[INFO] fetching crate relp-bin 0.0.6...
[INFO] testing relp-bin-0.0.6 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate relp-bin 0.0.6 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate relp-bin 0.0.6
[INFO] finished tweaking crates.io crate relp-bin 0.0.6
[INFO] tweaked toml for crates.io crate relp-bin 0.0.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate relp-bin 0.0.6 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate relp-bin 0.0.6 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca56d10d3d8e64dc8f6c719d3fad6620197b353b9f477371dd3f580086d52a9d
[INFO] running `Command { std: "docker" "start" "-a" "ca56d10d3d8e64dc8f6c719d3fad6620197b353b9f477371dd3f580086d52a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca56d10d3d8e64dc8f6c719d3fad6620197b353b9f477371dd3f580086d52a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca56d10d3d8e64dc8f6c719d3fad6620197b353b9f477371dd3f580086d52a9d", kill_on_drop: false }`
[INFO] [stdout] ca56d10d3d8e64dc8f6c719d3fad6620197b353b9f477371dd3f580086d52a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 851a1b15e662685158aa234b628eeafdea1c41791adb7037be2f8cd94c72e7f2
[INFO] running `Command { std: "docker" "start" "-a" "851a1b15e662685158aa234b628eeafdea1c41791adb7037be2f8cd94c72e7f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling gcd v2.0.1
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling cumsum v1.0.0
[INFO] [stderr]    Compiling fifo-set v1.0.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling relp-num v0.1.10
[INFO] [stderr]    Compiling index-utils v2.2.0
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/index-utils-2.2.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/index-utils-2.2.0/src/num.rs:124:44
[INFO] [stdout]     |
[INFO] [stdout] 124 |     debug_assert!(left.is_sorted_by(|a, b| Some(a.0.cmp(&b.0))));
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Option<Ordering>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `bool`
[INFO] [stdout]                found enum `Option<std::cmp::Ordering>`
[INFO] [stdout] help: use `Option::is_some` to test if the `Option` has a value
[INFO] [stdout]     |
[INFO] [stdout] 124 |     debug_assert!(left.is_sorted_by(|a, b| Some(a.0.cmp(&b.0)).is_some()));
[INFO] [stdout]     |                                                               ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/index-utils-2.2.0/src/num.rs:126:45
[INFO] [stdout]     |
[INFO] [stdout] 126 |     debug_assert!(right.is_sorted_by(|a, b| Some(a.0.cmp(&b.0))));
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Option<Ordering>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `bool`
[INFO] [stdout]                found enum `Option<std::cmp::Ordering>`
[INFO] [stdout] help: use `Option::is_some` to test if the `Option` has a value
[INFO] [stdout]     |
[INFO] [stdout] 126 |     debug_assert!(right.is_sorted_by(|a, b| Some(a.0.cmp(&b.0)).is_some()));
[INFO] [stdout]     |                                                                ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for mutable reference `&mut Vec<(usize, T)>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/index-utils-2.2.0/src/lib.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     vector.drain_filter(|(i, _)| {
[INFO] [stdout]    |     -------^^^^^^^^^^^^ method not found in `&mut Vec<(usize, T)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `index-utils` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "851a1b15e662685158aa234b628eeafdea1c41791adb7037be2f8cd94c72e7f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851a1b15e662685158aa234b628eeafdea1c41791adb7037be2f8cd94c72e7f2", kill_on_drop: false }`
[INFO] [stdout] 851a1b15e662685158aa234b628eeafdea1c41791adb7037be2f8cd94c72e7f2