[INFO] cloning repository https://github.com/google/mosaic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/google/mosaic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Fmosaic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Fmosaic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 345566951a795e69809dca52619631821e2897ed
[INFO] testing google/mosaic against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Fmosaic" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/google/mosaic on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/google/mosaic
[INFO] finished tweaking git repo https://github.com/google/mosaic
[INFO] tweaked toml for git repo https://github.com/google/mosaic written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/google/mosaic 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/tmandry/trybuild.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unindent v0.1.6
[INFO] [stderr]   Downloaded salsa-macros v0.14.1
[INFO] [stderr]   Downloaded codespan-reporting v0.9.5
[INFO] [stderr]   Downloaded codespan v0.9.5
[INFO] [stderr]   Downloaded salsa v0.14.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b554f2f02b441f243df977775cacaa99f94d1ae7b0414facafa2b56047ca2a7
[INFO] running `Command { std: "docker" "start" "-a" "8b554f2f02b441f243df977775cacaa99f94d1ae7b0414facafa2b56047ca2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b554f2f02b441f243df977775cacaa99f94d1ae7b0414facafa2b56047ca2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b554f2f02b441f243df977775cacaa99f94d1ae7b0414facafa2b56047ca2a7", kill_on_drop: false }`
[INFO] [stdout] 8b554f2f02b441f243df977775cacaa99f94d1ae7b0414facafa2b56047ca2a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67f3862749fdbc3a4a2ab212e206fe68a4972a8812c9c04ea2afb6b9aa258f74
[INFO] running `Command { std: "docker" "start" "-a" "67f3862749fdbc3a4a2ab212e206fe68a4972a8812c9c04ea2afb6b9aa258f74", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling smallvec v1.4.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling codespan-reporting v0.9.5
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling codespan v0.9.5
[INFO] [stderr]    Compiling clang v1.0.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling cc_use_common v0.1.0 (/opt/rustwide/workdir/cc_use_common)
[INFO] [stderr]    Compiling gen_macro_impl v0.1.0 (/opt/rustwide/workdir/gen_macro/impl)
[INFO] [stderr]    Compiling salsa-macros v0.14.1
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling gen_macro v0.1.0 (/opt/rustwide/workdir/gen_macro)
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]    Compiling salsa v0.14.4
[INFO] [stderr]    Compiling structopt v0.3.15
[INFO] [stderr]    Compiling rental v0.5.6
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling trybuild v1.0.30 (https://github.com/tmandry/trybuild.git?branch=strategy#1a5990c4)
[INFO] [stderr]    Compiling mosaic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mosaic` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "67f3862749fdbc3a4a2ab212e206fe68a4972a8812c9c04ea2afb6b9aa258f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67f3862749fdbc3a4a2ab212e206fe68a4972a8812c9c04ea2afb6b9aa258f74", kill_on_drop: false }`
[INFO] [stdout] 67f3862749fdbc3a4a2ab212e206fe68a4972a8812c9c04ea2afb6b9aa258f74
