[INFO] fetching crate welly-parser 0.3.0...
[INFO] testing welly-parser-0.3.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate welly-parser 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate welly-parser 0.3.0
[INFO] finished tweaking crates.io crate welly-parser 0.3.0
[INFO] tweaked toml for crates.io crate welly-parser 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate welly-parser 0.3.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate welly-parser 0.3.0 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f73835217e84a9f07fb5e8b271c5f34072cd7bbc9defa775cfa877621301415
[INFO] running `Command { std: "docker" "start" "-a" "7f73835217e84a9f07fb5e8b271c5f34072cd7bbc9defa775cfa877621301415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f73835217e84a9f07fb5e8b271c5f34072cd7bbc9defa775cfa877621301415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f73835217e84a9f07fb5e8b271c5f34072cd7bbc9defa775cfa877621301415", kill_on_drop: false }`
[INFO] [stdout] 7f73835217e84a9f07fb5e8b271c5f34072cd7bbc9defa775cfa877621301415
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38cccbfcb0088ce8d4d7f3c98253b0b0728c415a107b8461253b53e0c180b024
[INFO] running `Command { std: "docker" "start" "-a" "38cccbfcb0088ce8d4d7f3c98253b0b0728c415a107b8461253b53e0c180b024", kill_on_drop: false }`
[INFO] [stderr]    Compiling welly-parser v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/ast.rs:387:17
[INFO] [stdout]     |
[INFO] [stdout] 387 | pub struct Case(Location, Box<LExpr>, Block);
[INFO] [stdout]     |            ---- ^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `Case` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/ast.rs:406:17
[INFO] [stdout]     |
[INFO] [stdout] 406 | pub struct Else(Location, Block);
[INFO] [stdout]     |            ---- ^^^^^^^^  ^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `Else` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:543:18
[INFO] [stdout]     |
[INFO] [stdout] 543 | pub struct Block(Box<[Stmt]>);
[INFO] [stdout]     |            ----- ^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "38cccbfcb0088ce8d4d7f3c98253b0b0728c415a107b8461253b53e0c180b024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38cccbfcb0088ce8d4d7f3c98253b0b0728c415a107b8461253b53e0c180b024", kill_on_drop: false }`
[INFO] [stdout] 38cccbfcb0088ce8d4d7f3c98253b0b0728c415a107b8461253b53e0c180b024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fbed86468ee9bd8ba0f7e367407c66bea1d875e2207c4d14485e88482efa4df
[INFO] running `Command { std: "docker" "start" "-a" "6fbed86468ee9bd8ba0f7e367407c66bea1d875e2207c4d14485e88482efa4df", kill_on_drop: false }`
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/ast.rs:387:17
[INFO] [stdout]     |
[INFO] [stdout] 387 | pub struct Case(Location, Box<LExpr>, Block);
[INFO] [stdout]     |            ---- ^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `Case` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/ast.rs:406:17
[INFO] [stdout]     |
[INFO] [stdout] 406 | pub struct Else(Location, Block);
[INFO] [stdout]     |            ---- ^^^^^^^^  ^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `Else` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling welly-parser v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:543:18
[INFO] [stdout]     |
[INFO] [stdout] 543 | pub struct Block(Box<[Stmt]>);
[INFO] [stdout]     |            ----- ^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/ast.rs:387:17
[INFO] [stdout]     |
[INFO] [stdout] 387 | pub struct Case(Location, Box<LExpr>, Block);
[INFO] [stdout]     |            ---- ^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `Case` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/ast.rs:406:17
[INFO] [stdout]     |
[INFO] [stdout] 406 | pub struct Else(Location, Block);
[INFO] [stdout]     |            ---- ^^^^^^^^  ^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `Else` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:543:18
[INFO] [stdout]     |
[INFO] [stdout] 543 | pub struct Block(Box<[Stmt]>);
[INFO] [stdout]     |            ----- ^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "6fbed86468ee9bd8ba0f7e367407c66bea1d875e2207c4d14485e88482efa4df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fbed86468ee9bd8ba0f7e367407c66bea1d875e2207c4d14485e88482efa4df", kill_on_drop: false }`
[INFO] [stdout] 6fbed86468ee9bd8ba0f7e367407c66bea1d875e2207c4d14485e88482efa4df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 736da4a8b0ec2ae7c52ed92bebaaa57e8b8be1815cb2772ecdc44f97cc45d402
[INFO] running `Command { std: "docker" "start" "-a" "736da4a8b0ec2ae7c52ed92bebaaa57e8b8be1815cb2772ecdc44f97cc45d402", kill_on_drop: false }`
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]    --> src/ast.rs:387:17
[INFO] [stderr]     |
[INFO] [stderr] 387 | pub struct Case(Location, Box<LExpr>, Block);
[INFO] [stderr]     |            ---- ^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            fields in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing these fields
[INFO] [stderr]     = note: `Case` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]    --> src/ast.rs:406:17
[INFO] [stderr]     |
[INFO] [stderr] 406 | pub struct Else(Location, Block);
[INFO] [stderr]     |            ---- ^^^^^^^^  ^^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            fields in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing these fields
[INFO] [stderr]     = note: `Else` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/ast.rs:543:18
[INFO] [stderr]     |
[INFO] [stderr] 543 | pub struct Block(Box<[Stmt]>);
[INFO] [stderr]     |            ----- ^^^^^^^^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing this field
[INFO] [stderr]     = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `welly-parser` (lib) generated 3 warnings
[INFO] [stderr] warning: `welly-parser` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/welly_parser-7761cca5d5697bd8)
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test bracket::tests::some_brackets ... ok
[INFO] [stdout] test bracket::tests::inside_out ... ok
[INFO] [stdout] test buffer::tests::five ... ok
[INFO] [stdout] test buffer::tests::whitespace ... ok
[INFO] [stdout] test buffer::tests::if_ ... ok
[INFO] [stdout] test buffer::tests::fn_ ... ok
[INFO] [stdout] test buffer::tests::if_else ... ok
[INFO] [stdout] test buffer::tests::semicolon ... ok
[INFO] [stdout] test expr::tests::ergonomics1 ... ok
[INFO] [stdout] test expr::tests::ergonomics4 ... ok
[INFO] [stdout] test expr::tests::ergonomics2 ... ok
[INFO] [stdout] test expr::tests::ergonomics3 ... ok
[INFO] [stdout] test expr::tests::ergonomics5 ... ok
[INFO] [stdout] test expr::op::tests::limits ... ok
[INFO] [stdout] test expr::tests::ergonomics6 ... ok
[INFO] [stdout] test expr::tests::ergonomics7 ... ok
[INFO] [stdout] test expr::tests::ergonomics8 ... ok
[INFO] [stdout] test expr::tests::missing ... ok
[INFO] [stdout] test lexer::tests::bad_char ... ok
[INFO] [stdout] test lexer::tests::bad_str ... ok
[INFO] [stdout] test lexer::tests::block_comment_eof ... ok
[INFO] [stdout] test lexer::tests::empty_char ... ok
[INFO] [stdout] test lexer::tests::bad_newline ... ok
[INFO] [stdout] test lexer::tests::double_char ... ok
[INFO] [stdout] test lexer::tests::escapes ... ok
[INFO] [stdout] test stmt::tests::break_ ... ok
[INFO] [stdout] test lexer::tests::line_comment ... ok
[INFO] [stdout] test lexer::tests::line_comment_eof ... ok
[INFO] [stdout] test stmt::tests::assign ... ok
[INFO] [stdout] test lexer::tests::block_comment ... ok
[INFO] [stdout] test stmt::tests::switch ... ok
[INFO] [stdout] test stmt::tests::return_ ... ok
[INFO] [stdout] test stmt::tests::print ... ok
[INFO] [stdout] test word::tests::keywords ... ok
[INFO] [stdout] test stmt::tests::if_ ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/welly_parser-9e40c26aae53e22a)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests welly_parser
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/buffer.rs - buffer::Buffer (line 38) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree (line 31) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::complete (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "736da4a8b0ec2ae7c52ed92bebaaa57e8b8be1815cb2772ecdc44f97cc45d402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "736da4a8b0ec2ae7c52ed92bebaaa57e8b8be1815cb2772ecdc44f97cc45d402", kill_on_drop: false }`
[INFO] [stdout] 736da4a8b0ec2ae7c52ed92bebaaa57e8b8be1815cb2772ecdc44f97cc45d402