[INFO] fetching crate mime-plz 0.0.2...
[INFO] testing mime-plz-0.0.2 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate mime-plz 0.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate mime-plz 0.0.2
[INFO] finished tweaking crates.io crate mime-plz 0.0.2
[INFO] tweaked toml for crates.io crate mime-plz 0.0.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mime-plz 0.0.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mime-plz 0.0.2 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hermit-abi v0.5.0
[INFO] [stderr]   Downloaded is-terminal v0.4.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b
[INFO] running `Command { std: "docker" "start" "ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling mime-plz v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `mime-plz v0.0.2 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/build/mime-plz-5c2dbea941dc0cf4/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=./artifacts/db.json
[INFO] [stderr]   Building mime type database
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (308) panicked at build.rs:102:39:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x620ccbb2e671 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x620ccbb40b5a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x620ccbb320bc - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x620ccbb17be6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x620ccbb2a491 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x620ccbb2a64b - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x620ccbb17c92 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x620ccbb10b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x620ccbb184ad - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stderr]      9:     0x620ccbb4128c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stderr]     10:     0x620ccbb41062 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stderr]     11:     0x620ccbae5499 - build_script_build[a575411777b9326b]::write_file
[INFO] [stderr]     12:     0x620ccbae6a1d - build_script_build[a575411777b9326b]::main
[INFO] [stderr]     13:     0x620ccbaedee3 - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     14:     0x620ccbaea7a6 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     15:     0x620ccbae4ff9 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     16:     0x620ccbb29bf9 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     17:     0x620ccbae2821 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stderr]     18:     0x620ccbae9895 - main
[INFO] [stderr]     19:     0x71b55eb5a601 - <unknown>
[INFO] [stderr]     20:     0x71b55eb5a718 - __libc_start_main
[INFO] [stderr]     21:     0x620ccbae1245 - _start
[INFO] [stderr]     22:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b", kill_on_drop: false }`
[INFO] [stdout] ab2a21f485092305edd2cce77558f2ebb3d94d14336a62b6bd88039cc51b934b
