[INFO] cloning repository https://github.com/jerry73204/serde-edit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jerry73204/serde-edit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjerry73204%2Fserde-edit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjerry73204%2Fserde-edit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5b3434698c4faf5504593128111ea03576aba1f
[INFO] checking jerry73204/serde-edit against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjerry73204%2Fserde-edit" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jerry73204/serde-edit on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jerry73204/serde-edit
[INFO] finished tweaking git repo https://github.com/jerry73204/serde-edit
[INFO] tweaked toml for git repo https://github.com/jerry73204/serde-edit written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jerry73204/serde-edit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 60f3d1c1963b4b208f64fc344566d7a293315b5baf77dd631038b819780990f7
[INFO] running `Command { std: "docker" "start" "-a" "60f3d1c1963b4b208f64fc344566d7a293315b5baf77dd631038b819780990f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60f3d1c1963b4b208f64fc344566d7a293315b5baf77dd631038b819780990f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f3d1c1963b4b208f64fc344566d7a293315b5baf77dd631038b819780990f7", kill_on_drop: false }`
[INFO] [stdout] 60f3d1c1963b4b208f64fc344566d7a293315b5baf77dd631038b819780990f7
[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" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f399730e3fa2e9559c7e62e49eb3c04ab9a6b2d44ccfcea25a6d14734d7220eb
[INFO] running `Command { std: "docker" "start" "-a" "f399730e3fa2e9559c7e62e49eb3c04ab9a6b2d44ccfcea25a6d14734d7220eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]    Compiling debug_stub_derive v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking enum-map v0.6.4
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling wasmer_enumset_derive v0.5.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking wasmer_enumset v1.0.1
[INFO] [stderr]     Checking cursive_core v0.2.2
[INFO] [stderr]     Checking cursive v0.16.3
[INFO] [stderr]     Checking cursive_tree_view v0.7.0
[INFO] [stderr]     Checking serde-reflection v0.3.2
[INFO] [stderr]     Checking serde-edit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]   --> src/lib.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 |         ContainerFormat::NewTypeStruct(fields) => {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variants`
[INFO] [stdout]   --> src/lib.rs:91:31
[INFO] [stdout]    |
[INFO] [stdout] 91 |         ContainerFormat::Enum(variants) => {
[INFO] [stdout]    |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lib.rs:101:30
[INFO] [stdout]     |
[INFO] [stdout] 101 |         Format::Variable(ref format) => {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lib.rs:196:28
[INFO] [stdout]     |
[INFO] [stdout] 196 |         Format::Option(ref format) => {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lib.rs:199:25
[INFO] [stdout]     |
[INFO] [stdout] 199 |         Format::Seq(ref format) => {
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:202:23
[INFO] [stdout]     |
[INFO] [stdout] 202 |         Format::Map { ref key, ref value } => {
[INFO] [stdout]     |                       ^^^^^^^ help: try ignoring the field: `key: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:202:32
[INFO] [stdout]     |
[INFO] [stdout] 202 |         Format::Map { ref key, ref value } => {
[INFO] [stdout]     |                                ^^^^^^^^^ help: try ignoring the field: `value: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formats`
[INFO] [stdout]    --> src/lib.rs:205:27
[INFO] [stdout]     |
[INFO] [stdout] 205 |         Format::Tuple(ref formats) => {
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]   --> src/lib.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 |         ContainerFormat::NewTypeStruct(fields) => {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variants`
[INFO] [stdout]   --> src/lib.rs:91:31
[INFO] [stdout]    |
[INFO] [stdout] 91 |         ContainerFormat::Enum(variants) => {
[INFO] [stdout]    |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lib.rs:101:30
[INFO] [stdout]     |
[INFO] [stdout] 101 |         Format::Variable(ref format) => {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lib.rs:196:28
[INFO] [stdout]     |
[INFO] [stdout] 196 |         Format::Option(ref format) => {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lib.rs:199:25
[INFO] [stdout]     |
[INFO] [stdout] 199 |         Format::Seq(ref format) => {
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:202:23
[INFO] [stdout]     |
[INFO] [stdout] 202 |         Format::Map { ref key, ref value } => {
[INFO] [stdout]     |                       ^^^^^^^ help: try ignoring the field: `key: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:202:32
[INFO] [stdout]     |
[INFO] [stdout] 202 |         Format::Map { ref key, ref value } => {
[INFO] [stdout]     |                                ^^^^^^^^^ help: try ignoring the field: `value: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formats`
[INFO] [stdout]    --> src/lib.rs:205:27
[INFO] [stdout]     |
[INFO] [stdout] 205 |         Format::Tuple(ref formats) => {
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.60s
[INFO] running `Command { std: "docker" "inspect" "f399730e3fa2e9559c7e62e49eb3c04ab9a6b2d44ccfcea25a6d14734d7220eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f399730e3fa2e9559c7e62e49eb3c04ab9a6b2d44ccfcea25a6d14734d7220eb", kill_on_drop: false }`
[INFO] [stdout] f399730e3fa2e9559c7e62e49eb3c04ab9a6b2d44ccfcea25a6d14734d7220eb