[INFO] cloning repository https://github.com/comprakt/comprakt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/comprakt/comprakt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomprakt%2Fcomprakt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomprakt%2Fcomprakt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2315e85972e63ea327c4d115ffe623253b520440
[INFO] checking comprakt/comprakt against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomprakt%2Fcomprakt" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/comprakt/comprakt on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/comprakt/comprakt
[INFO] finished tweaking git repo https://github.com/comprakt/comprakt
[INFO] tweaked toml for git repo https://github.com/comprakt/comprakt written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/comprakt/comprakt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-0/source/compiler-cli/Cargo.toml: the cargo feature `default-run` has been stabilized in the 1.37 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-default-run-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3f1b4dda5ed3700874937a6ee151ddae49660b86e4b264edf9fdc37f5508871
[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" "d3f1b4dda5ed3700874937a6ee151ddae49660b86e4b264edf9fdc37f5508871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3f1b4dda5ed3700874937a6ee151ddae49660b86e4b264edf9fdc37f5508871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f1b4dda5ed3700874937a6ee151ddae49660b86e4b264edf9fdc37f5508871", kill_on_drop: false }`
[INFO] [stdout] d3f1b4dda5ed3700874937a6ee151ddae49660b86e4b264edf9fdc37f5508871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ce956c5626afe14cf7de4d91abbe17e779e1ac69afcd6969e79fd287ae54dad
[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" "7ce956c5626afe14cf7de4d91abbe17e779e1ac69afcd6969e79fd287ae54dad", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/compiler-cli/Cargo.toml: the cargo feature `default-run` has been stabilized in the 1.37 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-default-run-field for more information about using this feature.
[INFO] [stderr]    Compiling libc v0.2.45
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[INFO] [stderr]    Compiling thread_local v0.3.6
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[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]     Checking itertools v0.8.0
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[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]    Compiling rocket_codegen v0.4.0
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[INFO] [stderr]    Compiling clang-sys v0.26.3
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]    Compiling synom v0.11.3
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[INFO] [stderr]     Checking priority-queue v0.5.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking criterion-plot v0.2.5
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling time v0.1.41
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling const-cstr-fork v0.2.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking wait-timeout v0.1.5
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking streaming-stats v0.2.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling libc-extra v0.3.2
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking criterion-stats v0.2.5
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]    Compiling cexpr v0.3.3
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling mjrt-impl v0.1.0 (/opt/rustwide/workdir/mjrt-impl)
[INFO] [stderr]     Checking tempfile v3.0.5
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling mjrt v0.1.0 (/opt/rustwide/workdir/mjrt)
[INFO] [stderr]     Checking gcollections v1.4.0
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking intervallum v1.3.0
[INFO] [stderr]     Checking integration_test_codegen v0.0.1 (/opt/rustwide/workdir/codegen-integration-tests)
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]     Checking handlebars v0.32.4
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling strum_macros v0.11.0
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling strum_macros v0.12.0
[INFO] [stderr]    Compiling devise_codegen v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking asciifile v0.1.0 (/opt/rustwide/workdir/asciifile)
[INFO] [stderr]     Checking strtab v0.1.0 (/opt/rustwide/workdir/strtab)
[INFO] [stdout] error[E0425]: cannot find value `tail` in this scope
[INFO] [stdout]    --> asciifile/src/span.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |             [head, tail..] => {
[INFO] [stdout]     |                    ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `tail` in this scope
[INFO] [stdout]    --> asciifile/src/span.rs:200:33
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 for position in tail {
[INFO] [stdout]     |                                 ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: half-open range patterns are unstable
[INFO] [stdout]    --> asciifile/src/span.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |             [head, tail..] => {
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stdout]     = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stdout]    --> asciifile/src/span.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |             [head, tail..] => {
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stdout]     = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling devise v0.2.0
[INFO] [stdout] error[E0425]: cannot find value `tail` in this scope
[INFO] [stdout]    --> asciifile/src/span.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |             [head, tail..] => {
[INFO] [stdout]     |                    ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `tail` in this scope
[INFO] [stdout]    --> asciifile/src/span.rs:200:33
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 for position in tail {
[INFO] [stdout]     |                                 ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: half-open range patterns are unstable
[INFO] [stdout]    --> asciifile/src/span.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |             [head, tail..] => {
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stdout]     = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stdout]    --> asciifile/src/span.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |             [head, tail..] => {
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stdout]     = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `asciifile`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "7ce956c5626afe14cf7de4d91abbe17e779e1ac69afcd6969e79fd287ae54dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce956c5626afe14cf7de4d91abbe17e779e1ac69afcd6969e79fd287ae54dad", kill_on_drop: false }`
[INFO] [stdout] 7ce956c5626afe14cf7de4d91abbe17e779e1ac69afcd6969e79fd287ae54dad