[INFO] fetching crate readr 0.1.0...
[INFO] testing readr-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate readr 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate readr 0.1.0
[INFO] finished tweaking crates.io crate readr 0.1.0
[INFO] tweaked toml for crates.io crate readr 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate readr 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate readr 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e47fa24d637002a81ad867bfb4115577c5ed3d04d14184a727be06211ae73d6
[INFO] running `Command { std: "docker" "start" "-a" "6e47fa24d637002a81ad867bfb4115577c5ed3d04d14184a727be06211ae73d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e47fa24d637002a81ad867bfb4115577c5ed3d04d14184a727be06211ae73d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e47fa24d637002a81ad867bfb4115577c5ed3d04d14184a727be06211ae73d6", kill_on_drop: false }`
[INFO] [stdout] 6e47fa24d637002a81ad867bfb4115577c5ed3d04d14184a727be06211ae73d6
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e9dbb3f33f920ffe58a42cf64bf9645c334c1745ca969d68517d0b18744e945
[INFO] running `Command { std: "docker" "start" "-a" "4e9dbb3f33f920ffe58a42cf64bf9645c334c1745ca969d68517d0b18744e945", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling shlex v1.3.0
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[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling bytes v1.10.0
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[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling bitflags v2.8.0
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[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
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[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
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[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
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[INFO] [stderr]    Compiling futures-util v0.3.31
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[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]    Compiling mio v1.0.3
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[INFO] [stderr]    Compiling openssl-src v300.4.2+3.4.1
[INFO] [stderr]    Compiling semver v1.0.25
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling camino v1.1.9
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling winnow v0.7.3
[INFO] [stderr]    Compiling either v1.14.0
[INFO] [stderr]    Compiling rustls-native-certs v0.8.1
[INFO] [stderr]    Compiling ring v0.17.11
[INFO] [stderr]    Compiling libz-sys v1.1.21
[INFO] [stderr]    Compiling openssl-sys v0.9.106
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling libgit2-sys v0.17.0+1.8.1
[INFO] [stderr]    Compiling flate2 v1.1.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling terminal_size v0.4.1
[INFO] [stderr]    Compiling webpki-roots v0.26.8
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling tempfile v3.17.1
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling clap_builder v4.5.31
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling snapbox-macros v0.3.10
[INFO] [stderr]    Compiling os_pipe v1.2.1
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
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[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling yoke v0.7.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling zerovec v0.10.4
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling bstr v1.11.3
[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling rustls-webpki v0.102.8
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling clap_derive v4.5.28
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling content_inspector v0.2.4
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling anyhow v1.0.96
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling snapbox v0.6.21
[INFO] [stderr]    Compiling time-macros v0.2.19
[INFO] [stderr]    Compiling clap v4.5.31
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling tokio-util v0.7.13
[INFO] [stderr]    Compiling h2 v0.4.8
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling tokio-rustls v0.26.1
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling toml_edit v0.22.24
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling async-compression v0.4.20
[INFO] [stderr]    Compiling cargo-platform v0.1.9
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling cargo_metadata v0.19.1
[INFO] [stderr]    Compiling smol_str v0.3.2
[INFO] [stderr]    Compiling humantime-serde v1.1.1
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling globset v0.4.16
[INFO] [stderr]    Compiling automod v1.0.14
[INFO] [stderr]    Compiling hyper v1.6.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling toml-span v0.3.0
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling twox-hash v2.1.0
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling git-conventional v0.12.9
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling trycmd v0.15.9
[INFO] [stderr]    Compiling hyper-util v0.1.10
[INFO] [stderr]    Compiling toml v0.8.20
[INFO] [stderr]    Compiling clap-cargo v0.15.2
[INFO] [stderr]    Compiling ignore v0.4.23
[INFO] [stderr]    Compiling env_logger v0.11.6
[INFO] [stderr]    Compiling hyper-rustls v0.27.5
[INFO] [stderr]    Compiling time v0.3.37
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling reqwest v0.12.12
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling tame-index v0.16.0
[INFO] [stderr]    Compiling git2 v0.19.0
[INFO] [stderr]    Compiling cargo-release v0.25.17
[INFO] [stderr]    Compiling readr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6m 56s
[INFO] running `Command { std: "docker" "inspect" "4e9dbb3f33f920ffe58a42cf64bf9645c334c1745ca969d68517d0b18744e945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e9dbb3f33f920ffe58a42cf64bf9645c334c1745ca969d68517d0b18744e945", kill_on_drop: false }`
[INFO] [stdout] 4e9dbb3f33f920ffe58a42cf64bf9645c334c1745ca969d68517d0b18744e945
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0178734c39a0c42d350df7515b52fa4484ae78334aa4693370af5ee4d8aba07b
[INFO] running `Command { std: "docker" "start" "-a" "0178734c39a0c42d350df7515b52fa4484ae78334aa4693370af5ee4d8aba07b", kill_on_drop: false }`
[INFO] [stderr]    Compiling readr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "0178734c39a0c42d350df7515b52fa4484ae78334aa4693370af5ee4d8aba07b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0178734c39a0c42d350df7515b52fa4484ae78334aa4693370af5ee4d8aba07b", kill_on_drop: false }`
[INFO] [stdout] 0178734c39a0c42d350df7515b52fa4484ae78334aa4693370af5ee4d8aba07b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 292321853f4c188f44b2854850c0a5e60069ea86118afa715f42df181f182a66
[INFO] running `Command { std: "docker" "start" "-a" "292321853f4c188f44b2854850c0a5e60069ea86118afa715f42df181f182a66", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/readr-9c7173fd314f83cd)
[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" "292321853f4c188f44b2854850c0a5e60069ea86118afa715f42df181f182a66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "292321853f4c188f44b2854850c0a5e60069ea86118afa715f42df181f182a66", kill_on_drop: false }`
[INFO] [stdout] 292321853f4c188f44b2854850c0a5e60069ea86118afa715f42df181f182a66