[INFO] cloning repository https://github.com/jrdurandt/ingot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrdurandt/ingot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrdurandt%2Fingot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrdurandt%2Fingot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76b27dfcf1de364002766b9903fae1dbc0fe8ddc
[INFO] checking jrdurandt/ingot against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrdurandt%2Fingot" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrdurandt/ingot on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jrdurandt/ingot
[INFO] finished tweaking git repo https://github.com/jrdurandt/ingot
[INFO] tweaked toml for git repo https://github.com/jrdurandt/ingot written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jrdurandt/ingot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f71dae3126420ac1d866a3e439a07348dd44bac0f0c3062f87e8f8fb6a744d2a
[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" "f71dae3126420ac1d866a3e439a07348dd44bac0f0c3062f87e8f8fb6a744d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f71dae3126420ac1d866a3e439a07348dd44bac0f0c3062f87e8f8fb6a744d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f71dae3126420ac1d866a3e439a07348dd44bac0f0c3062f87e8f8fb6a744d2a", kill_on_drop: false }`
[INFO] [stdout] f71dae3126420ac1d866a3e439a07348dd44bac0f0c3062f87e8f8fb6a744d2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abb4e2d3f8399df51851925c23c32047f48a9504f6700adda34f062f24c29b7b
[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" "abb4e2d3f8399df51851925c23c32047f48a9504f6700adda34f062f24c29b7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking libloading v0.6.3
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling ingot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr] error: failed to run custom build command for `ingot v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/ingot-a3869211ca7c2efb/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:11:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5580fa69c107 - std::backtrace_rs::backtrace::libunwind::trace::h8bc78f7bc1f75bdb
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5580fa69c107 - std::backtrace_rs::backtrace::trace_unsynchronized::ha4c961c9576f95ba
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5580fa69c107 - std::sys_common::backtrace::_print_fmt::hc20cfdc233d6eb02
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5580fa69c107 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h04bea14549780a0f
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5580fa6b331c - core::fmt::write::h3868db8542c90941
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]      5:     0x5580fa69a382 - std::io::Write::write_fmt::h55dd75636eef6a5c
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/io/mod.rs:1518:15
[INFO] [stderr]      6:     0x5580fa69de35 - std::sys_common::backtrace::_print::h6439e8525077c7da
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5580fa69de35 - std::sys_common::backtrace::print::h02b685f728ce3931
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5580fa69de35 - std::panicking::default_hook::{{closure}}::h7c29625065fafae1
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5580fa69d993 - std::panicking::default_hook::hba441710bb71f4d5
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5580fa69e5d1 - std::panicking::rust_panic_with_hook::ha936eb00e51bc4d9
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5580fa69e117 - std::panicking::begin_panic_handler::{{closure}}::hcd15140e0238536e
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5580fa69c5cc - std::sys_common::backtrace::__rust_end_short_backtrace::hb13a021bb64823a1
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5580fa69e079 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x5580fa6b26f1 - core::panicking::panic_fmt::h20225113c4a2f8fd
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x5580fa6b2513 - core::option::expect_none_failed::hc6d6d4cea4fdc285
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/core/src/option.rs:1266:5
[INFO] [stderr]     16:     0x5580fa5dcf6b - core::result::Result<T,E>::unwrap::h5747756c6a71001e
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/core/src/result.rs:969:23
[INFO] [stderr]     17:     0x5580fa5fe845 - build_script_build::main::h5053a54219c0e4ba
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:10:23
[INFO] [stderr]     18:     0x5580fa5e112b - core::ops::function::FnOnce::call_once::h4627ba2175213c9b
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x5580fa5e081e - std::sys_common::backtrace::__rust_begin_short_backtrace::hf8cdcf08f1b0030b
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x5580fa5d9961 - std::rt::lang_start::{{closure}}::ha832ac494d1c6c1c
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x5580fa69e9f7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h7c92107c3c98a949
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5580fa69e9f7 - std::panicking::try::do_call::h7454c57e8fbf0cc1
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x5580fa69e9f7 - std::panicking::try::he71cdc15ed83b5ec
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x5580fa69e9f7 - std::panic::catch_unwind::hfc08ddb043e6e18c
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/panic.rs:396:14
[INFO] [stderr]     25:     0x5580fa69e9f7 - std::rt::lang_start_internal::he4958117ec6901fd
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x5580fa5d9937 - std::rt::lang_start::h3add0e1e6fec36e1
[INFO] [stderr]                                  at /rustc/bb9dbf1d07454a99066eabaabd5819851281494b/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x5580fa5fe99a - main
[INFO] [stderr]     28:     0x7f424f2e40b3 - __libc_start_main
[INFO] [stderr]     29:     0x5580fa5c10ae - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "abb4e2d3f8399df51851925c23c32047f48a9504f6700adda34f062f24c29b7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb4e2d3f8399df51851925c23c32047f48a9504f6700adda34f062f24c29b7b", kill_on_drop: false }`
[INFO] [stdout] abb4e2d3f8399df51851925c23c32047f48a9504f6700adda34f062f24c29b7b