[INFO] cloning repository https://github.com/Windfisch/loopfisch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Windfisch/loopfisch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Floopfisch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Floopfisch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae3c0846fd5d12fad50aa6506690443d981dd954
[INFO] checking Windfisch/loopfisch against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Floopfisch" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Windfisch/loopfisch on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Windfisch/loopfisch
[INFO] finished tweaking git repo https://github.com/Windfisch/loopfisch
[INFO] tweaked toml for git repo https://github.com/Windfisch/loopfisch written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/Windfisch/loopfisch already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/Windfisch/rust-assert-no-alloc`
[INFO] [stderr]     Updating git repository `https://github.com/jkryl/eventfd-rust`
[INFO] [stderr]     Updating git repository `https://github.com/Windfisch/gen-iter`
[INFO] [stderr]     Updating git repository `https://github.com/Windfisch/rust-jack`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ref-cast v1.0.3
[INFO] [stderr]   Downloaded ringbuf v0.2.2
[INFO] [stderr]   Downloaded libloading v0.6.6
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] [stderr]   Downloaded ubyte v0.10.1
[INFO] [stderr]   Downloaded async-global-executor v1.4.3
[INFO] [stderr]   Downloaded http v0.2.2
[INFO] [stderr]   Downloaded async-std v1.8.0
[INFO] [stderr]   Downloaded pear_codegen v0.2.0
[INFO] [stderr]   Downloaded pear v0.2.0
[INFO] [stderr]   Downloaded syn v1.0.55
[INFO] [stderr]   Downloaded intrusive-collections v0.9.0
[INFO] [stderr]   Downloaded figment v0.9.4
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.2
[INFO] [stderr]   Downloaded pin-project v1.0.2
[INFO] [stderr]   Downloaded tokio-fd v0.1.0
[INFO] [stderr]   Downloaded pin-project-internal v1.0.2
[INFO] [stderr]   Downloaded proc-macro2-diagnostics v0.9.1
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.3
[INFO] [stderr]   Downloaded state v0.4.2
[INFO] [stderr]   Downloaded pin-project-lite v0.2.0
[INFO] [stderr]   Downloaded inlinable_string v0.1.14
[INFO] [stderr]   Downloaded uncased v0.9.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cca452d97571f3db5ce5c47893cef5492b5822c036aac028d35eb01bc07c43d
[INFO] running `Command { std: "docker" "start" "-a" "2cca452d97571f3db5ce5c47893cef5492b5822c036aac028d35eb01bc07c43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cca452d97571f3db5ce5c47893cef5492b5822c036aac028d35eb01bc07c43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cca452d97571f3db5ce5c47893cef5492b5822c036aac028d35eb01bc07c43d", kill_on_drop: false }`
[INFO] [stdout] 2cca452d97571f3db5ce5c47893cef5492b5822c036aac028d35eb01bc07c43d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4baf108d07930e5e0119a63eb313c5c07ab1bb016626f70e0bee1dc1187abe7f
[INFO] running `Command { std: "docker" "start" "-a" "4baf108d07930e5e0119a63eb313c5c07ab1bb016626f70e0bee1dc1187abe7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling state v0.4.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ringbuf v0.2.2
[INFO] [stderr]     Checking assert_no_alloc v1.1.0 (https://github.com/Windfisch/rust-assert-no-alloc#deacecf3)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/rust-assert-no-alloc-c1cae25abd4b4222/deacecf/src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(external_doc)]
[INFO] [stdout]    |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `assert_no_alloc`
[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" "4baf108d07930e5e0119a63eb313c5c07ab1bb016626f70e0bee1dc1187abe7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4baf108d07930e5e0119a63eb313c5c07ab1bb016626f70e0bee1dc1187abe7f", kill_on_drop: false }`
[INFO] [stdout] 4baf108d07930e5e0119a63eb313c5c07ab1bb016626f70e0bee1dc1187abe7f