[INFO] fetching crate dep-obj 0.19.0...
[INFO] checking dep-obj-0.19.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate dep-obj 0.19.0 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate dep-obj 0.19.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dep-obj 0.19.0
[INFO] finished tweaking crates.io crate dep-obj 0.19.0
[INFO] tweaked toml for crates.io crate dep-obj 0.19.0 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate crates.io crate dep-obj 0.19.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 141de802820d7f50e84654a438e2eb9040e224e188f5f4ac7363bc2e451fc59a
[INFO] running `Command { std: "docker" "start" "-a" "141de802820d7f50e84654a438e2eb9040e224e188f5f4ac7363bc2e451fc59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "141de802820d7f50e84654a438e2eb9040e224e188f5f4ac7363bc2e451fc59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "141de802820d7f50e84654a438e2eb9040e224e188f5f4ac7363bc2e451fc59a", kill_on_drop: false }`
[INFO] [stdout] 141de802820d7f50e84654a438e2eb9040e224e188f5f4ac7363bc2e451fc59a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bc714d4f448b55984a4d944a848a86809ac0c40391ec450169a79343b3477b0
[INFO] running `Command { std: "docker" "start" "-a" "1bc714d4f448b55984a4d944a848a86809ac0c40391ec450169a79343b3477b0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking generics v0.3.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking macro-attr-2018 v1.1.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking dyn-context v0.7.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling enum-ordinalize v3.1.10
[INFO] [stderr]    Compiling educe v0.4.18
[INFO] [stderr]     Checking phantom-type v0.3.1
[INFO] [stderr]     Checking components-arena v2.1.2
[INFO] [stderr]     Checking dep-obj v0.19.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: the feature `shrink_to` has been stable since 1.56.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | #![feature(shrink_to)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(stable_features)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dep-obj` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: the feature `shrink_to` has been stable since 1.56.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | #![feature(shrink_to)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(stable_features)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1bc714d4f448b55984a4d944a848a86809ac0c40391ec450169a79343b3477b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bc714d4f448b55984a4d944a848a86809ac0c40391ec450169a79343b3477b0", kill_on_drop: false }`
[INFO] [stdout] 1bc714d4f448b55984a4d944a848a86809ac0c40391ec450169a79343b3477b0