[INFO] crate serde-value 0.6.0 is already in cache
[INFO] checking serde-value-0.6.0 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate serde-value 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate serde-value 0.6.0 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dc4e227a41a4f4329912782372723bcf759f476e79d4a0eef941201c5e05812
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9dc4e227a41a4f4329912782372723bcf759f476e79d4a0eef941201c5e05812", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dc4e227a41a4f4329912782372723bcf759f476e79d4a0eef941201c5e05812", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dc4e227a41a4f4329912782372723bcf759f476e79d4a0eef941201c5e05812", kill_on_drop: false }`
[INFO] [stdout] 9dc4e227a41a4f4329912782372723bcf759f476e79d4a0eef941201c5e05812
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb9a155fe348a960785e39c851579988169f52e7b2158342f358ec5d2d528672
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cb9a155fe348a960785e39c851579988169f52e7b2158342f358ec5d2d528672", kill_on_drop: false }`
[INFO] [stderr]     Checking serde-value v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/de.rs:271:32
[INFO] [stdout]     |
[INFO] [stdout] 271 |         while let Some(elem) = try!(visitor.next_element()) {
[INFO] [stdout]     |                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/de.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |         while let Some((key, value)) = try!(visitor.next_entry()) {
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/de.rs:99:50
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn invalid_type(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de.rs:103:51
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn invalid_value(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de.rs:107:41
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn invalid_length(len: usize, exp: &de::Expected) -> Self {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/de.rs:271:32
[INFO] [stdout]     |
[INFO] [stdout] 271 |         while let Some(elem) = try!(visitor.next_element()) {
[INFO] [stdout]     |                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/de.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |         while let Some((key, value)) = try!(visitor.next_entry()) {
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/de.rs:99:50
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn invalid_type(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de.rs:103:51
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn invalid_value(unexp: de::Unexpected, exp: &de::Expected) -> Self {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/de.rs:107:41
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn invalid_length(len: usize, exp: &de::Expected) -> Self {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn de::Expected`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "cb9a155fe348a960785e39c851579988169f52e7b2158342f358ec5d2d528672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb9a155fe348a960785e39c851579988169f52e7b2158342f358ec5d2d528672", kill_on_drop: false }`
[INFO] [stdout] cb9a155fe348a960785e39c851579988169f52e7b2158342f358ec5d2d528672