[INFO] fetching crate muncher 0.7.0...
[INFO] testing muncher-0.7.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate muncher 0.7.0 into /workspace/builds/worker-109/source
[INFO] validating manifest of crates.io crate muncher 0.7.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate muncher 0.7.0
[INFO] finished tweaking crates.io crate muncher 0.7.0
[INFO] tweaked toml for crates.io crate muncher 0.7.0 written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aaa19a9d390a9364483249bc73263d96bcf18eb4e4a2763c87943660d8d2c763
[INFO] running `Command { std: "docker" "start" "-a" "aaa19a9d390a9364483249bc73263d96bcf18eb4e4a2763c87943660d8d2c763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaa19a9d390a9364483249bc73263d96bcf18eb4e4a2763c87943660d8d2c763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa19a9d390a9364483249bc73263d96bcf18eb4e4a2763c87943660d8d2c763", kill_on_drop: false }`
[INFO] [stdout] aaa19a9d390a9364483249bc73263d96bcf18eb4e4a2763c87943660d8d2c763
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d378ec7bf506102b67da34e598862b72962eda92966de7c69ca66d1d8d4e902e
[INFO] running `Command { std: "docker" "start" "-a" "d378ec7bf506102b67da34e598862b72962eda92966de7c69ca66d1d8d4e902e", kill_on_drop: false }`
[INFO] [stderr]    Compiling muncher v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `input`
[INFO] [stdout]   --> src/muncher.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     input: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]   --> src/muncher.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pos: (usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "d378ec7bf506102b67da34e598862b72962eda92966de7c69ca66d1d8d4e902e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d378ec7bf506102b67da34e598862b72962eda92966de7c69ca66d1d8d4e902e", kill_on_drop: false }`
[INFO] [stdout] d378ec7bf506102b67da34e598862b72962eda92966de7c69ca66d1d8d4e902e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e0d878b20bd6dc0753aff3143f21b56ac980174a6647a963aee10c1e3ad0ca1
[INFO] running `Command { std: "docker" "start" "-a" "9e0d878b20bd6dc0753aff3143f21b56ac980174a6647a963aee10c1e3ad0ca1", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `input`
[INFO] [stdout]   --> src/muncher.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     input: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling muncher v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]   --> src/muncher.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pos: (usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `input`
[INFO] [stdout]   --> src/muncher.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     input: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]   --> src/muncher.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pos: (usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "9e0d878b20bd6dc0753aff3143f21b56ac980174a6647a963aee10c1e3ad0ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0d878b20bd6dc0753aff3143f21b56ac980174a6647a963aee10c1e3ad0ca1", kill_on_drop: false }`
[INFO] [stdout] 9e0d878b20bd6dc0753aff3143f21b56ac980174a6647a963aee10c1e3ad0ca1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] afd5fe49358f3fa2974d9af21048ac12019a01ae2879e0f735cffc3133f91692
[INFO] running `Command { std: "docker" "start" "-a" "afd5fe49358f3fa2974d9af21048ac12019a01ae2879e0f735cffc3133f91692", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `input`
[INFO] [stderr]   --> src/muncher.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     input: &'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pos`
[INFO] [stderr]   --> src/muncher.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pos: (usize, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `muncher` (lib) generated 2 warnings
[INFO] [stderr] warning: `muncher` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/muncher-ef482e4fa98309cf)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test muncher::tests::advance_muncher ... ok
[INFO] [stdout] test muncher::tests::bounds_error_this_panics_if_bounds_wrong ... ok
[INFO] [stdout] test muncher::tests::eat_eol ... ok
[INFO] [stdout] test muncher::tests::end_eat_while_muncher ... ok
[INFO] [stdout] test muncher::tests::fork ... ok
[INFO] [stdout] test muncher::tests::fork_codepoints ... ok
[INFO] [stdout] test muncher::tests::peek_count ... ok
[INFO] [stdout] test muncher::tests::peek_count_codepoints ... ok
[INFO] [stdout] test muncher::tests::peek_muncher ... ok
[INFO] [stdout] test muncher::tests::peek_range_of ... ok
[INFO] [stdout] test muncher::tests::position ... ok
[INFO] [stdout] test muncher::tests::position_codepoints ... ok
[INFO] [stdout] test muncher::tests::seek_muncher ... ok
[INFO] [stdout] test muncher::tests::seek_muncher_codepoints ... ok
[INFO] [stdout] test muncher::tests::stack_code ... ok
[INFO] [stdout] test muncher::tests::stack_fail ... ok
[INFO] [stdout] test muncher::tests::stack_math ... ok
[INFO] [stdout] test muncher::tests::test_stack_code ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests muncher
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test src/muncher.rs - muncher::Stack::new (line 27) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::cursor_position (line 228) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::new (line 153) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::fork (line 172) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::peek_range_of (line 343) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat_until_count (line 520) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat (line 390) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::brace_stack (line 193) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::peek_until_count (line 311) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat_range_of (line 551) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::eat_until (line 489) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::peek_until (line 280) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Stack::is_matched (line 91) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Muncher::seek (line 368) ... ok
[INFO] [stdout] test src/muncher.rs - muncher::Stack::eat (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "afd5fe49358f3fa2974d9af21048ac12019a01ae2879e0f735cffc3133f91692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd5fe49358f3fa2974d9af21048ac12019a01ae2879e0f735cffc3133f91692", kill_on_drop: false }`
[INFO] [stdout] afd5fe49358f3fa2974d9af21048ac12019a01ae2879e0f735cffc3133f91692