[INFO] cloning repository https://github.com/ogham/checkback
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ogham/checkback" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogham%2Fcheckback", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogham%2Fcheckback'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6899390eb025b4cbe46ac722b390b53dff47a97b
[INFO] checking ogham/checkback against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogham%2Fcheckback" "/workspace/builds/worker-79/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ogham/checkback on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ogham/checkback
[INFO] finished tweaking git repo https://github.com/ogham/checkback
[INFO] tweaked toml for git repo https://github.com/ogham/checkback written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] crate git repo https://github.com/ogham/checkback already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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 adler32 v1.0.2
[INFO] [stderr]   Downloaded rayon v0.9.0
[INFO] [stderr]   Downloaded os_type v2.0.0
[INFO] [stderr]   Downloaded crc v1.8.1
[INFO] [stderr]   Downloaded backtrace v0.3.8
[INFO] [stderr]   Downloaded quote v0.6.2
[INFO] [stderr]   Downloaded mime_guess v2.0.0-alpha.4
[INFO] [stderr]   Downloaded openssl-sys v0.9.31
[INFO] [stderr]   Downloaded vcpkg v0.2.3
[INFO] [stderr]   Downloaded build_const v0.2.1
[INFO] [stderr]   Downloaded quicli v0.2.0
[INFO] [stderr]   Downloaded mime v0.3.7
[INFO] [stderr]   Downloaded schannel v0.1.12
[INFO] [stderr]   Downloaded serde_json v1.0.18
[INFO] [stderr]   Downloaded regex v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v0.4.3
[INFO] [stderr]   Downloaded structopt v0.2.8
[INFO] [stderr]   Downloaded pad v0.1.5
[INFO] [stderr]   Downloaded syn v0.14.0
[INFO] [stderr]   Downloaded serde v1.0.62
[INFO] [stderr]   Downloaded clap v2.31.2
[INFO] [stderr]   Downloaded iso8601 v0.1.1
[INFO] [stderr]   Downloaded serde_derive v1.0.62
[INFO] [stderr]   Downloaded reqwest v0.8.5
[INFO] [stderr]   Downloaded encoding_rs v0.7.2
[INFO] [stderr]   Downloaded libflate v0.1.14
[INFO] [stderr]   Downloaded datetime v0.4.7
[INFO] [stderr]   Downloaded human-panic v0.4.0
[INFO] [stderr]   Downloaded structopt-derive v0.2.8
[INFO] [stderr]   Downloaded base64 v0.9.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc98f6821407b26758b107660e51a59de15b87e3358c4dcab82db33859900f57
[INFO] running `Command { std: "docker" "start" "-a" "fc98f6821407b26758b107660e51a59de15b87e3358c4dcab82db33859900f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc98f6821407b26758b107660e51a59de15b87e3358c4dcab82db33859900f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc98f6821407b26758b107660e51a59de15b87e3358c4dcab82db33859900f57", kill_on_drop: false }`
[INFO] [stdout] fc98f6821407b26758b107660e51a59de15b87e3358c4dcab82db33859900f57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2727341308a362820fe6d79d1d30065608391cefd18b058a139d65b644af5bcc
[INFO] running `Command { std: "docker" "start" "-a" "2727341308a362820fe6d79d1d30065608391cefd18b058a139d65b644af5bcc", 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]     Checking libc v0.2.41
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling serde v1.0.62
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking try-lock v0.1.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking base64 v0.9.1
[INFO] [stderr]    Compiling quote v0.6.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking locale v0.2.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking pad v0.1.5
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr] error: could not compile `encoding_rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name encoding_rs /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/encoding_rs-0.7.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=4bc1cbd873eec716 -C extra-filename=-4bc1cbd873eec716 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-645f161f60642685.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2727341308a362820fe6d79d1d30065608391cefd18b058a139d65b644af5bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2727341308a362820fe6d79d1d30065608391cefd18b058a139d65b644af5bcc", kill_on_drop: false }`
[INFO] [stdout] 2727341308a362820fe6d79d1d30065608391cefd18b058a139d65b644af5bcc