[INFO] cloning repository https://github.com/Wawwior/bytecards
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Wawwior/bytecards" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWawwior%2Fbytecards", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWawwior%2Fbytecards'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b24d163d619161183523299e03e17dfca5e5725
[INFO] checking Wawwior/bytecards against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWawwior%2Fbytecards" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Wawwior/bytecards
[INFO] finished tweaking git repo https://github.com/Wawwior/bytecards
[INFO] tweaked toml for git repo https://github.com/Wawwior/bytecards written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Wawwior/bytecards 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] crate git repo https://github.com/Wawwior/bytecards already has a lockfile, it will not be regenerated
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded postcard-derive v0.1.2
[INFO] [stderr]   Downloaded cobs v0.2.3
[INFO] [stderr]   Downloaded serdect v0.3.0
[INFO] [stderr]   Downloaded postcard v1.1.1
[INFO] [stderr]   Downloaded crypto-bigint v0.6.1
[INFO] [stderr]   Downloaded crypto-primes v0.6.2
[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] d4ef86061dd3553245f4d11f5661de2346df2068ad91a3821063e53e97aa3ece
[INFO] running `Command { std: "docker" "start" "-a" "d4ef86061dd3553245f4d11f5661de2346df2068ad91a3821063e53e97aa3ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4ef86061dd3553245f4d11f5661de2346df2068ad91a3821063e53e97aa3ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ef86061dd3553245f4d11f5661de2346df2068ad91a3821063e53e97aa3ece", kill_on_drop: false }`
[INFO] [stdout] d4ef86061dd3553245f4d11f5661de2346df2068ad91a3821063e53e97aa3ece
[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] 189fb9155f6de466e1cfcf286932fa170ddc3f25e5f2ca36325c4a72576ab48f
[INFO] running `Command { std: "docker" "start" "-a" "189fb9155f6de466e1cfcf286932fa170ddc3f25e5f2ca36325c4a72576ab48f", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking cobs v0.2.3
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling postcard-derive v0.1.2
[INFO] [stderr]     Checking serdect v0.3.0
[INFO] [stderr]     Checking crypto-bigint v0.6.1
[INFO] [stderr]     Checking postcard v1.1.1
[INFO] [stderr]     Checking crypto-primes v0.6.2
[INFO] [stderr]     Checking bytecards v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_try_collect)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/proto.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_try_collect)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/proto.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bytecards` (bin "bytecards" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `bytecards` (bin "bytecards") due to 1 previous error; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "189fb9155f6de466e1cfcf286932fa170ddc3f25e5f2ca36325c4a72576ab48f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189fb9155f6de466e1cfcf286932fa170ddc3f25e5f2ca36325c4a72576ab48f", kill_on_drop: false }`
[INFO] [stdout] 189fb9155f6de466e1cfcf286932fa170ddc3f25e5f2ca36325c4a72576ab48f
