[INFO] fetching crate tracelogging 1.2.1...
[INFO] checking tracelogging-1.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate tracelogging 1.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate tracelogging 1.2.1 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 crates.io crate tracelogging 1.2.1
[INFO] finished tweaking crates.io crate tracelogging 1.2.1
[INFO] tweaked toml for crates.io crate tracelogging 1.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate tracelogging 1.2.1 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 tracelogging_macros v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a15713d174c9c4fc0cf354ee5e16538edcb01bee7944bb93427d6504351de244
[INFO] running `Command { std: "docker" "start" "-a" "a15713d174c9c4fc0cf354ee5e16538edcb01bee7944bb93427d6504351de244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a15713d174c9c4fc0cf354ee5e16538edcb01bee7944bb93427d6504351de244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a15713d174c9c4fc0cf354ee5e16538edcb01bee7944bb93427d6504351de244", kill_on_drop: false }`
[INFO] [stdout] a15713d174c9c4fc0cf354ee5e16538edcb01bee7944bb93427d6504351de244
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0d9c03f1c5b1e470854802ff76cfd61b7140d553ec44891a720e3fd6fe99f254
[INFO] running `Command { std: "docker" "start" "-a" "0d9c03f1c5b1e470854802ff76cfd61b7140d553ec44891a720e3fd6fe99f254", kill_on_drop: false }`
[INFO] [stderr]    Compiling windows_x86_64_gnu v0.48.0
[INFO] [stderr]    Compiling tracelogging_macros v1.2.0
[INFO] [stderr]     Checking uuid v1.3.3
[INFO] [stderr]     Checking windows-targets v0.48.0
[INFO] [stderr]     Checking windows v0.48.0
[INFO] [stderr]     Checking tracelogging v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/guid.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/prelude/mod.rs:65:39
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/guid.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/prelude/mod.rs:65:39
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined 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 0.83s
[INFO] running `Command { std: "docker" "inspect" "0d9c03f1c5b1e470854802ff76cfd61b7140d553ec44891a720e3fd6fe99f254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9c03f1c5b1e470854802ff76cfd61b7140d553ec44891a720e3fd6fe99f254", kill_on_drop: false }`
[INFO] [stdout] 0d9c03f1c5b1e470854802ff76cfd61b7140d553ec44891a720e3fd6fe99f254
[INFO] checking tracelogging-1.2.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate tracelogging 1.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate tracelogging 1.2.1 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 crates.io crate tracelogging 1.2.1
[INFO] finished tweaking crates.io crate tracelogging 1.2.1
[INFO] tweaked toml for crates.io crate tracelogging 1.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate tracelogging 1.2.1 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8ce5531260dfc15b86f05f6098d97ffc8c1fa195adb23ca5e0f5489e83490821
[INFO] running `Command { std: "docker" "start" "-a" "8ce5531260dfc15b86f05f6098d97ffc8c1fa195adb23ca5e0f5489e83490821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ce5531260dfc15b86f05f6098d97ffc8c1fa195adb23ca5e0f5489e83490821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce5531260dfc15b86f05f6098d97ffc8c1fa195adb23ca5e0f5489e83490821", kill_on_drop: false }`
[INFO] [stdout] 8ce5531260dfc15b86f05f6098d97ffc8c1fa195adb23ca5e0f5489e83490821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a88c056a594d3f0eecc3b171728a7dd3a7232a6e4324b2b62c36d60115a7710f
[INFO] running `Command { std: "docker" "start" "-a" "a88c056a594d3f0eecc3b171728a7dd3a7232a6e4324b2b62c36d60115a7710f", kill_on_drop: false }`
[INFO] [stderr]    Compiling windows_x86_64_gnu v0.48.0
[INFO] [stderr]    Compiling tracelogging_macros v1.2.0
[INFO] [stderr]     Checking uuid v1.3.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracelogging_macros-1.2.0/src/parser.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 | /             match first_token {
[INFO] [stdout] 196 | |                 Some(TokenTree::Group(struct_group))
[INFO] [stdout] 197 | |                     if want_struct && struct_group.delimiter() == Delimiter::Brace =>
[INFO] [stdout] 198 | |                 {
[INFO] [stdout] ...   |
[INFO] [stdout] 255 | |                 }
[INFO] [stdout] 256 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking windows-targets v0.48.0
[INFO] [stderr]     Checking windows v0.48.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracelogging_macros` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a88c056a594d3f0eecc3b171728a7dd3a7232a6e4324b2b62c36d60115a7710f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a88c056a594d3f0eecc3b171728a7dd3a7232a6e4324b2b62c36d60115a7710f", kill_on_drop: false }`
[INFO] [stdout] a88c056a594d3f0eecc3b171728a7dd3a7232a6e4324b2b62c36d60115a7710f