[INFO] cloning repository https://github.com/mrLSD/reqrep-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrLSD/reqrep-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmrLSD%2Freqrep-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmrLSD%2Freqrep-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5eb06aefa94fdd2c9de1b44e3b05ab2d5f080ccb
[INFO] checking mrLSD/reqrep-rs against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmrLSD%2Freqrep-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrLSD/reqrep-rs 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/mrLSD/reqrep-rs
[INFO] finished tweaking git repo https://github.com/mrLSD/reqrep-rs
[INFO] tweaked toml for git repo https://github.com/mrLSD/reqrep-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mrLSD/reqrep-rs 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nanomsg-sys v0.6.2
[INFO] [stderr]   Downloaded serde-value v0.5.1
[INFO] [stderr]   Downloaded nanomsg v0.6.2
[INFO] [stderr]   Downloaded cmake v0.1.29
[INFO] [stderr]   Downloaded log4rs v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2faebb717e759c4ce544acf88cd37ee51a3851df1b8ca834b2c735a36b913bc4
[INFO] running `Command { std: "docker" "start" "-a" "2faebb717e759c4ce544acf88cd37ee51a3851df1b8ca834b2c735a36b913bc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2faebb717e759c4ce544acf88cd37ee51a3851df1b8ca834b2c735a36b913bc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2faebb717e759c4ce544acf88cd37ee51a3851df1b8ca834b2c735a36b913bc4", kill_on_drop: false }`
[INFO] [stdout] 2faebb717e759c4ce544acf88cd37ee51a3851df1b8ca834b2c735a36b913bc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] df19f36fc0c8cbe15143d245510565e30c40d3515f23d7286ef955bf9c92e7d1
[INFO] running `Command { std: "docker" "start" "-a" "df19f36fc0c8cbe15143d245510565e30c40d3515f23d7286ef955bf9c92e7d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]     Checking linked-hash-map v0.5.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking humantime v1.0.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling nanomsg-sys v0.6.2
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking nanomsg v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking serde-value v0.5.1
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking log4rs v0.8.0
[INFO] [stderr]     Checking reqrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `nanomsg` is imported redundantly
[INFO] [stdout]  --> src/reqrep.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nanomsg;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate nanomsg;
[INFO] [stdout]   | --------------------- the item `nanomsg` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `nanomsg` is imported redundantly
[INFO] [stdout]  --> src/reqrep.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nanomsg;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate nanomsg;
[INFO] [stdout]   | --------------------- the item `nanomsg` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "df19f36fc0c8cbe15143d245510565e30c40d3515f23d7286ef955bf9c92e7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df19f36fc0c8cbe15143d245510565e30c40d3515f23d7286ef955bf9c92e7d1", kill_on_drop: false }`
[INFO] [stdout] df19f36fc0c8cbe15143d245510565e30c40d3515f23d7286ef955bf9c92e7d1
[INFO] checking mrLSD/reqrep-rs against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmrLSD%2Freqrep-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrLSD/reqrep-rs 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/mrLSD/reqrep-rs
[INFO] finished tweaking git repo https://github.com/mrLSD/reqrep-rs
[INFO] tweaked toml for git repo https://github.com/mrLSD/reqrep-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mrLSD/reqrep-rs 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 12616d3bab36b3eec243f9a1b8856193e3a783d9fcfa6e679ef746ddfdb3d1b4
[INFO] running `Command { std: "docker" "start" "-a" "12616d3bab36b3eec243f9a1b8856193e3a783d9fcfa6e679ef746ddfdb3d1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12616d3bab36b3eec243f9a1b8856193e3a783d9fcfa6e679ef746ddfdb3d1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12616d3bab36b3eec243f9a1b8856193e3a783d9fcfa6e679ef746ddfdb3d1b4", kill_on_drop: false }`
[INFO] [stdout] 12616d3bab36b3eec243f9a1b8856193e3a783d9fcfa6e679ef746ddfdb3d1b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6b39ecdc321db98f6a642a2c57730978050d856d89de4132795729672931004a
[INFO] running `Command { std: "docker" "start" "-a" "6b39ecdc321db98f6a642a2c57730978050d856d89de4132795729672931004a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking humantime v1.0.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling nanomsg-sys v0.6.2
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking nanomsg v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking serde-value v0.5.1
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking log4rs v0.8.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/delete.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/log4rs-0.8.0/src/encode/json.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `log4rs` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "6b39ecdc321db98f6a642a2c57730978050d856d89de4132795729672931004a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b39ecdc321db98f6a642a2c57730978050d856d89de4132795729672931004a", kill_on_drop: false }`
[INFO] [stdout] 6b39ecdc321db98f6a642a2c57730978050d856d89de4132795729672931004a