[INFO] fetching crate tuifw-screen-dos 0.26.0...
[INFO] checking tuifw-screen-dos-0.26.0 against 1.95.0 for pr-155915
[INFO] extracting crate tuifw-screen-dos 0.26.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate tuifw-screen-dos 0.26.0
[INFO] finished tweaking crates.io crate tuifw-screen-dos 0.26.0
[INFO] tweaked toml for crates.io crate tuifw-screen-dos 0.26.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tuifw-screen-dos 0.26.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding dos-cp v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding panicking v0.5.0 (available: v0.7.0)
[INFO] [stderr]       Adding pc-ints v0.3.6 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded int-vec-2d v0.1.5
[INFO] [stderr]   Downloaded enum-derive-2018 v3.0.2
[INFO] [stderr]   Downloaded iter-identify_first_last v0.2.3
[INFO] [stderr]   Downloaded exit-no-std v0.2.1
[INFO] [stderr]   Downloaded panicking v0.5.0
[INFO] [stderr]   Downloaded macro-attr-2018 v3.0.1
[INFO] [stderr]   Downloaded pc-ints v0.3.6
[INFO] [stderr]   Downloaded tuifw-screen-base v0.26.0
[INFO] [stderr]   Downloaded pc-ints v0.4.0
[INFO] [stderr]   Downloaded const-default v1.0.0
[INFO] [stderr]   Downloaded const-default-derive v0.2.0
[INFO] [stderr]   Downloaded exit-no-std v0.3.0
[INFO] [stderr]   Downloaded panicking v0.7.0
[INFO] [stderr]   Downloaded errno-sys v0.2.0
[INFO] [stderr]   Downloaded errno-no-std v0.2.2
[INFO] [stderr]   Downloaded print-no-std v0.3.0
[INFO] [stderr]   Downloaded sync-no-std v0.1.5
[INFO] [stderr]   Downloaded composable-allocators v0.3.5
[INFO] [stderr]   Downloaded dos-cp v0.7.0
[INFO] [stderr]   Downloaded dos-cp v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3eabe81620b6edb2fc54f59eeeece7f1b5d5265520f2077aab6a37fb0ee34cc
[INFO] running `Command { std: "docker" "start" "-a" "c3eabe81620b6edb2fc54f59eeeece7f1b5d5265520f2077aab6a37fb0ee34cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3eabe81620b6edb2fc54f59eeeece7f1b5d5265520f2077aab6a37fb0ee34cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3eabe81620b6edb2fc54f59eeeece7f1b5d5265520f2077aab6a37fb0ee34cc", kill_on_drop: false }`
[INFO] [stdout] c3eabe81620b6edb2fc54f59eeeece7f1b5d5265520f2077aab6a37fb0ee34cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5ea8313f123298dc7e7e28b776e26469cdb6daf65e53cb0acca6d16f8234974
[INFO] running `Command { std: "docker" "start" "-a" "a5ea8313f123298dc7e7e28b776e26469cdb6daf65e53cb0acca6d16f8234974", kill_on_drop: false }`
[INFO] [stderr]    Compiling errno-sys v0.2.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking enum-derive-2018 v3.0.2
[INFO] [stderr]     Checking macro-attr-2018 v3.0.1
[INFO] [stderr]     Checking panicking v0.7.0
[INFO] [stderr]     Checking exit-no-std v0.2.1
[INFO] [stderr]     Checking sync-no-std v0.1.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking int-vec-2d v0.1.5
[INFO] [stderr]     Checking panicking v0.5.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/sync-no-std-0.1.5/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking iter-identify_first_last v0.2.3
[INFO] [stderr]     Checking pc-ints v0.3.6
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/int-vec-2d-0.1.5/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_advance_by)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking const-default v1.0.0
[INFO] [stderr]     Checking dos-cp v0.7.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sync-no-std` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `int-vec-2d` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a5ea8313f123298dc7e7e28b776e26469cdb6daf65e53cb0acca6d16f8234974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ea8313f123298dc7e7e28b776e26469cdb6daf65e53cb0acca6d16f8234974", kill_on_drop: false }`
[INFO] [stdout] a5ea8313f123298dc7e7e28b776e26469cdb6daf65e53cb0acca6d16f8234974