[INFO] fetching crate mgm 0.5.0-pre.1...
[INFO] checking mgm-0.5.0-pre.1 against 1.95.0 for pr-155915
[INFO] extracting crate mgm 0.5.0-pre.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate mgm 0.5.0-pre.1
[INFO] finished tweaking crates.io crate mgm 0.5.0-pre.1
[INFO] tweaked toml for crates.io crate mgm 0.5.0-pre.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mgm 0.5.0-pre.1 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 31 packages to latest compatible versions
[INFO] [stderr]       Adding aead v0.5.0-pre.2 (available: v0.5.2)
[INFO] [stderr]       Adding cipher v0.3.0 (available: v0.5.1)
[INFO] [stderr]       Adding cpufeatures v0.2.17 (available: v0.3.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding hex-literal v0.2.2 (available: v1.1.0)
[INFO] [stderr]       Adding kuznyechik v0.7.2 (available: v0.9.0)
[INFO] [stderr]       Adding magma v0.7.0 (available: v0.10.0)
[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 aead v0.5.0-pre.2
[INFO] [stderr]   Downloaded magma v0.7.0
[INFO] [stderr]   Downloaded blobby v0.3.1
[INFO] [stderr]   Downloaded hex-literal v0.2.2
[INFO] [stderr]   Downloaded hex-literal-impl v0.2.3
[INFO] [stderr]   Downloaded kuznyechik v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b598d298c4869b2ea80f0fa52d992de835050010e88fe624ce7d8d4f9dc3fa46
[INFO] running `Command { std: "docker" "start" "-a" "b598d298c4869b2ea80f0fa52d992de835050010e88fe624ce7d8d4f9dc3fa46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b598d298c4869b2ea80f0fa52d992de835050010e88fe624ce7d8d4f9dc3fa46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b598d298c4869b2ea80f0fa52d992de835050010e88fe624ce7d8d4f9dc3fa46", kill_on_drop: false }`
[INFO] [stdout] b598d298c4869b2ea80f0fa52d992de835050010e88fe624ce7d8d4f9dc3fa46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] afaf9a00eeb0fa539279f368bab918d67b75d1a2aa597d8bc22c360ddf425627
[INFO] running `Command { std: "docker" "start" "-a" "afaf9a00eeb0fa539279f368bab918d67b75d1a2aa597d8bc22c360ddf425627", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking blobby v0.3.1
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking crypto-common v0.1.7
[INFO] [stderr]     Checking aead v0.5.0-pre.2
[INFO] [stderr]     Checking kuznyechik v0.7.2
[INFO] [stderr]     Checking magma v0.7.0
[INFO] [stderr]     Checking mgm v0.5.0-pre.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling hex-literal-impl v0.2.3
[INFO] [stderr]     Checking hex-literal v0.2.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mgm` (bench "mod") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "afaf9a00eeb0fa539279f368bab918d67b75d1a2aa597d8bc22c360ddf425627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afaf9a00eeb0fa539279f368bab918d67b75d1a2aa597d8bc22c360ddf425627", kill_on_drop: false }`
[INFO] [stdout] afaf9a00eeb0fa539279f368bab918d67b75d1a2aa597d8bc22c360ddf425627
