[INFO] cloning repository https://github.com/deciduously/lem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deciduously/lem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeciduously%2Flem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeciduously%2Flem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40e1d8a7639a12932d46d92b70964f6cc760caa0
[INFO] testing deciduously/lem against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeciduously%2Flem" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deciduously/lem on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deciduously/lem
[INFO] finished tweaking git repo https://github.com/deciduously/lem
[INFO] tweaked toml for git repo https://github.com/deciduously/lem written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/deciduously/lem already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_codegen_internals v0.14.1
[INFO] [stderr]   Downloaded state v0.2.0
[INFO] [stderr]   Downloaded num_cpus v1.3.0
[INFO] [stderr]   Downloaded unicode-bidi v0.2.5
[INFO] [stderr]   Downloaded serde_json v0.9.9
[INFO] [stderr]   Downloaded cookie v0.6.1
[INFO] [stderr]   Downloaded dotenv_codegen v0.10.0
[INFO] [stderr]   Downloaded url v1.4.0
[INFO] [stderr]   Downloaded syn v0.11.9
[INFO] [stderr]   Downloaded dotenv_macros v0.10.0
[INFO] [stderr]   Downloaded diesel_codegen v0.11.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.16
[INFO] [stderr]   Downloaded diesel_infer_schema v0.11.0
[INFO] [stderr]   Downloaded diesel v0.11.4
[INFO] [stderr]   Downloaded term v0.4.5
[INFO] [stderr]   Downloaded term-painter v0.2.3
[INFO] [stderr]   Downloaded version_check v0.1.0
[INFO] [stderr]   Downloaded time v0.1.36
[INFO] [stderr]   Downloaded unicode-normalization v0.1.4
[INFO] [stderr]   Downloaded r2d2-diesel v0.11.0
[INFO] [stderr]   Downloaded rocket v0.2.2
[INFO] [stderr]   Downloaded serde v0.9.11
[INFO] [stderr]   Downloaded serde_derive v0.9.11
[INFO] [stderr]   Downloaded r2d2 v0.7.1
[INFO] [stderr]   Downloaded rocket_codegen v0.2.2
[INFO] [stderr]   Downloaded hyper v0.10.5
[INFO] [stderr]   Downloaded pq-sys v0.4.2
[INFO] [stderr]   Downloaded rocket_contrib v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 075b0f1c3e5ba38d5a9844219a68fdaee907fb40ace992fb29dd048efd49a248
[INFO] running `Command { std: "docker" "start" "-a" "075b0f1c3e5ba38d5a9844219a68fdaee907fb40ace992fb29dd048efd49a248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "075b0f1c3e5ba38d5a9844219a68fdaee907fb40ace992fb29dd048efd49a248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "075b0f1c3e5ba38d5a9844219a68fdaee907fb40ace992fb29dd048efd49a248", kill_on_drop: false }`
[INFO] [stdout] 075b0f1c3e5ba38d5a9844219a68fdaee907fb40ace992fb29dd048efd49a248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37351647a7809f9dbb79c1791e7d4f4227c8680840714bd9c002f1c73dc63a91
[INFO] running `Command { std: "docker" "start" "-a" "37351647a7809f9dbb79c1791e7d4f4227c8680840714bd9c002f1c73dc63a91", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling serde v0.9.11
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling version_check v0.1.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling pq-sys v0.4.2
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling httparse v1.2.1
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling state v0.2.0
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling unicode-bidi v0.2.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `state` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "37351647a7809f9dbb79c1791e7d4f4227c8680840714bd9c002f1c73dc63a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37351647a7809f9dbb79c1791e7d4f4227c8680840714bd9c002f1c73dc63a91", kill_on_drop: false }`
[INFO] [stdout] 37351647a7809f9dbb79c1791e7d4f4227c8680840714bd9c002f1c73dc63a91