[INFO] fetching crate swasmi 0.4.5...
[INFO] testing swasmi-0.4.5 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate swasmi 0.4.5 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate swasmi 0.4.5 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swasmi 0.4.5
[INFO] finished tweaking crates.io crate swasmi 0.4.5
[INFO] tweaked toml for crates.io crate swasmi 0.4.5 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30bdfded03301778dd0dd6900b9fd3604e611fb5b0bc3128cee0b0400e644623
[INFO] running `Command { std: "docker" "start" "-a" "30bdfded03301778dd0dd6900b9fd3604e611fb5b0bc3128cee0b0400e644623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30bdfded03301778dd0dd6900b9fd3604e611fb5b0bc3128cee0b0400e644623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bdfded03301778dd0dd6900b9fd3604e611fb5b0bc3128cee0b0400e644623", kill_on_drop: false }`
[INFO] [stdout] 30bdfded03301778dd0dd6900b9fd3604e611fb5b0bc3128cee0b0400e644623
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32ae83ed1abc63946b7a7ea3bebdb7ca63dcfdf4a2c2e7b3ff372150ef186d35
[INFO] running `Command { std: "docker" "start" "-a" "32ae83ed1abc63946b7a7ea3bebdb7ca63dcfdf4a2c2e7b3ff372150ef186d35", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling memory_units v0.3.0
[INFO] [stderr]    Compiling swasm v0.31.3
[INFO] [stderr]    Compiling swasmi-validation v0.1.0
[INFO] [stderr]    Compiling swasmi v0.4.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:241:14
[INFO] [stdout]     |
[INFO] [stdout] 241 |     Host(Box<host::HostError>),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn host::HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:275:14
[INFO] [stdout]     |
[INFO] [stdout] 275 |     Host(Box<host::HostError>),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn host::HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:287:44
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub fn as_host_error(&self) -> Option<&host::HostError> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn host::HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/host.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl HostError {
[INFO] [stdout]     |      ^^^^^^^^^ help: use `dyn`: `dyn HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/host.rs:121:45
[INFO] [stdout]     |
[INFO] [stdout] 121 |             unsafe { Some(&*(self as *const HostError as *const T)) }
[INFO] [stdout]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/host.rs:131:47
[INFO] [stdout]     |
[INFO] [stdout] 131 |             unsafe { Some(&mut *(self as *mut HostError as *mut T)) }
[INFO] [stdout]     |                                               ^^^^^^^^^ help: use `dyn`: `dyn HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |     modules: HashMap<String, &'a ModuleImportResolver>,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:130:23
[INFO] [stdout]     |
[INFO] [stdout] 130 |         resolver: &'a ModuleImportResolver,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:139:77
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push_resolver<N: Into<String>>(&mut self, name: N, resolver: &'a ModuleImportResolver) {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn resolver(&self, name: &str) -> Option<&ModuleImportResolver> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.55s
[INFO] running `Command { std: "docker" "inspect" "32ae83ed1abc63946b7a7ea3bebdb7ca63dcfdf4a2c2e7b3ff372150ef186d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32ae83ed1abc63946b7a7ea3bebdb7ca63dcfdf4a2c2e7b3ff372150ef186d35", kill_on_drop: false }`
[INFO] [stdout] 32ae83ed1abc63946b7a7ea3bebdb7ca63dcfdf4a2c2e7b3ff372150ef186d35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6641f2527dc335df420e852f82a958e32a5aa48031e9f4ce9e55fb0e51d1d04a
[INFO] running `Command { std: "docker" "start" "-a" "6641f2527dc335df420e852f82a958e32a5aa48031e9f4ce9e55fb0e51d1d04a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:241:14
[INFO] [stdout]     |
[INFO] [stdout] 241 |     Host(Box<host::HostError>),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn host::HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:275:14
[INFO] [stdout]     |
[INFO] [stdout] 275 |     Host(Box<host::HostError>),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn host::HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:287:44
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub fn as_host_error(&self) -> Option<&host::HostError> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn host::HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/host.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl HostError {
[INFO] [stdout]     |      ^^^^^^^^^ help: use `dyn`: `dyn HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/host.rs:121:45
[INFO] [stdout]     |
[INFO] [stdout] 121 |             unsafe { Some(&*(self as *const HostError as *const T)) }
[INFO] [stdout]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/host.rs:131:47
[INFO] [stdout]     |
[INFO] [stdout] 131 |             unsafe { Some(&mut *(self as *mut HostError as *mut T)) }
[INFO] [stdout]     |                                               ^^^^^^^^^ help: use `dyn`: `dyn HostError`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |     modules: HashMap<String, &'a ModuleImportResolver>,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:130:23
[INFO] [stdout]     |
[INFO] [stdout] 130 |         resolver: &'a ModuleImportResolver,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:139:77
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push_resolver<N: Into<String>>(&mut self, name: N, resolver: &'a ModuleImportResolver) {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/imports.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn resolver(&self, name: &str) -> Option<&ModuleImportResolver> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ModuleImportResolver`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling wabt-sys v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr] error: could not compile `serde_json`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_json --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.71/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=e9b4c2af0204d1f1 -C extra-filename=-e9b4c2af0204d1f1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern itoa=/opt/rustwide/target/debug/deps/libitoa-c9f794ae602378a7.rmeta --extern ryu=/opt/rustwide/target/debug/deps/libryu-8c106c7dece5fbd0.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e57a462b4d27402b.rmeta --cap-lints allow --cap-lints=forbid --cfg limb_width_64` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6641f2527dc335df420e852f82a958e32a5aa48031e9f4ce9e55fb0e51d1d04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6641f2527dc335df420e852f82a958e32a5aa48031e9f4ce9e55fb0e51d1d04a", kill_on_drop: false }`
[INFO] [stdout] 6641f2527dc335df420e852f82a958e32a5aa48031e9f4ce9e55fb0e51d1d04a