[INFO] cloning repository https://github.com/ajscholl/mqs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ajscholl/mqs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajscholl%2Fmqs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajscholl%2Fmqs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8be8e24aee329b1c33f30f589ac8e0cea9a0636f
[INFO] testing ajscholl/mqs against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajscholl%2Fmqs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ajscholl/mqs on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ajscholl/mqs
[INFO] finished tweaking git repo https://github.com/ajscholl/mqs
[INFO] tweaked toml for git repo https://github.com/ajscholl/mqs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ajscholl/mqs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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 cached_proc_macro v0.12.0
[INFO] [stderr]   Downloaded async_once v0.2.6
[INFO] [stderr]   Downloaded cached v0.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a22ab5ecfaf3f08d12d750a5a2dbb198101e7228eea271b07d64d7ee0dcb433d
[INFO] running `Command { std: "docker" "start" "-a" "a22ab5ecfaf3f08d12d750a5a2dbb198101e7228eea271b07d64d7ee0dcb433d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a22ab5ecfaf3f08d12d750a5a2dbb198101e7228eea271b07d64d7ee0dcb433d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a22ab5ecfaf3f08d12d750a5a2dbb198101e7228eea271b07d64d7ee0dcb433d", kill_on_drop: false }`
[INFO] [stdout] a22ab5ecfaf3f08d12d750a5a2dbb198101e7228eea271b07d64d7ee0dcb433d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 865e14a5f388960f455f2906311d6222e2de92e355cf0f2dbe5b0176d6c2eefb
[INFO] running `Command { std: "docker" "start" "-a" "865e14a5f388960f455f2906311d6222e2de92e355cf0f2dbe5b0176d6c2eefb", 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] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling cached_proc_macro_types v0.1.0
[INFO] [stderr]    Compiling num_threads v0.1.5
[INFO] [stderr]    Compiling hashbrown v0.12.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling async_once v0.2.6
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling tracing-core v0.1.23
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling tracing v0.1.32
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.5
[INFO] [stderr]    Compiling r2d2 v0.8.9
[INFO] [stderr]    Compiling crypto-common v0.1.3
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling time v0.3.9
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling cached_proc_macro v0.12.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling diesel v1.4.8
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling cached v0.34.0
[INFO] [stderr]    Compiling h2 v0.3.12
[INFO] [stderr]    Compiling hyper v0.14.18
[INFO] [stderr]    Compiling mqs-common v0.1.0 (/opt/rustwide/workdir/mqs-common)
[INFO] [stderr]    Compiling r2d2-diesel v1.0.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> mqs-common/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unboxed_closures, fn_traits, in_band_lifetimes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqs-common` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "865e14a5f388960f455f2906311d6222e2de92e355cf0f2dbe5b0176d6c2eefb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "865e14a5f388960f455f2906311d6222e2de92e355cf0f2dbe5b0176d6c2eefb", kill_on_drop: false }`
[INFO] [stdout] 865e14a5f388960f455f2906311d6222e2de92e355cf0f2dbe5b0176d6c2eefb