[INFO] fetching crate mastodon-api-models 0.1.0...
[INFO] checking mastodon-api-models-0.1.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate mastodon-api-models 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mastodon-api-models 0.1.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mastodon-api-models 0.1.0
[INFO] finished tweaking crates.io crate mastodon-api-models 0.1.0
[INFO] tweaked toml for crates.io crate mastodon-api-models 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1d2d9ce7fb0a6ffce706855596848e90b15436d0c71f5a6e2d8594554de11a8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a1d2d9ce7fb0a6ffce706855596848e90b15436d0c71f5a6e2d8594554de11a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1d2d9ce7fb0a6ffce706855596848e90b15436d0c71f5a6e2d8594554de11a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d2d9ce7fb0a6ffce706855596848e90b15436d0c71f5a6e2d8594554de11a8", kill_on_drop: false }`
[INFO] [stdout] a1d2d9ce7fb0a6ffce706855596848e90b15436d0c71f5a6e2d8594554de11a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a5b247f4ef1d06e64fa54e4634e7a0f85451b25209c057fb196871e8fd69048
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8a5b247f4ef1d06e64fa54e4634e7a0f85451b25209c057fb196871e8fd69048", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling isolang v1.0.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling derive-getters v0.1.1
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling fehler v1.0.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling mastodon-api-models v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `mastodon-api-models v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mastodon-api-models-3d5dbc59186d2dfe/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: trying to open to_file
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]       Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr]   Stack backtrace:
[INFO] [stderr]      0: <E as anyhow::context::ext::StdError>::ext_context
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.42/src/context.rs:27:29
[INFO] [stderr]      1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context::{{closure}}
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.42/src/context.rs:58:30
[INFO] [stderr]      2: core::result::Result<T,E>::map_err
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/result.rs:835:27
[INFO] [stderr]      3: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.42/src/context.rs:58:9
[INFO] [stderr]      4: build_script_build::main
[INFO] [stderr]                at ./build.rs:30:27
[INFO] [stderr]      5: core::ops::function::FnOnce::call_once
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/ops/function.rs:227:5
[INFO] [stderr]      6: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]      7: std::rt::lang_start::{{closure}}
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:63:18
[INFO] [stderr]      8: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/ops/function.rs:259:13
[INFO] [stderr]      9: std::panicking::try::do_call
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:401:40
[INFO] [stderr]     10: std::panicking::try
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:365:19
[INFO] [stderr]     11: std::panic::catch_unwind
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panic.rs:434:14
[INFO] [stderr]     12: std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:45:48
[INFO] [stderr]     13: std::panicking::try::do_call
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:401:40
[INFO] [stderr]     14: std::panicking::try
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:365:19
[INFO] [stderr]     15: std::panic::catch_unwind
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panic.rs:434:14
[INFO] [stderr]     16: std::rt::lang_start_internal
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:45:20
[INFO] [stderr]     17: std::rt::lang_start
[INFO] [stderr]                at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:62:5
[INFO] [stderr]     18: main
[INFO] [stderr]     19: __libc_start_main
[INFO] [stderr]     20: _start
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8a5b247f4ef1d06e64fa54e4634e7a0f85451b25209c057fb196871e8fd69048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a5b247f4ef1d06e64fa54e4634e7a0f85451b25209c057fb196871e8fd69048", kill_on_drop: false }`
[INFO] [stdout] 8a5b247f4ef1d06e64fa54e4634e7a0f85451b25209c057fb196871e8fd69048