[INFO] cloning repository https://github.com/sebglazebrook/calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sebglazebrook/calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Fcalculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Fcalculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7cec4723e238c1eee2f6349b18d7deaf02073ed
[INFO] checking sebglazebrook/calculator against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebglazebrook%2Fcalculator" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebglazebrook/calculator on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sebglazebrook/calculator
[INFO] finished tweaking git repo https://github.com/sebglazebrook/calculator
[INFO] tweaked toml for git repo https://github.com/sebglazebrook/calculator written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sebglazebrook/calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dbeabb3930453a0cf71c39db2da3493b22c7f4f5636de5200d161b61e695c9bf
[INFO] running `Command { std: "docker" "start" "-a" "dbeabb3930453a0cf71c39db2da3493b22c7f4f5636de5200d161b61e695c9bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbeabb3930453a0cf71c39db2da3493b22c7f4f5636de5200d161b61e695c9bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbeabb3930453a0cf71c39db2da3493b22c7f4f5636de5200d161b61e695c9bf", kill_on_drop: false }`
[INFO] [stdout] dbeabb3930453a0cf71c39db2da3493b22c7f4f5636de5200d161b61e695c9bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4197138771e8fee137c21b47d0e44ccb7e30caec62560fa0d835f245ed853c5
[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" "c4197138771e8fee137c21b47d0e44ccb7e30caec62560fa0d835f245ed853c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]    Compiling vergen v0.1.1
[INFO] [stderr]    Compiling rl-sys v0.5.2
[INFO] [stderr] error: failed to run custom build command for `rl-sys v0.5.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rl-sys-28e3615cf8496082/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   ./configure: line 1884: config.log: Read-only file system
[INFO] [stderr]   ./configure: line 1894: config.log: Read-only file system
[INFO] [stderr]   thread 'main' panicked at 'assertion failed: cmd.stdout(Stdio::inherit()).stderr(Stdio::inherit()).status().unwrap().success()', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rl-sys-0.5.2/build.rs:73:5
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x563795a0beb7 - std::backtrace_rs::backtrace::libunwind::trace::h8bc78f7bc1f75bdb
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x563795a0beb7 - std::backtrace_rs::backtrace::trace_unsynchronized::ha4c961c9576f95ba
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x563795a0beb7 - std::sys_common::backtrace::_print_fmt::hc20cfdc233d6eb02
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x563795a0beb7 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h04bea14549780a0f
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x563795a27b5c - core::fmt::write::h3868db8542c90941
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/core/src/fmt/mod.rs:1096:17
[INFO] [stderr]      5:     0x563795a08842 - std::io::Write::write_fmt::h55dd75636eef6a5c
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/io/mod.rs:1568:15
[INFO] [stderr]      6:     0x563795a0dd25 - std::sys_common::backtrace::_print::h6439e8525077c7da
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x563795a0dd25 - std::sys_common::backtrace::print::h02b685f728ce3931
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x563795a0dd25 - std::panicking::default_hook::{{closure}}::h7c29625065fafae1
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x563795a0d883 - std::panicking::default_hook::hba441710bb71f4d5
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x563795a0e4c1 - std::panicking::rust_panic_with_hook::ha936eb00e51bc4d9
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x563795a0dfd7 - std::panicking::begin_panic_handler::{{closure}}::hcd15140e0238536e
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panicking.rs:495:13
[INFO] [stderr]     12:     0x563795a0c37c - std::sys_common::backtrace::__rust_end_short_backtrace::hb13a021bb64823a1
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x563795a0df69 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x563795a26f31 - core::panicking::panic_fmt::h20225113c4a2f8fd
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x563795a26e7d - core::panicking::panic::h35b77276aa4b0c12
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/core/src/panicking.rs:50:5
[INFO] [stderr]     16:     0x5637959b9ca7 - build_script_build::run::h73bf8558ba154494
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rl-sys-0.5.2/build.rs:73:5
[INFO] [stderr]     17:     0x5637959b97bb - build_script_build::build_readline::h18e4c59b5db09c82
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rl-sys-0.5.2/build.rs:60:9
[INFO] [stderr]     18:     0x5637959b9340 - build_script_build::main::h38cd107eca1eb2a3
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rl-sys-0.5.2/build.rs:41:13
[INFO] [stderr]     19:     0x5637959ba2db - core::ops::function::FnOnce::call_once::h48f8ecb8837feaf4
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x5637959b9f8e - std::sys_common::backtrace::__rust_begin_short_backtrace::h6541362dc447d89e
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x5637959ba4c1 - std::rt::lang_start::{{closure}}::hf4b859f71d0a2553
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/rt.rs:66:18
[INFO] [stderr]     22:     0x563795a0e8e7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h7c92107c3c98a949
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x563795a0e8e7 - std::panicking::try::do_call::h7454c57e8fbf0cc1
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panicking.rs:379:40
[INFO] [stderr]     24:     0x563795a0e8e7 - std::panicking::try::he71cdc15ed83b5ec
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panicking.rs:343:19
[INFO] [stderr]     25:     0x563795a0e8e7 - std::panic::catch_unwind::hfc08ddb043e6e18c
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/panic.rs:396:14
[INFO] [stderr]     26:     0x563795a0e8e7 - std::rt::lang_start_internal::he4958117ec6901fd
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/rt.rs:51:25
[INFO] [stderr]     27:     0x5637959ba497 - std::rt::lang_start::h93c1ab1eb6103eab
[INFO] [stderr]                                  at /rustc/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/library/std/src/rt.rs:65:5
[INFO] [stderr]     28:     0x5637959b9cda - main
[INFO] [stderr]     29:     0x7fb9f28050b3 - __libc_start_main
[INFO] [stderr]     30:     0x5637959b90be - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c4197138771e8fee137c21b47d0e44ccb7e30caec62560fa0d835f245ed853c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4197138771e8fee137c21b47d0e44ccb7e30caec62560fa0d835f245ed853c5", kill_on_drop: false }`
[INFO] [stdout] c4197138771e8fee137c21b47d0e44ccb7e30caec62560fa0d835f245ed853c5