[INFO] fetching crate either 1.9.0...
[INFO] checking either-1.9.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate either 1.9.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate either 1.9.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate either 1.9.0
[INFO] finished tweaking crates.io crate either 1.9.0
[INFO] tweaked toml for crates.io crate either 1.9.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 786bfd2d184ddea6fef29755818f2b88c9df897cb4dd76e6ea3a119bd939ae8f
[INFO] running `Command { std: "docker" "start" "-a" "786bfd2d184ddea6fef29755818f2b88c9df897cb4dd76e6ea3a119bd939ae8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "786bfd2d184ddea6fef29755818f2b88c9df897cb4dd76e6ea3a119bd939ae8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786bfd2d184ddea6fef29755818f2b88c9df897cb4dd76e6ea3a119bd939ae8f", kill_on_drop: false }`
[INFO] [stdout] 786bfd2d184ddea6fef29755818f2b88c9df897cb4dd76e6ea3a119bd939ae8f
[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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7214fd443fe838d96a29d31bc829ed3931b36ab88cc8dfce197edc681c31a9e9
[INFO] running `Command { std: "docker" "start" "-a" "7214fd443fe838d96a29d31bc829ed3931b36ab88cc8dfce197edc681c31a9e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking either v1.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `AsMut` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | use core::convert::{AsMut, AsRef};
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/prelude/mod.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `AsMut` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 | use core::convert::{AsMut, AsRef};
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/prelude/mod.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `AsRef` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stdout] warning: the item `AsMut` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | use core::convert::{AsMut, AsRef};
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/prelude/mod.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `AsMut` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 | use core::convert::{AsMut, AsRef};
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/prelude/mod.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `AsRef` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::str::from_utf8` with a invalid literal always return an error
[INFO] [stdout]     --> src/lib.rs:1483:35
[INFO] [stdout]      |
[INFO] [stdout] 1482 |     let invalid_utf8 = b"\xff";
[INFO] [stdout]      |                        ------- the literal was valid UTF-8 up to the 0 bytes
[INFO] [stdout] 1483 |     let res = if let Err(error) = ::std::str::from_utf8(invalid_utf8) {
[INFO] [stdout]      |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(invalid_from_utf8)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.46s
[INFO] running `Command { std: "docker" "inspect" "7214fd443fe838d96a29d31bc829ed3931b36ab88cc8dfce197edc681c31a9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7214fd443fe838d96a29d31bc829ed3931b36ab88cc8dfce197edc681c31a9e9", kill_on_drop: false }`
[INFO] [stdout] 7214fd443fe838d96a29d31bc829ed3931b36ab88cc8dfce197edc681c31a9e9
[INFO] checking either-1.9.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-2
[INFO] extracting crate either 1.9.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate either 1.9.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate either 1.9.0
[INFO] finished tweaking crates.io crate either 1.9.0
[INFO] tweaked toml for crates.io crate either 1.9.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6539cc83eb666efdd14610acb8a382361564e8c8338207cb3993e7d167c564cf
[INFO] running `Command { std: "docker" "start" "-a" "6539cc83eb666efdd14610acb8a382361564e8c8338207cb3993e7d167c564cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6539cc83eb666efdd14610acb8a382361564e8c8338207cb3993e7d167c564cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6539cc83eb666efdd14610acb8a382361564e8c8338207cb3993e7d167c564cf", kill_on_drop: false }`
[INFO] [stdout] 6539cc83eb666efdd14610acb8a382361564e8c8338207cb3993e7d167c564cf
[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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de94400cc623443c6cf12abf7ac00088e418dcb4925a9055c76c17398e3966d9
[INFO] running `Command { std: "docker" "start" "-a" "de94400cc623443c6cf12abf7ac00088e418dcb4925a9055c76c17398e3966d9", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "de94400cc623443c6cf12abf7ac00088e418dcb4925a9055c76c17398e3966d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de94400cc623443c6cf12abf7ac00088e418dcb4925a9055c76c17398e3966d9", kill_on_drop: false }`
[INFO] [stdout] de94400cc623443c6cf12abf7ac00088e418dcb4925a9055c76c17398e3966d9