[INFO] fetching crate typify_gostruct 1.0.5...
[INFO] building typify_gostruct-1.0.5 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate typify_gostruct 1.0.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate typify_gostruct 1.0.5 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate typify_gostruct 1.0.5
[INFO] finished tweaking crates.io crate typify_gostruct 1.0.5
[INFO] tweaked toml for crates.io crate typify_gostruct 1.0.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate typify_gostruct 1.0.5 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81a0562dab70c4a67a98ff8f26c569d74fda57d6f1acac1c18b4b5e77b79e935
[INFO] running `Command { std: "docker" "start" "-a" "81a0562dab70c4a67a98ff8f26c569d74fda57d6f1acac1c18b4b5e77b79e935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81a0562dab70c4a67a98ff8f26c569d74fda57d6f1acac1c18b4b5e77b79e935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a0562dab70c4a67a98ff8f26c569d74fda57d6f1acac1c18b4b5e77b79e935", kill_on_drop: false }`
[INFO] [stdout] 81a0562dab70c4a67a98ff8f26c569d74fda57d6f1acac1c18b4b5e77b79e935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2c222b2a0bcf481140104aaf23f87469882f32686a5be974531c37329f86526
[INFO] running `Command { std: "docker" "start" "-a" "a2c222b2a0bcf481140104aaf23f87469882f32686a5be974531c37329f86526", kill_on_drop: false }`
[INFO] [stderr]    Compiling typify_gostruct v1.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:129:6
[INFO] [stdout]     |
[INFO] [stdout] 129 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:227:6
[INFO] [stdout]     |
[INFO] [stdout] 227 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/scanner.rs:86:39
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<'a> Scanner<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 86 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                                       ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tag` is never constructed
[INFO] [stdout]   --> src/ast.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Tag {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:56:29
[INFO] [stdout]    |
[INFO] [stdout] 56 |     MissingStringTerminator(Position),
[INFO] [stdout]    |     ----------------------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ScannerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 56 |     MissingStringTerminator(()),
[INFO] [stdout]    |                             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "a2c222b2a0bcf481140104aaf23f87469882f32686a5be974531c37329f86526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2c222b2a0bcf481140104aaf23f87469882f32686a5be974531c37329f86526", kill_on_drop: false }`
[INFO] [stdout] a2c222b2a0bcf481140104aaf23f87469882f32686a5be974531c37329f86526
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21229c8e98b6367d5f4259379167a76022b51fe82c97853b9d4a6aa0c1db0ab7
[INFO] running `Command { std: "docker" "start" "-a" "21229c8e98b6367d5f4259379167a76022b51fe82c97853b9d4a6aa0c1db0ab7", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:129:6
[INFO] [stdout]     |
[INFO] [stdout] 129 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:227:6
[INFO] [stdout]     |
[INFO] [stdout] 227 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/scanner.rs:86:39
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<'a> Scanner<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 86 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                                       ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tag` is never constructed
[INFO] [stdout]   --> src/ast.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Tag {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling typify_gostruct v1.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:56:29
[INFO] [stdout]    |
[INFO] [stdout] 56 |     MissingStringTerminator(Position),
[INFO] [stdout]    |     ----------------------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ScannerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 56 |     MissingStringTerminator(()),
[INFO] [stdout]    |                             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:129:6
[INFO] [stdout]     |
[INFO] [stdout] 129 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parser.rs:227:6
[INFO] [stdout]     |
[INFO] [stdout] 227 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/scanner.rs:86:39
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<'a> Scanner<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 86 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                                       ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tag` is never constructed
[INFO] [stdout]   --> src/ast.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Tag {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:56:29
[INFO] [stdout]    |
[INFO] [stdout] 56 |     MissingStringTerminator(Position),
[INFO] [stdout]    |     ----------------------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ScannerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 56 |     MissingStringTerminator(()),
[INFO] [stdout]    |                             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "21229c8e98b6367d5f4259379167a76022b51fe82c97853b9d4a6aa0c1db0ab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21229c8e98b6367d5f4259379167a76022b51fe82c97853b9d4a6aa0c1db0ab7", kill_on_drop: false }`
[INFO] [stdout] 21229c8e98b6367d5f4259379167a76022b51fe82c97853b9d4a6aa0c1db0ab7