[INFO] fetching crate dusk-kelvin-map 0.4.0...
[INFO] checking dusk-kelvin-map-0.4.0 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate dusk-kelvin-map 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate dusk-kelvin-map 0.4.0 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dusk-kelvin-map 0.4.0
[INFO] finished tweaking crates.io crate dusk-kelvin-map 0.4.0
[INFO] tweaked toml for crates.io crate dusk-kelvin-map 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages to latest compatible versions
[INFO] [stderr]       Adding canonical v0.6.6 (available: v0.7.1)
[INFO] [stderr]       Adding canonical_derive v0.6.0 (available: v0.7.0)
[INFO] [stderr]       Adding microkelvin v0.7.1 (available: v0.17.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dusk-varint v0.1.0
[INFO] [stderr]   Downloaded blake2b_simd v0.3.1
[INFO] [stderr]   Downloaded canonical v0.6.6
[INFO] [stderr]   Downloaded canonical_derive v0.6.0
[INFO] [stderr]   Downloaded microkelvin v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4158eecd6779433a3c10196f8a278acb471d2fca3c8bd40127d3d28fec0f0fb
[INFO] running `Command { std: "docker" "start" "-a" "b4158eecd6779433a3c10196f8a278acb471d2fca3c8bd40127d3d28fec0f0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4158eecd6779433a3c10196f8a278acb471d2fca3c8bd40127d3d28fec0f0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4158eecd6779433a3c10196f8a278acb471d2fca3c8bd40127d3d28fec0f0fb", kill_on_drop: false }`
[INFO] [stdout] b4158eecd6779433a3c10196f8a278acb471d2fca3c8bd40127d3d28fec0f0fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f0f3ef9024393696bf5f16d770c848bb4ca4bec57df09456ea2ed1adc374145
[INFO] running `Command { std: "docker" "start" "-a" "3f0f3ef9024393696bf5f16d770c848bb4ca4bec57df09456ea2ed1adc374145", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling dusk-varint v0.1.0
[INFO] [stderr]    Compiling arbitrary v1.4.1
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking blake2b_simd v0.3.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking canonical v0.6.6
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling canonical_derive v0.6.0
[INFO] [stderr]     Checking microkelvin v0.7.1
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking dusk-kelvin-map v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(external_doc)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dusk-kelvin-map` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3f0f3ef9024393696bf5f16d770c848bb4ca4bec57df09456ea2ed1adc374145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f0f3ef9024393696bf5f16d770c848bb4ca4bec57df09456ea2ed1adc374145", kill_on_drop: false }`
[INFO] [stdout] 3f0f3ef9024393696bf5f16d770c848bb4ca4bec57df09456ea2ed1adc374145