[INFO] fetching crate rfcp 2.0.0...
[INFO] testing rfcp-2.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rfcp 2.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rfcp 2.0.0
[INFO] finished tweaking crates.io crate rfcp 2.0.0
[INFO] tweaked toml for crates.io crate rfcp 2.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rfcp 2.0.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rfcp 2.0.0 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e18f083680166856b40dd4e2dbea35edc971715a2365499b5497d88dcebe56a2
[INFO] running `Command { std: "docker" "start" "-a" "e18f083680166856b40dd4e2dbea35edc971715a2365499b5497d88dcebe56a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e18f083680166856b40dd4e2dbea35edc971715a2365499b5497d88dcebe56a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18f083680166856b40dd4e2dbea35edc971715a2365499b5497d88dcebe56a2", kill_on_drop: false }`
[INFO] [stdout] e18f083680166856b40dd4e2dbea35edc971715a2365499b5497d88dcebe56a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e03461ed83611661b71b611ad65ba63ea365f63615a1bb9e1527f9ff84c1d0a
[INFO] running `Command { std: "docker" "start" "-a" "6e03461ed83611661b71b611ad65ba63ea365f63615a1bb9e1527f9ff84c1d0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling portable-atomic v1.4.3
[INFO] [stderr]    Compiling anstyle v1.0.2
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling anstream v0.5.0
[INFO] [stderr]    Compiling clap_builder v4.4.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling filetime v0.2.22
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling indicatif v0.17.6
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]    Compiling clap v4.4.2
[INFO] [stderr]    Compiling rfcp v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.56s
[INFO] running `Command { std: "docker" "inspect" "6e03461ed83611661b71b611ad65ba63ea365f63615a1bb9e1527f9ff84c1d0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e03461ed83611661b71b611ad65ba63ea365f63615a1bb9e1527f9ff84c1d0a", kill_on_drop: false }`
[INFO] [stdout] 6e03461ed83611661b71b611ad65ba63ea365f63615a1bb9e1527f9ff84c1d0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 260d6ddd71d018adcba757d4356f1b583520e5e6562ca92abeb1fbd4ea3e5c8b
[INFO] running `Command { std: "docker" "start" "-a" "260d6ddd71d018adcba757d4356f1b583520e5e6562ca92abeb1fbd4ea3e5c8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rfcp v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "260d6ddd71d018adcba757d4356f1b583520e5e6562ca92abeb1fbd4ea3e5c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "260d6ddd71d018adcba757d4356f1b583520e5e6562ca92abeb1fbd4ea3e5c8b", kill_on_drop: false }`
[INFO] [stdout] 260d6ddd71d018adcba757d4356f1b583520e5e6562ca92abeb1fbd4ea3e5c8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 503e213756892862b18d755ffbb24e625b5148c90bd61686900a401ff7f61270
[INFO] running `Command { std: "docker" "start" "-a" "503e213756892862b18d755ffbb24e625b5148c90bd61686900a401ff7f61270", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rfcp-2dbea8db5e489637)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rfcp-c1699cfb8b9dd336)
[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] [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 rfcp
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/io/mod.rs - io::FileWriter::write_random (line 115) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/io/mod.rs - io::FileWriter::write_random (line 115) stdout ----
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 |  * `root_folder` - The root folder where the file will be written
[INFO] [stdout]     |    ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 116 -  * `root_folder` - The root folder where the file will be written
[INFO] [stdout] 116 +  * 'root_folder` - The root folder where the file will be written
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:116:16
[INFO] [stdout]     |
[INFO] [stdout] 116 |  * `root_folder` - The root folder where the file will be written
[INFO] [stdout]     |                ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 116 -  * `root_folder` - The root folder where the file will be written
[INFO] [stdout] 116 +  * `root_folder' - The root folder where the file will be written
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 |  * `file_name` - The relative path to the root folder and name of the file to be written
[INFO] [stdout]     |    ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 117 -  * `file_name` - The relative path to the root folder and name of the file to be written
[INFO] [stdout] 117 +  * 'file_name` - The relative path to the root folder and name of the file to be written
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:117:14
[INFO] [stdout]     |
[INFO] [stdout] 117 |  * `file_name` - The relative path to the root folder and name of the file to be written
[INFO] [stdout]     |              ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 117 -  * `file_name` - The relative path to the root folder and name of the file to be written
[INFO] [stdout] 117 +  * `file_name' - The relative path to the root folder and name of the file to be written
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 |  * `offset` - The offset from where to start writing
[INFO] [stdout]     |    ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 118 -  * `offset` - The offset from where to start writing
[INFO] [stdout] 118 +  * 'offset` - The offset from where to start writing
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:118:11
[INFO] [stdout]     |
[INFO] [stdout] 118 |  * `offset` - The offset from where to start writing
[INFO] [stdout]     |           ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 118 -  * `offset` - The offset from where to start writing
[INFO] [stdout] 118 +  * `offset' - The offset from where to start writing
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 |  * `buf` - The buffer where the data will be written
[INFO] [stdout]     |    ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 119 -  * `buf` - The buffer where the data will be written
[INFO] [stdout] 119 +  * 'buf` - The buffer where the data will be written
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/io/mod.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 |  * `buf` - The buffer where the data will be written
[INFO] [stdout]     |        ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 119 -  * `buf` - The buffer where the data will be written
[INFO] [stdout] 119 +  * `buf' - The buffer where the data will be written
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: expected item, found `*`
[INFO] [stdout]    --> src/io/mod.rs:116:2
[INFO] [stdout]     |
[INFO] [stdout] 116 |  * `root_folder` - The root folder where the file will be written
[INFO] [stdout]     |  ^ expected item
[INFO] [stdout]     |
[INFO] [stdout]     = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/io/mod.rs - io::FileWriter::write_random (line 115)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "503e213756892862b18d755ffbb24e625b5148c90bd61686900a401ff7f61270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "503e213756892862b18d755ffbb24e625b5148c90bd61686900a401ff7f61270", kill_on_drop: false }`
[INFO] [stdout] 503e213756892862b18d755ffbb24e625b5148c90bd61686900a401ff7f61270
