[INFO] fetching crate kg-lang 0.1.1...
[INFO] testing kg-lang-0.1.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate kg-lang 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate kg-lang 0.1.1
[INFO] finished tweaking crates.io crate kg-lang 0.1.1
[INFO] tweaked toml for crates.io crate kg-lang 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kg-lang 0.1.1 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 104 packages to latest compatible versions
[INFO] [stderr]       Adding kg-diag v0.2.7 (available: v0.4.0)
[INFO] [stderr]       Adding kg-js v0.1.1 (available: v0.9.1)
[INFO] [stderr]       Adding kg-tree v0.1.7 (available: v0.2.1)
[INFO] [stderr]       Adding kg-utils v0.3.1 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kg-utils v0.3.1
[INFO] [stderr]   Downloaded kg-symbol v0.1.10
[INFO] [stderr]   Downloaded kg-display v0.1.2
[INFO] [stderr]   Downloaded heapsize_derive v0.1.4
[INFO] [stderr]   Downloaded kg-utils v0.2.4
[INFO] [stderr]   Downloaded kg-tree v0.1.7
[INFO] [stderr]   Downloaded kg-display-derive v0.1.1
[INFO] [stderr]   Downloaded kg-diag v0.2.7
[INFO] [stderr]   Downloaded kg-diag-derive v0.2.3
[INFO] [stderr]   Downloaded kg-js v0.1.1
[INFO] [stderr]   Downloaded synstructure v0.5.2
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b7eea200fc632f197292728c43c53ebfed04acd4b124794599445e8bfe6c7ca
[INFO] running `Command { std: "docker" "start" "-a" "8b7eea200fc632f197292728c43c53ebfed04acd4b124794599445e8bfe6c7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b7eea200fc632f197292728c43c53ebfed04acd4b124794599445e8bfe6c7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b7eea200fc632f197292728c43c53ebfed04acd4b124794599445e8bfe6c7ca", kill_on_drop: false }`
[INFO] [stdout] 8b7eea200fc632f197292728c43c53ebfed04acd4b124794599445e8bfe6c7ca
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 191cb1256c025ef4c97e5b646a9e0d96a31f0d2a9b7d2f1f4f947f8caeca9b82
[INFO] running `Command { std: "docker" "start" "-a" "191cb1256c025ef4c97e5b646a9e0d96a31f0d2a9b7d2f1f4f947f8caeca9b82", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lock_api-0.2.0/src/lib.rs:89:42
[INFO] [stdout]    |
[INFO] [stdout] 89 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in 1.54.0; see <https://github.com/rust-lang/rust/pull/85109> for more information
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling rlibc v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "191cb1256c025ef4c97e5b646a9e0d96a31f0d2a9b7d2f1f4f947f8caeca9b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "191cb1256c025ef4c97e5b646a9e0d96a31f0d2a9b7d2f1f4f947f8caeca9b82", kill_on_drop: false }`
[INFO] [stdout] 191cb1256c025ef4c97e5b646a9e0d96a31f0d2a9b7d2f1f4f947f8caeca9b82