[INFO] cloning repository https://github.com/BlackJackX/json-parser-contract
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlackJackX/json-parser-contract" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlackJackX%2Fjson-parser-contract", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlackJackX%2Fjson-parser-contract'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5a4177d5da20333b576a8f8bbcfa14804187879
[INFO] checking BlackJackX/json-parser-contract against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlackJackX%2Fjson-parser-contract" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlackJackX/json-parser-contract on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] removed /workspace/builds/worker-7/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/BlackJackX/json-parser-contract
[INFO] finished tweaking git repo https://github.com/BlackJackX/json-parser-contract
[INFO] tweaked toml for git repo https://github.com/BlackJackX/json-parser-contract written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/BlackJackX/json-parser-contract already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny-keccak v1.5.0
[INFO] [stderr]   Downloaded fixed-hash v0.3.2
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded serde_derive v1.0.114
[INFO] [stderr]   Downloaded pwasm-abi-derive v0.2.3
[INFO] [stderr]   Downloaded serde_json v1.0.56
[INFO] [stderr]   Downloaded syn v1.0.34
[INFO] [stderr]   Downloaded wee_alloc v0.4.5
[INFO] [stderr]   Downloaded pwasm-libc v0.2.1
[INFO] [stderr]   Downloaded quote v0.6.13
[INFO] [stderr]   Downloaded syn v0.15.44
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 081cde945c1026319950414c3a0fdd532cd0d3772bb3685831991a26f9c13a39
[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" "081cde945c1026319950414c3a0fdd532cd0d3772bb3685831991a26f9c13a39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "081cde945c1026319950414c3a0fdd532cd0d3772bb3685831991a26f9c13a39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081cde945c1026319950414c3a0fdd532cd0d3772bb3685831991a26f9c13a39", kill_on_drop: false }`
[INFO] [stdout] 081cde945c1026319950414c3a0fdd532cd0d3772bb3685831991a26f9c13a39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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] a4cb985a1b46a83523f9d9fff73a3576f17f2a6aadbdb91bf2554ed496e956a7
[INFO] running `Command { std: "docker" "start" "-a" "a4cb985a1b46a83523f9d9fff73a3576f17f2a6aadbdb91bf2554ed496e956a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking very-simple-json-parser v0.1.0 (/opt/rustwide/workdir/very-simple-json-parser)
[INFO] [stderr]     Checking pwasm-libc v0.2.1
[INFO] [stderr]     Checking crunchy v0.2.2
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> very-simple-json-parser/src/lib.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let len = chars.len();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling fixed-hash v0.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking uint v0.5.0
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uint-0.5.0/src/uint.rs:157:71
[INFO] [stdout]     |
[INFO] [stdout] 157 |         uint_full_mul_reg!($name, $n_words, $self_expr, $other, |_, _| true);
[INFO] [stdout]     |                                                                             ^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uint-0.5.0/src/lib.rs:41:5
[INFO] [stdout]     |
[INFO] [stdout] 41  |     construct_uint!(U256, 4);
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `uint_full_mul_reg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uint-0.5.0/src/uint.rs:154:76
[INFO] [stdout]     |
[INFO] [stdout] 154 |         uint_full_mul_reg!($name, 8, $self_expr, $other, |a, b| a != 0 || b != 0);
[INFO] [stdout]     |                                                                                  ^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uint-0.5.0/src/lib.rs:42:5
[INFO] [stdout]     |
[INFO] [stdout] 42  |     construct_uint!(U512, 8);
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `uint_full_mul_reg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uint-0.5.0/src/uint.rs:157:71
[INFO] [stdout]     |
[INFO] [stdout] 157 |         uint_full_mul_reg!($name, $n_words, $self_expr, $other, |_, _| true);
[INFO] [stdout]     |                                                                             ^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uint-0.5.0/src/lib.rs:50:18
[INFO] [stdout]     |
[INFO] [stdout] 50  |             U512(uint_full_mul_reg!(U256, 4, self, other))
[INFO] [stdout]     |                  ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `uint_full_mul_reg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uint`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a4cb985a1b46a83523f9d9fff73a3576f17f2a6aadbdb91bf2554ed496e956a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4cb985a1b46a83523f9d9fff73a3576f17f2a6aadbdb91bf2554ed496e956a7", kill_on_drop: false }`
[INFO] [stdout] a4cb985a1b46a83523f9d9fff73a3576f17f2a6aadbdb91bf2554ed496e956a7