[INFO] fetching crate markerml_backend 0.1.2...
[INFO] testing markerml_backend-0.1.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate markerml_backend 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate markerml_backend 0.1.2
[INFO] finished tweaking crates.io crate markerml_backend 0.1.2
[INFO] tweaked toml for crates.io crate markerml_backend 0.1.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate markerml_backend 0.1.2 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.13.0 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b8ee7cb37200505e0ccfa127b0b4aeeb69668b2c7e6d9d6fd30153d1dff5ee3
[INFO] running `Command { std: "docker" "start" "-a" "1b8ee7cb37200505e0ccfa127b0b4aeeb69668b2c7e6d9d6fd30153d1dff5ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b8ee7cb37200505e0ccfa127b0b4aeeb69668b2c7e6d9d6fd30153d1dff5ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b8ee7cb37200505e0ccfa127b0b4aeeb69668b2c7e6d9d6fd30153d1dff5ee3", kill_on_drop: false }`
[INFO] [stdout] 1b8ee7cb37200505e0ccfa127b0b4aeeb69668b2c7e6d9d6fd30153d1dff5ee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d1ee71111fe40ca57dae5de04fa4758c011bd086713be0d22367b6beb8fb07d
[INFO] running `Command { std: "docker" "start" "-a" "1d1ee71111fe40ca57dae5de04fa4758c011bd086713be0d22367b6beb8fb07d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]    Compiling is_ci v1.2.0
[INFO] [stderr]    Compiling supports-unicode v3.0.0
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling supports-hyperlinks v3.1.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling build_html v2.7.0
[INFO] [stderr]    Compiling supports-color v3.0.2
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling backtrace-ext v0.2.1
[INFO] [stderr]    Compiling terminal_size v0.4.3
[INFO] [stderr]    Compiling pest_meta v2.8.3
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling miette-derive v7.6.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling pest_derive v2.8.3
[INFO] [stderr]    Compiling miette v7.6.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling markerml_frontend v0.1.4
[INFO] [stderr]    Compiling markerml_middleend v0.1.2
[INFO] [stderr]    Compiling markerml_backend v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]   --> src/error.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `expected` is never read
[INFO] [stdout]   --> src/error.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub expected: &'static str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `got` is never read
[INFO] [stdout]   --> src/error.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub got: &'static str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.92s
[INFO] running `Command { std: "docker" "inspect" "1d1ee71111fe40ca57dae5de04fa4758c011bd086713be0d22367b6beb8fb07d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d1ee71111fe40ca57dae5de04fa4758c011bd086713be0d22367b6beb8fb07d", kill_on_drop: false }`
[INFO] [stdout] 1d1ee71111fe40ca57dae5de04fa4758c011bd086713be0d22367b6beb8fb07d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b8afba68a5e50a2894114b1a1c833f10f6dc20c658cf8deca6cdb97447e4604
[INFO] running `Command { std: "docker" "start" "-a" "6b8afba68a5e50a2894114b1a1c833f10f6dc20c658cf8deca6cdb97447e4604", kill_on_drop: false }`
[INFO] [stderr]    Compiling markerml_backend v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]   --> src/error.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `expected` is never read
[INFO] [stdout]   --> src/error.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub expected: &'static str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `got` is never read
[INFO] [stdout]   --> src/error.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub got: &'static str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]   --> src/error.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `expected` is never read
[INFO] [stdout]   --> src/error.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub expected: &'static str,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `got` is never read
[INFO] [stdout]   --> src/error.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub got: &'static str,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> src/error.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "6b8afba68a5e50a2894114b1a1c833f10f6dc20c658cf8deca6cdb97447e4604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b8afba68a5e50a2894114b1a1c833f10f6dc20c658cf8deca6cdb97447e4604", kill_on_drop: false }`
[INFO] [stdout] 6b8afba68a5e50a2894114b1a1c833f10f6dc20c658cf8deca6cdb97447e4604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 349f5c790b37e05f09a711d32cf5d437f0b34bab98bf83d98badcb99d5266cb0
[INFO] running `Command { std: "docker" "start" "-a" "349f5c790b37e05f09a711d32cf5d437f0b34bab98bf83d98badcb99d5266cb0", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]   --> src/error.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub name: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `span` is never read
[INFO] [stderr]   --> src/error.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub span: Span,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `span` is never read
[INFO] [stderr]   --> src/error.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub span: Span,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `expected` is never read
[INFO] [stderr]   --> src/error.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub expected: &'static str,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `got` is never read
[INFO] [stderr]   --> src/error.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub got: &'static str,
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `span` is never read
[INFO] [stderr]   --> src/error.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub span: Span,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `markerml_backend` (lib) generated 6 warnings
[INFO] [stderr] warning: `markerml_backend` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/markerml_backend-8e6c8b5c59d93558)
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests markerml_backend
[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" "349f5c790b37e05f09a711d32cf5d437f0b34bab98bf83d98badcb99d5266cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349f5c790b37e05f09a711d32cf5d437f0b34bab98bf83d98badcb99d5266cb0", kill_on_drop: false }`
[INFO] [stdout] 349f5c790b37e05f09a711d32cf5d437f0b34bab98bf83d98badcb99d5266cb0
