::VerificationTypeInfo;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attributes`
[INFO] [stdout]     --> src/jvm_emitter.rs:1271:24
[INFO] [stdout]      |
[INFO] [stdout] 1271 |             let (code, attributes) = match &main.attributes[0] {
[INFO] [stdout]      |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attributes`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/jvm_code.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     If {
[INFO] [stdout] 14 | |         if_location: u16,
[INFO] [stdout] 15 | |         if_target: u16,
[INFO] [stdout] 16 | |         goto_location: u16,
[INFO] [stdout] 17 | |         goto_target: u16,
[INFO] [stdout] 18 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Goto`
[INFO] [stdout]   --> src/jvm_code.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     Goto {
[INFO] [stdout] 20 | |         location: u16,
[INFO] [stdout] 21 | |         target: u16,
[INFO] [stdout] 22 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/jvm_locals.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub(crate) fn len(&self) -> u16 {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count_max`
[INFO] [stdout]   --> src/jvm_locals.rs:84:19
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub(crate) fn count_max(&self) -> u16 {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count_max`
[INFO] [stdout]   --> src/jvm_stack.rs:47:19
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub(crate) fn count_max(&self) -> u16 {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]  --> src/jvm_stack_map_frame.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Int,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Object`
[INFO] [stdout]  --> src/jvm_stack_map_frame.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Object(u16),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Same`
[INFO] [stdout]   --> src/jvm_stack_map_frame.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     Same {
[INFO] [stdout] 14 | |         offset: u8,
[INFO] [stdout] 15 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SameLocalsOneStackItem`
[INFO] [stdout]   --> src/jvm_stack_map_frame.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     SameLocalsOneStackItem {
[INFO] [stdout] 17 | |         offset: u8,
[INFO] [stdout] 18 | |         stack: VerificationTypeInfo,
[INFO] [stdout] 19 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Full`
[INFO] [stdout]   --> src/jvm_stack_map_frame.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     Full {
[INFO] [stdout] 21 | |         offset: u16,
[INFO] [stdout] 22 | |         locals: Vec<VerificationTypeInfo>,
[INFO] [stdout] 23 | |         stack: Vec<VerificationTypeInfo>,
[INFO] [stdout] 24 | |     }, // More to come
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `class_definitions`
[INFO] [stdout]   --> src/resolver.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     class_definitions: BTreeMap<(Id, &'a str), Definition<'a>>, // Key=(block_id, identifier)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/jvm_code.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     If {
[INFO] [stdout] 14 | |         if_location: u16,
[INFO] [stdout] 15 | |         if_target: u16,
[INFO] [stdout] 16 | |         goto_location: u16,
[INFO] [stdout] 17 | |         goto_target: u16,
[INFO] [stdout] 18 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Goto`
[INFO] [stdout]   --> src/jvm_code.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     Goto {
[INFO] [stdout] 20 | |         location: u16,
[INFO] [stdout] 21 | |         target: u16,
[INFO] [stdout] 22 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/jvm_locals.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub(crate) fn len(&self) -> u16 {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count_max`
[INFO] [stdout]   --> src/jvm_locals.rs:84:19
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub(crate) fn count_max(&self) -> u16 {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count_max`
[INFO] [stdout]   --> src/jvm_stack.rs:47:19
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub(crate) fn count_max(&self) -> u16 {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]  --> src/jvm_stack_map_frame.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Int,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Object`
[INFO] [stdout]  --> src/jvm_stack_map_frame.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Object(u16),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Same`
[INFO] [stdout]   --> src/jvm_stack_map_frame.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     Same {
[INFO] [stdout] 14 | |         offset: u8,
[INFO] [stdout] 15 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SameLocalsOneStackItem`
[INFO] [stdout]   --> src/jvm_stack_map_frame.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     SameLocalsOneStackItem {
[INFO] [stdout] 17 | |         offset: u8,
[INFO] [stdout] 18 | |         stack: VerificationTypeInfo,
[INFO] [stdout] 19 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Full`
[INFO] [stdout]   --> src/jvm_stack_map_frame.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     Full {
[INFO] [stdout] 21 | |         offset: u16,
[INFO] [stdout] 22 | |         locals: Vec<VerificationTypeInfo>,
[INFO] [stdout] 23 | |         stack: Vec<VerificationTypeInfo>,
[INFO] [stdout] 24 | |     }, // More to come
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `class_definitions`
[INFO] [stdout]   --> src/resolver.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     class_definitions: BTreeMap<(Id, &'a str), Definition<'a>>, // Key=(block_id, identifier)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.02s
[INFO] running `Command { std: "docker" "inspect" "6923b4c653342a76fdbde0286f8e6bf04aeedc38dee6a4bb0f0b5255500db2ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6923b4c653342a76fdbde0286f8e6bf04aeedc38dee6a4bb0f0b5255500db2ad", kill_on_drop: false }`
[INFO] [stdout] 6923b4c653342a76fdbde0286f8e6bf04aeedc38dee6a4bb0f0b5255500db2ad