[INFO] fetching crate rustc-hex 2.1.0...
[INFO] checking rustc-hex-2.1.0 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate rustc-hex 2.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rustc-hex 2.1.0 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc-hex 2.1.0
[INFO] finished tweaking crates.io crate rustc-hex 2.1.0
[INFO] tweaked toml for crates.io crate rustc-hex 2.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a19615667ca4c0d3165f7c603beb8293605f21e3f8fbc6b4a7ba07d8ee734115
[INFO] running `Command { std: "docker" "start" "-a" "a19615667ca4c0d3165f7c603beb8293605f21e3f8fbc6b4a7ba07d8ee734115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a19615667ca4c0d3165f7c603beb8293605f21e3f8fbc6b4a7ba07d8ee734115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a19615667ca4c0d3165f7c603beb8293605f21e3f8fbc6b4a7ba07d8ee734115", kill_on_drop: false }`
[INFO] [stdout] a19615667ca4c0d3165f7c603beb8293605f21e3f8fbc6b4a7ba07d8ee734115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0a89973f76ec70c8672d69062fc2500e4617048847b00887c2371c50ca1115c
[INFO] running `Command { std: "docker" "start" "-a" "d0a89973f76ec70c8672d69062fc2500e4617048847b00887c2371c50ca1115c", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-hex v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> benches/hex.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |         s.as_bytes().to_hex();
[INFO] [stdout]    |                      ^^^^^^ cannot infer type of the type parameter `T` declared on the method `to_hex`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `_: FromIterator<char>` found in the `alloc` crate:
[INFO] [stdout]            - impl FromIterator<char> for Box<str>;
[INFO] [stdout]            - impl FromIterator<char> for String;
[INFO] [stdout] note: required by a bound in `to_hex`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn to_hex<T: FromIterator<char>>(&self) -> T;
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^ required by this bound in `ToHex::to_hex`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 14 |         s.as_bytes().to_hex::<T>();
[INFO] [stdout]    |                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> benches/hex.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let sb = s.as_bytes().to_hex();
[INFO] [stdout]    |         ^^
[INFO] [stdout] 24 |     b.iter(|| {
[INFO] [stdout] 25 |         sb.from_hex().unwrap();
[INFO] [stdout]    |         -- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `sb` an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let sb: /* Type */ = s.as_bytes().to_hex();
[INFO] [stdout]    |           ++++++++++++
[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, E0283.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-hex` (bench "hex") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d0a89973f76ec70c8672d69062fc2500e4617048847b00887c2371c50ca1115c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a89973f76ec70c8672d69062fc2500e4617048847b00887c2371c50ca1115c", kill_on_drop: false }`
[INFO] [stdout] d0a89973f76ec70c8672d69062fc2500e4617048847b00887c2371c50ca1115c
[INFO] checking rustc-hex-2.1.0 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate rustc-hex 2.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate rustc-hex 2.1.0 on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc-hex 2.1.0
[INFO] finished tweaking crates.io crate rustc-hex 2.1.0
[INFO] tweaked toml for crates.io crate rustc-hex 2.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 370c9de9fdc9511cb0f10fbed3fa50100f2b2653c760a4d47b8eef7d06767168
[INFO] running `Command { std: "docker" "start" "-a" "370c9de9fdc9511cb0f10fbed3fa50100f2b2653c760a4d47b8eef7d06767168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "370c9de9fdc9511cb0f10fbed3fa50100f2b2653c760a4d47b8eef7d06767168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "370c9de9fdc9511cb0f10fbed3fa50100f2b2653c760a4d47b8eef7d06767168", kill_on_drop: false }`
[INFO] [stdout] 370c9de9fdc9511cb0f10fbed3fa50100f2b2653c760a4d47b8eef7d06767168
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3feb5aa03189ff2c18e8574f72953d4e9b3b87465177a27d198d544f4c1346a
[INFO] running `Command { std: "docker" "start" "-a" "f3feb5aa03189ff2c18e8574f72953d4e9b3b87465177a27d198d544f4c1346a", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "f3feb5aa03189ff2c18e8574f72953d4e9b3b87465177a27d198d544f4c1346a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3feb5aa03189ff2c18e8574f72953d4e9b3b87465177a27d198d544f4c1346a", kill_on_drop: false }`
[INFO] [stdout] f3feb5aa03189ff2c18e8574f72953d4e9b3b87465177a27d198d544f4c1346a