[INFO] cloning repository https://github.com/KaleBBuR/RJSON
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaleBBuR/RJSON" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaleBBuR%2FRJSON", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaleBBuR%2FRJSON'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0b7bd182ebb879506ae9c9214522f4128642ff4
[INFO] checking KaleBBuR/RJSON against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaleBBuR%2FRJSON" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaleBBuR/RJSON on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KaleBBuR/RJSON
[INFO] finished tweaking git repo https://github.com/KaleBBuR/RJSON
[INFO] tweaked toml for git repo https://github.com/KaleBBuR/RJSON written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KaleBBuR/RJSON already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf8109ba8e8ca7866f8d32753393a09db9bacb269d8ff1f33ed304ebc5ec2a00
[INFO] running `Command { std: "docker" "start" "-a" "cf8109ba8e8ca7866f8d32753393a09db9bacb269d8ff1f33ed304ebc5ec2a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf8109ba8e8ca7866f8d32753393a09db9bacb269d8ff1f33ed304ebc5ec2a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf8109ba8e8ca7866f8d32753393a09db9bacb269d8ff1f33ed304ebc5ec2a00", kill_on_drop: false }`
[INFO] [stdout] cf8109ba8e8ca7866f8d32753393a09db9bacb269d8ff1f33ed304ebc5ec2a00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acdff75ad5dc657486a838728c541b8ddcd881bc32a481166f4d86dd18a15aac
[INFO] running `Command { std: "docker" "start" "-a" "acdff75ad5dc657486a838728c541b8ddcd881bc32a481166f4d86dd18a15aac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking serde_syntax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.11s
[INFO] running `Command { std: "docker" "inspect" "acdff75ad5dc657486a838728c541b8ddcd881bc32a481166f4d86dd18a15aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acdff75ad5dc657486a838728c541b8ddcd881bc32a481166f4d86dd18a15aac", kill_on_drop: false }`
[INFO] [stdout] acdff75ad5dc657486a838728c541b8ddcd881bc32a481166f4d86dd18a15aac
[INFO] checking KaleBBuR/RJSON against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaleBBuR%2FRJSON" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaleBBuR/RJSON on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KaleBBuR/RJSON
[INFO] finished tweaking git repo https://github.com/KaleBBuR/RJSON
[INFO] tweaked toml for git repo https://github.com/KaleBBuR/RJSON written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KaleBBuR/RJSON already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c70fbe67bb43449ae8f6d3bb51745fc08dc7c065eeaa4a48fe238b74424140b
[INFO] running `Command { std: "docker" "start" "-a" "8c70fbe67bb43449ae8f6d3bb51745fc08dc7c065eeaa4a48fe238b74424140b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c70fbe67bb43449ae8f6d3bb51745fc08dc7c065eeaa4a48fe238b74424140b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c70fbe67bb43449ae8f6d3bb51745fc08dc7c065eeaa4a48fe238b74424140b", kill_on_drop: false }`
[INFO] [stdout] 8c70fbe67bb43449ae8f6d3bb51745fc08dc7c065eeaa4a48fe238b74424140b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0a9b8ed4f16613e315180370d3535159921b360854269a0459d08913d9b7203
[INFO] running `Command { std: "docker" "start" "-a" "d0a9b8ed4f16613e315180370d3535159921b360854269a0459d08913d9b7203", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking serde_syntax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/main.rs:968:13
[INFO] [stdout]     |
[INFO] [stdout] 968 | /             match float_num_result {
[INFO] [stdout] 969 | |                 Ok(float) => return Ok(Token::Float(float)),
[INFO] [stdout] 970 | |                 Err(msg) => return Err(TokenError::Msg(
[INFO] [stdout] 971 | |                     format!(
[INFO] [stdout] ...   |
[INFO] [stdout] 974 | |                 ))
[INFO] [stdout] 975 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/main.rs:968:13
[INFO] [stdout]     |
[INFO] [stdout] 968 | /             match float_num_result {
[INFO] [stdout] 969 | |                 Ok(float) => return Ok(Token::Float(float)),
[INFO] [stdout] 970 | |                 Err(msg) => return Err(TokenError::Msg(
[INFO] [stdout] 971 | |                     format!(
[INFO] [stdout] ...   |
[INFO] [stdout] 974 | |                 ))
[INFO] [stdout] 975 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]     --> src/main.rs:1033:29
[INFO] [stdout]      |
[INFO] [stdout] 1033 | / ...                   match character {
[INFO] [stdout] 1034 | | ...                       '#' => {
[INFO] [stdout] 1035 | | ...                           all_match = true;
[INFO] [stdout] 1036 | | ...                           self.next();
[INFO] [stdout] ...    |
[INFO] [stdout] 1039 | | ...                       _ => break
[INFO] [stdout] 1040 | | ...                   }
[INFO] [stdout]      | |_______________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]     --> src/main.rs:1033:29
[INFO] [stdout]      |
[INFO] [stdout] 1033 | / ...                   match character {
[INFO] [stdout] 1034 | | ...                       '#' => {
[INFO] [stdout] 1035 | | ...                           all_match = true;
[INFO] [stdout] 1036 | | ...                           self.next();
[INFO] [stdout] ...    |
[INFO] [stdout] 1039 | | ...                       _ => break
[INFO] [stdout] 1040 | | ...                   }
[INFO] [stdout]      | |_______________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0284.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0284.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_syntax` (bin "serde_syntax" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serde_syntax` (bin "serde_syntax") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d0a9b8ed4f16613e315180370d3535159921b360854269a0459d08913d9b7203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a9b8ed4f16613e315180370d3535159921b360854269a0459d08913d9b7203", kill_on_drop: false }`
[INFO] [stdout] d0a9b8ed4f16613e315180370d3535159921b360854269a0459d08913d9b7203