[INFO] fetching crate mr_cat 0.1.0...
[INFO] testing mr_cat-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mr_cat 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mr_cat 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mr_cat 0.1.0
[INFO] tweaked toml for crates.io crate mr_cat 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mr_cat 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mr_cat 0.1.0 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e22029d3416d9f20f03937680c7bda42d6ca1c9fcb13dd8e7a087250a5ff8df
[INFO] running `Command { std: "docker" "start" "-a" "6e22029d3416d9f20f03937680c7bda42d6ca1c9fcb13dd8e7a087250a5ff8df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e22029d3416d9f20f03937680c7bda42d6ca1c9fcb13dd8e7a087250a5ff8df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e22029d3416d9f20f03937680c7bda42d6ca1c9fcb13dd8e7a087250a5ff8df", kill_on_drop: false }`
[INFO] [stdout] 6e22029d3416d9f20f03937680c7bda42d6ca1c9fcb13dd8e7a087250a5ff8df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 322e43771ea7e951940b0bfe79d71dbf6f0d7fa436587b214fe58a4ea7cdadbc
[INFO] running `Command { std: "docker" "start" "-a" "322e43771ea7e951940b0bfe79d71dbf6f0d7fa436587b214fe58a4ea7cdadbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling predicates-core v1.0.9
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.25
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling termtree v0.5.1
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling predicates-tree v1.0.12
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling predicates v3.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling backtrace v0.3.75
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling exitfailure v0.5.1
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling predicates v1.0.8
[INFO] [stderr]    Compiling mr_cat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.57s
[INFO] running `Command { std: "docker" "inspect" "322e43771ea7e951940b0bfe79d71dbf6f0d7fa436587b214fe58a4ea7cdadbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "322e43771ea7e951940b0bfe79d71dbf6f0d7fa436587b214fe58a4ea7cdadbc", kill_on_drop: false }`
[INFO] [stdout] 322e43771ea7e951940b0bfe79d71dbf6f0d7fa436587b214fe58a4ea7cdadbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31d5236acc33fcbd662627a6d61f3f4ec794d0dc8be3c49e2caaa14d1ebd689d
[INFO] running `Command { std: "docker" "start" "-a" "31d5236acc33fcbd662627a6d61f3f4ec794d0dc8be3c49e2caaa14d1ebd689d", kill_on_drop: false }`
[INFO] [stderr]    Compiling mr_cat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io::stdout`
[INFO] [stdout]  --> tests/integration_tests.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{io::stdout, process::Command};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "31d5236acc33fcbd662627a6d61f3f4ec794d0dc8be3c49e2caaa14d1ebd689d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d5236acc33fcbd662627a6d61f3f4ec794d0dc8be3c49e2caaa14d1ebd689d", kill_on_drop: false }`
[INFO] [stdout] 31d5236acc33fcbd662627a6d61f3f4ec794d0dc8be3c49e2caaa14d1ebd689d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 333f2195abc7a91d6e2873b2870b4ddad01d8fc8399b4f631cb9c4504bf8ba03
[INFO] running `Command { std: "docker" "start" "-a" "333f2195abc7a91d6e2873b2870b4ddad01d8fc8399b4f631cb9c4504bf8ba03", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `io::stdout`
[INFO] [stderr]  --> tests/integration_tests.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{io::stdout, process::Command};
[INFO] [stderr]   |           ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mr_cat` (test "integration_tests") generated 1 warning (run `cargo fix --test "integration_tests" -p mr_cat` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mr_cat-1518300a925a0b95)
[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]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-f5e9fdb1edace538)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test run_with_defaults ... ok
[INFO] [stdout] test fail_on_non_existing_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "333f2195abc7a91d6e2873b2870b4ddad01d8fc8399b4f631cb9c4504bf8ba03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333f2195abc7a91d6e2873b2870b4ddad01d8fc8399b4f631cb9c4504bf8ba03", kill_on_drop: false }`
[INFO] [stdout] 333f2195abc7a91d6e2873b2870b4ddad01d8fc8399b4f631cb9c4504bf8ba03