[INFO] fetching crate merk 1.0.1...
[INFO] checking merk-1.0.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate merk 1.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate merk 1.0.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merk 1.0.1
[INFO] finished tweaking crates.io crate merk 1.0.1
[INFO] tweaked toml for crates.io crate merk 1.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9507aa3320481690bea015b7709a6866d5dce8e916e57082b9b240496daf56f
[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" "f9507aa3320481690bea015b7709a6866d5dce8e916e57082b9b240496daf56f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9507aa3320481690bea015b7709a6866d5dce8e916e57082b9b240496daf56f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9507aa3320481690bea015b7709a6866d5dce8e916e57082b9b240496daf56f", kill_on_drop: false }`
[INFO] [stdout] f9507aa3320481690bea015b7709a6866d5dce8e916e57082b9b240496daf56f
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed914f47e2f3df3dbf3768a973a99aa3e82ec9f0d465f8659ac3951b38faa9ad
[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" "ed914f47e2f3df3dbf3768a973a99aa3e82ec9f0d465f8659ac3951b38faa9ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling seq-macro v0.1.5
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.1.2
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling ed-derive v0.1.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking ed v0.1.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed-0.1.5/src/lib.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | #![feature(optin_builtin_traits)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: renamed to `auto_traits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: auto traits are experimental and possibly buggy
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed-0.1.5/src/lib.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub auto trait Terminated {}
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #13231 <https://github.com/rust-lang/rust/issues/13231> for more information
[INFO] [stdout]     = help: add `#![feature(auto_traits)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ed`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ed914f47e2f3df3dbf3768a973a99aa3e82ec9f0d465f8659ac3951b38faa9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed914f47e2f3df3dbf3768a973a99aa3e82ec9f0d465f8659ac3951b38faa9ad", kill_on_drop: false }`
[INFO] [stdout] ed914f47e2f3df3dbf3768a973a99aa3e82ec9f0d465f8659ac3951b38faa9ad