[INFO] cloning repository https://github.com/sstadick/eztree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sstadick/eztree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsstadick%2Feztree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsstadick%2Feztree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fc937c554389068fa16972ceff60d292054b807
[INFO] checking sstadick/eztree against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsstadick%2Feztree" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sstadick/eztree
[INFO] finished tweaking git repo https://github.com/sstadick/eztree
[INFO] tweaked toml for git repo https://github.com/sstadick/eztree written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sstadick/eztree on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sstadick/eztree 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.5.0
[INFO] [stderr]   Downloaded strum_macros v0.16.0
[INFO] [stderr]   Downloaded strum v0.16.0
[INFO] [stderr]   Downloaded eytzinger v1.0.1
[INFO] [stderr]   Downloaded getset v0.0.9
[INFO] [stderr]   Downloaded doc-comment v0.3.1
[INFO] [stderr]   Downloaded bit-set v0.5.1
[INFO] [stderr]   Downloaded serde v1.0.104
[INFO] [stderr]   Downloaded multimap v0.6.0
[INFO] [stderr]   Downloaded itoa v0.4.5
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] [stderr]   Downloaded snafu v0.5.0
[INFO] [stderr]   Downloaded bytecount v0.6.0
[INFO] [stderr]   Downloaded newtype_derive v0.1.6
[INFO] [stderr]   Downloaded csv-core v0.1.6
[INFO] [stderr]   Downloaded memchr v2.3.0
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded bio-types v0.5.1
[INFO] [stderr]   Downloaded bit-vec v0.5.1
[INFO] [stderr]   Downloaded serde_derive v1.0.104
[INFO] [stderr]   Downloaded bv v0.11.0
[INFO] [stderr]   Downloaded backtrace v0.3.43
[INFO] [stderr]   Downloaded regex-automata v0.1.8
[INFO] [stderr]   Downloaded statrs v0.11.0
[INFO] [stderr]   Downloaded aho-corasick v0.7.8
[INFO] [stderr]   Downloaded bio v0.30.0
[INFO] [stderr]   Downloaded ndarray v0.13.0
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] [stderr]   Downloaded csv v1.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ac5b11e247418d46fe402b755d23c94f3c2899c4e520b213b9d272f5041b670
[INFO] running `Command { std: "docker" "start" "-a" "8ac5b11e247418d46fe402b755d23c94f3c2899c4e520b213b9d272f5041b670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ac5b11e247418d46fe402b755d23c94f3c2899c4e520b213b9d272f5041b670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac5b11e247418d46fe402b755d23c94f3c2899c4e520b213b9d272f5041b670", kill_on_drop: false }`
[INFO] [stdout] 8ac5b11e247418d46fe402b755d23c94f3c2899c4e520b213b9d272f5041b670
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d641402ae46e95b3978ae160bf09a99482f577de327eb93e16e45915d1ec75ad
[INFO] running `Command { std: "docker" "start" "-a" "d641402ae46e95b3978ae160bf09a99482f577de327eb93e16e45915d1ec75ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling bv v0.11.0
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]    Compiling bio v0.30.0
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking eytzinger v1.0.1
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking strum v0.16.0
[INFO] [stderr]     Checking ginterval v0.1.0 (/opt/rustwide/workdir/ginterval)
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking eztreelib v0.1.0 (/opt/rustwide/workdir/eztreelib)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> eztreelib/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> eztreelib/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eztreelib` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d641402ae46e95b3978ae160bf09a99482f577de327eb93e16e45915d1ec75ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d641402ae46e95b3978ae160bf09a99482f577de327eb93e16e45915d1ec75ad", kill_on_drop: false }`
[INFO] [stdout] d641402ae46e95b3978ae160bf09a99482f577de327eb93e16e45915d1ec75ad