[INFO] cloning repository https://github.com/tangmi/really-small-font
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tangmi/really-small-font" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangmi%2Freally-small-font", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangmi%2Freally-small-font'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eabef5a815fedb41cc6cf3c3ba131822615ac240
[INFO] checking tangmi/really-small-font against master#9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9 for pr-124108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangmi%2Freally-small-font" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tangmi/really-small-font on toolchain 9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tangmi/really-small-font
[INFO] finished tweaking git repo https://github.com/tangmi/really-small-font
[INFO] tweaked toml for git repo https://github.com/tangmi/really-small-font written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tangmi/really-small-font 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" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking tangmi/really-small-font against try#2e5b7739e5167b731ad5eb628f04a54f932f1fe2 for pr-124108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangmi%2Freally-small-font" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tangmi/really-small-font on toolchain 2e5b7739e5167b731ad5eb628f04a54f932f1fe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tangmi/really-small-font
[INFO] finished tweaking git repo https://github.com/tangmi/really-small-font
[INFO] tweaked toml for git repo https://github.com/tangmi/really-small-font written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tangmi/really-small-font 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" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking tangmi/really-small-font against try#2e5b7739e5167b731ad5eb628f04a54f932f1fe2 for pr-124108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangmi%2Freally-small-font" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tangmi/really-small-font on toolchain 2e5b7739e5167b731ad5eb628f04a54f932f1fe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tangmi/really-small-font
[INFO] finished tweaking git repo https://github.com/tangmi/really-small-font
[INFO] tweaked toml for git repo https://github.com/tangmi/really-small-font written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tangmi/really-small-font 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" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_approx_eq v1.1.0
[INFO] [stderr]   Downloaded anyhow v1.0.45
[INFO] [stderr]   Downloaded az v1.1.2
[INFO] [stderr]   Downloaded bitmap-font v0.2.1
[INFO] [stderr]   Downloaded libc v0.2.106
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 346e4a9db9de6c23a0df298a5c53e2aa9dbfeec7a44cc202c74fd2038f297e44
[INFO] running `Command { std: "docker" "start" "-a" "346e4a9db9de6c23a0df298a5c53e2aa9dbfeec7a44cc202c74fd2038f297e44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "346e4a9db9de6c23a0df298a5c53e2aa9dbfeec7a44cc202c74fd2038f297e44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "346e4a9db9de6c23a0df298a5c53e2aa9dbfeec7a44cc202c74fd2038f297e44", kill_on_drop: false }`
[INFO] [stdout] 346e4a9db9de6c23a0df298a5c53e2aa9dbfeec7a44cc202c74fd2038f297e44
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f41dcc31150c5070d840056879caf3c6f47271779d9e5527e7bff55921a00439
[INFO] running `Command { std: "docker" "start" "-a" "f41dcc31150c5070d840056879caf3c6f47271779d9e5527e7bff55921a00439", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling az v1.1.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling micromath v1.1.1
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking embedded-graphics-core v0.3.3
[INFO] [stderr]    Compiling embedded-graphics v0.7.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking bitmap-font v0.2.1
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling really-small-font v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `really-small-font v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_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/debug/build/really-small-font-80cfe8ab529073ad/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:107:10:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: IoError(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x558f6e7fedc5 - std::backtrace_rs::backtrace::libunwind::trace::h26c7120587a28d7d
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x558f6e7fedc5 - std::backtrace_rs::backtrace::trace_unsynchronized::hb2343494a945db08
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x558f6e7fedc5 - std::sys_common::backtrace::_print_fmt::hc0886a1b0f1c6f51
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x558f6e7fedc5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc64bd596b4321e38
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x558f6e820deb - core::fmt::rt::Argument::fmt::ha5ff5a935f5992dd
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/core/src/fmt/rt.rs:165:63
[INFO] [stderr]      5:     0x558f6e820deb - core::fmt::write::h2d97ba29aea72b6f
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/core/src/fmt/mod.rs:1157:21
[INFO] [stderr]      6:     0x558f6e7fce6f - std::io::Write::write_fmt::had90bacb06020b8b
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/io/mod.rs:1832:15
[INFO] [stderr]      7:     0x558f6e7feb9e - std::sys_common::backtrace::_print::ha2734f6cecc4ee61
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x558f6e7feb9e - std::sys_common::backtrace::print::h61ec44d69abfcc29
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x558f6e7ffe59 - std::panicking::default_hook::{{closure}}::h160aced4b23d03b1
[INFO] [stderr]     10:     0x558f6e7ffb9d - std::panicking::default_hook::he81053507c244f8e
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:291:9
[INFO] [stderr]     11:     0x558f6e8002f3 - std::panicking::rust_panic_with_hook::hba649da8a8dace27
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:788:13
[INFO] [stderr]     12:     0x558f6e8001d4 - std::panicking::begin_panic_handler::{{closure}}::h9794aa21e85483d5
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x558f6e7ff289 - std::sys_common::backtrace::__rust_end_short_backtrace::h628dd5113618b8e0
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x558f6e7fff07 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x558f6e7260e3 - core::panicking::panic_fmt::hfaa8da33a772c81c
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x558f6e726616 - core::result::unwrap_failed::h799b360796ed3127
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/core/src/result.rs:1654:5
[INFO] [stderr]     17:     0x558f6e72e08a - build_script_build::main::h2382e97c6653cb91
[INFO] [stderr]     18:     0x558f6e72aef3 - core::ops::function::FnOnce::call_once::hf16b16b1433c8ef9
[INFO] [stderr]     19:     0x558f6e72ac26 - std::sys_common::backtrace::__rust_begin_short_backtrace::h97bb231e64a13907
[INFO] [stderr]     20:     0x558f6e72ac79 - std::rt::lang_start::{{closure}}::h93e84e59c2be9237
[INFO] [stderr]     21:     0x558f6e7fa606 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hcda4ef775aa5fa80
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     22:     0x558f6e7fa606 - std::panicking::try::do_call::h883ad463914f688d
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:552:40
[INFO] [stderr]     23:     0x558f6e7fa606 - std::panicking::try::hc1c3781267377466
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:516:19
[INFO] [stderr]     24:     0x558f6e7fa606 - std::panic::catch_unwind::h255eec52e5946db3
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panic.rs:149:14
[INFO] [stderr]     25:     0x558f6e7fa606 - std::rt::lang_start_internal::{{closure}}::h8ce1ba5c140c654e
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/rt.rs:141:48
[INFO] [stderr]     26:     0x558f6e7fa606 - std::panicking::try::do_call::h7c5bdc7942f48e72
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:552:40
[INFO] [stderr]     27:     0x558f6e7fa606 - std::panicking::try::h6343c59686cf08f8
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panicking.rs:516:19
[INFO] [stderr]     28:     0x558f6e7fa606 - std::panic::catch_unwind::hb36583df431eff34
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/panic.rs:149:14
[INFO] [stderr]     29:     0x558f6e7fa606 - std::rt::lang_start_internal::h0cd8a5549e62c7a3
[INFO] [stderr]                                  at /rustc/2e5b7739e5167b731ad5eb628f04a54f932f1fe2/library/std/src/rt.rs:141:20
[INFO] [stderr]     30:     0x558f6e72ac57 - std::rt::lang_start::h24f8435de2f54491
[INFO] [stderr]     31:     0x558f6e72fa65 - main
[INFO] [stderr]     32:     0x7f221d8e1d90 - <unknown>
[INFO] [stderr]     33:     0x7f221d8e1e40 - __libc_start_main
[INFO] [stderr]     34:     0x558f6e726a35 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "f41dcc31150c5070d840056879caf3c6f47271779d9e5527e7bff55921a00439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f41dcc31150c5070d840056879caf3c6f47271779d9e5527e7bff55921a00439", kill_on_drop: false }`
[INFO] [stdout] f41dcc31150c5070d840056879caf3c6f47271779d9e5527e7bff55921a00439