[INFO] fetching crate trans-gen-fsharp 0.3.0-alpha.2...
[INFO] testing trans-gen-fsharp-0.3.0-alpha.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate trans-gen-fsharp 0.3.0-alpha.2 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate trans-gen-fsharp 0.3.0-alpha.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trans-gen-fsharp 0.3.0-alpha.2
[INFO] finished tweaking crates.io crate trans-gen-fsharp 0.3.0-alpha.2
[INFO] tweaked toml for crates.io crate trans-gen-fsharp 0.3.0-alpha.2 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 846563a4d6f5ef79344d4b5522f06efc97e18ce05a1bbdf90c822810a7997c52
[INFO] running `Command { std: "docker" "start" "-a" "846563a4d6f5ef79344d4b5522f06efc97e18ce05a1bbdf90c822810a7997c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "846563a4d6f5ef79344d4b5522f06efc97e18ce05a1bbdf90c822810a7997c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "846563a4d6f5ef79344d4b5522f06efc97e18ce05a1bbdf90c822810a7997c52", kill_on_drop: false }`
[INFO] [stdout] 846563a4d6f5ef79344d4b5522f06efc97e18ce05a1bbdf90c822810a7997c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69ef4067e77ec8d40e490d3c446608a5a4f049b2e10030d2e814b63df5ba6cd1
[INFO] running `Command { std: "docker" "start" "-a" "69ef4067e77ec8d40e490d3c446608a5a4f049b2e10030d2e814b63df5ba6cd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling trans-derive v0.3.0
[INFO] [stderr]    Compiling include_dir_impl v0.6.2
[INFO] [stderr]    Compiling trans v0.3.0
[INFO] [stderr]    Compiling include_dir v0.6.2
[INFO] [stderr]    Compiling trans-gen-core v0.3.0-alpha.2
[INFO] [stderr]    Compiling trans-gen-fsharp v0.3.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |         for (index, field) in struc.fields.iter().enumerate() {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/lib.rs:274:24
[INFO] [stdout]     |
[INFO] [stdout] 274 |     fn new(name: &str, version: &str) -> Self {
[INFO] [stdout]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `discriminant`
[INFO] [stdout]    --> src/lib.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `discriminant`
[INFO] [stdout]    --> src/lib.rs:351:22
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `index_var_name`
[INFO] [stdout]   --> src/lib.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn index_var_name(index_var: &mut usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.81s
[INFO] running `Command { std: "docker" "inspect" "69ef4067e77ec8d40e490d3c446608a5a4f049b2e10030d2e814b63df5ba6cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ef4067e77ec8d40e490d3c446608a5a4f049b2e10030d2e814b63df5ba6cd1", kill_on_drop: false }`
[INFO] [stdout] 69ef4067e77ec8d40e490d3c446608a5a4f049b2e10030d2e814b63df5ba6cd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d0a92d74b857548b4b27d310f528f7e27c82a541f2f4c79bc7327332dfd434f
[INFO] running `Command { std: "docker" "start" "-a" "4d0a92d74b857548b4b27d310f528f7e27c82a541f2f4c79bc7327332dfd434f", kill_on_drop: false }`
[INFO] [stderr]    Compiling trans-gen-fsharp v0.3.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |         for (index, field) in struc.fields.iter().enumerate() {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/lib.rs:274:24
[INFO] [stdout]     |
[INFO] [stdout] 274 |     fn new(name: &str, version: &str) -> Self {
[INFO] [stdout]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `discriminant`
[INFO] [stdout]    --> src/lib.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `discriminant`
[INFO] [stdout]    --> src/lib.rs:351:22
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `index_var_name`
[INFO] [stdout]   --> src/lib.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn index_var_name(index_var: &mut usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |         for (index, field) in struc.fields.iter().enumerate() {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/lib.rs:274:24
[INFO] [stdout]     |
[INFO] [stdout] 274 |     fn new(name: &str, version: &str) -> Self {
[INFO] [stdout]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `discriminant`
[INFO] [stdout]    --> src/lib.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `discriminant`
[INFO] [stdout]    --> src/lib.rs:351:22
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `index_var_name`
[INFO] [stdout]   --> src/lib.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn index_var_name(index_var: &mut usize) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "4d0a92d74b857548b4b27d310f528f7e27c82a541f2f4c79bc7327332dfd434f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0a92d74b857548b4b27d310f528f7e27c82a541f2f4c79bc7327332dfd434f", kill_on_drop: false }`
[INFO] [stdout] 4d0a92d74b857548b4b27d310f528f7e27c82a541f2f4c79bc7327332dfd434f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f80cf1667f5adf27dde52063a28b7608b5357ef8f76bd038d6d5ace11082ca4
[INFO] running `Command { std: "docker" "start" "-a" "5f80cf1667f5adf27dde52063a28b7608b5357ef8f76bd038d6d5ace11082ca4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/lib.rs:81:14
[INFO] [stderr]    |
[INFO] [stderr] 81 |         for (index, field) in struc.fields.iter().enumerate() {
[INFO] [stderr]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]    --> src/lib.rs:274:24
[INFO] [stderr]     |
[INFO] [stderr] 274 |     fn new(name: &str, version: &str) -> Self {
[INFO] [stderr]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `discriminant`
[INFO] [stderr]    --> src/lib.rs:331:22
[INFO] [stderr]     |
[INFO] [stderr] 331 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `discriminant`
[INFO] [stderr]    --> src/lib.rs:351:22
[INFO] [stderr]     |
[INFO] [stderr] 351 |                 for (discriminant, variant) in variants.iter().enumerate() {
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discriminant`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `index_var_name`
[INFO] [stderr]   --> src/lib.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn index_var_name(index_var: &mut usize) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `trans-gen-fsharp` (lib) generated 6 warnings
[INFO] [stderr] warning: `trans-gen-fsharp` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/trans_gen_fsharp-33902403b6a74c65)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trans-gen-fsharp
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f80cf1667f5adf27dde52063a28b7608b5357ef8f76bd038d6d5ace11082ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f80cf1667f5adf27dde52063a28b7608b5357ef8f76bd038d6d5ace11082ca4", kill_on_drop: false }`
[INFO] [stdout] 5f80cf1667f5adf27dde52063a28b7608b5357ef8f76bd038d6d5ace11082ca4