[INFO] cloning repository https://github.com/aidanhs/tokio-framed-slow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aidanhs/tokio-framed-slow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faidanhs%2Ftokio-framed-slow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faidanhs%2Ftokio-framed-slow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e21596aea03b09899ba33a1f1763670b052afb5
[INFO] checking aidanhs/tokio-framed-slow against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faidanhs%2Ftokio-framed-slow" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aidanhs/tokio-framed-slow
[INFO] finished tweaking git repo https://github.com/aidanhs/tokio-framed-slow
[INFO] tweaked toml for git repo https://github.com/aidanhs/tokio-framed-slow written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aidanhs/tokio-framed-slow 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/aidanhs/tokio-framed-slow 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]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.11
[INFO] [stderr]   Downloaded tracing v0.1.32
[INFO] [stderr]   Downloaded pin-project-lite v0.2.8
[INFO] [stderr]   Downloaded futures-executor v0.3.21
[INFO] [stderr]   Downloaded quote v1.0.17
[INFO] [stderr]   Downloaded semver v1.0.7
[INFO] [stderr]   Downloaded tracing-attributes v0.1.20
[INFO] [stderr]   Downloaded tracing-core v0.1.24
[INFO] [stderr]   Downloaded log v0.4.16
[INFO] [stderr]   Downloaded educe v0.4.19
[INFO] [stderr]   Downloaded futures v0.3.21
[INFO] [stderr]   Downloaded mio v0.8.2
[INFO] [stderr]   Downloaded tokio-util v0.7.1
[INFO] [stderr]   Downloaded ntapi v0.3.7
[INFO] [stderr]   Downloaded syn v1.0.90
[INFO] [stderr]   Downloaded libc v0.2.121
[INFO] [stderr]   Downloaded tokio v1.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f72644c682b5c978ff976959057e8d187da045d249d7d9ef5240ef98f15a6cc6
[INFO] running `Command { std: "docker" "start" "-a" "f72644c682b5c978ff976959057e8d187da045d249d7d9ef5240ef98f15a6cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f72644c682b5c978ff976959057e8d187da045d249d7d9ef5240ef98f15a6cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72644c682b5c978ff976959057e8d187da045d249d7d9ef5240ef98f15a6cc6", kill_on_drop: false }`
[INFO] [stdout] f72644c682b5c978ff976959057e8d187da045d249d7d9ef5240ef98f15a6cc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fb0f27e84cbec60d90b5269357de7d2268be768ca595dbde7406ae0c0fb0d143
[INFO] running `Command { std: "docker" "start" "-a" "fb0f27e84cbec60d90b5269357de7d2268be768ca595dbde7406ae0c0fb0d143", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking tracing-core v0.1.24
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling enum-ordinalize v3.1.11
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling educe v0.4.19
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-util v0.7.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking tokio-serde v0.8.0
[INFO] [stderr]     Checking bench 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(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[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(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bench` (bin "bench") 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 `bench` (bin "bench" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fb0f27e84cbec60d90b5269357de7d2268be768ca595dbde7406ae0c0fb0d143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0f27e84cbec60d90b5269357de7d2268be768ca595dbde7406ae0c0fb0d143", kill_on_drop: false }`
[INFO] [stdout] fb0f27e84cbec60d90b5269357de7d2268be768ca595dbde7406ae0c0fb0d143
