[INFO] fetching crate serde-value 0.6.0...
[INFO] checking serde-value-0.6.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate serde-value 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde-value 0.6.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde-value 0.6.0
[INFO] finished tweaking crates.io crate serde-value 0.6.0
[INFO] tweaked toml for crates.io crate serde-value 0.6.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9652bf7b74aaa801bcc95f3b241cd70ae7166c8dc4fab1c4ec3cf66c55096c72
[INFO] running `"docker" "start" "-a" "9652bf7b74aaa801bcc95f3b241cd70ae7166c8dc4fab1c4ec3cf66c55096c72"`
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking serde-value v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de.rs:271:32
[INFO] [stderr]     |
[INFO] [stderr] 271 |         while let Some(elem) = try!(visitor.next_element()) {
[INFO] [stderr]     |                                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de.rs:279:40
[INFO] [stderr]     |
[INFO] [stderr] 279 |         while let Some((key, value)) = try!(visitor.next_entry()) {
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/de.rs:99:50
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn invalid_type(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/de.rs:103:51
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn invalid_value(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/de.rs:107:41
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn invalid_length(len: usize, exp: &de::Expected) -> Self {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de.rs:271:32
[INFO] [stderr]     |
[INFO] [stderr] 271 |         while let Some(elem) = try!(visitor.next_element()) {
[INFO] [stderr]     |                                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de.rs:279:40
[INFO] [stderr]     |
[INFO] [stderr] 279 |         while let Some((key, value)) = try!(visitor.next_entry()) {
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/de.rs:99:50
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn invalid_type(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/de.rs:103:51
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn invalid_value(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/de.rs:107:41
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn invalid_length(len: usize, exp: &de::Expected) -> Self {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "9652bf7b74aaa801bcc95f3b241cd70ae7166c8dc4fab1c4ec3cf66c55096c72"`
[INFO] running `"docker" "rm" "-f" "9652bf7b74aaa801bcc95f3b241cd70ae7166c8dc4fab1c4ec3cf66c55096c72"`
[INFO] [stdout] 9652bf7b74aaa801bcc95f3b241cd70ae7166c8dc4fab1c4ec3cf66c55096c72