[INFO] fetching crate arche-tape 0.1.2...
[INFO] checking arche-tape-0.1.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate arche-tape 0.1.2 into /workspace/builds/worker-85/source
[INFO] validating manifest of crates.io crate arche-tape 0.1.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arche-tape 0.1.2
[INFO] finished tweaking crates.io crate arche-tape 0.1.2
[INFO] tweaked toml for crates.io crate arche-tape 0.1.2 written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a236d47fc806141ba65578b88a2755fc77cbc43410b4bc7d46097d1376be1917
[INFO] running `Command { std: "docker" "start" "-a" "a236d47fc806141ba65578b88a2755fc77cbc43410b4bc7d46097d1376be1917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a236d47fc806141ba65578b88a2755fc77cbc43410b4bc7d46097d1376be1917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a236d47fc806141ba65578b88a2755fc77cbc43410b4bc7d46097d1376be1917", kill_on_drop: false }`
[INFO] [stdout] a236d47fc806141ba65578b88a2755fc77cbc43410b4bc7d46097d1376be1917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d77123c58143daf9011ef7f13b5f66a29fdcff5203a9bd14dcc50e48a4b10fc
[INFO] running `Command { std: "docker" "start" "-a" "0d77123c58143daf9011ef7f13b5f66a29fdcff5203a9bd14dcc50e48a4b10fc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking arche-tape v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_in_array_repeat_expressions)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed due to causing promotable bugs
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[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]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr] error: could not compile `arche-tape` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0d77123c58143daf9011ef7f13b5f66a29fdcff5203a9bd14dcc50e48a4b10fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d77123c58143daf9011ef7f13b5f66a29fdcff5203a9bd14dcc50e48a4b10fc", kill_on_drop: false }`
[INFO] [stdout] 0d77123c58143daf9011ef7f13b5f66a29fdcff5203a9bd14dcc50e48a4b10fc