[INFO] fetching crate scell 1.0.0...
[INFO] testing scell-1.0.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate scell 1.0.0 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate scell 1.0.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scell 1.0.0
[INFO] finished tweaking crates.io crate scell 1.0.0
[INFO] tweaked toml for crates.io crate scell 1.0.0 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3330da8f798d5723364e920b3c2d5b3c7ed43342a25a77bb4f994967cf293ff
[INFO] running `Command { std: "docker" "start" "-a" "d3330da8f798d5723364e920b3c2d5b3c7ed43342a25a77bb4f994967cf293ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3330da8f798d5723364e920b3c2d5b3c7ed43342a25a77bb4f994967cf293ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3330da8f798d5723364e920b3c2d5b3c7ed43342a25a77bb4f994967cf293ff", kill_on_drop: false }`
[INFO] [stdout] d3330da8f798d5723364e920b3c2d5b3c7ed43342a25a77bb4f994967cf293ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f12a245640a36d177d48a8cbd76db3297019aadcf64f5c2ac0b52b1097e69b
[INFO] running `Command { std: "docker" "start" "-a" "54f12a245640a36d177d48a8cbd76db3297019aadcf64f5c2ac0b52b1097e69b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling scell v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/checked.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]   --> src/lib.rs:28:50
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stdout]    |                                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `Command { std: "docker" "inspect" "54f12a245640a36d177d48a8cbd76db3297019aadcf64f5c2ac0b52b1097e69b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f12a245640a36d177d48a8cbd76db3297019aadcf64f5c2ac0b52b1097e69b", kill_on_drop: false }`
[INFO] [stdout] 54f12a245640a36d177d48a8cbd76db3297019aadcf64f5c2ac0b52b1097e69b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5c53e8f2a445b61d3c772b5bc855c7174444ed3fa896a85f3c7ed0049323c35
[INFO] running `Command { std: "docker" "start" "-a" "f5c53e8f2a445b61d3c772b5bc855c7174444ed3fa896a85f3c7ed0049323c35", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/checked.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scell v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]   --> src/lib.rs:28:50
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stdout]    |                                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/checked.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]   --> src/lib.rs:28:50
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stdout]    |                                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/scell-61c2016146d5d66b)
[INFO] running `Command { std: "docker" "inspect" "f5c53e8f2a445b61d3c772b5bc855c7174444ed3fa896a85f3c7ed0049323c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c53e8f2a445b61d3c772b5bc855c7174444ed3fa896a85f3c7ed0049323c35", kill_on_drop: false }`
[INFO] [stdout] f5c53e8f2a445b61d3c772b5bc855c7174444ed3fa896a85f3c7ed0049323c35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a350ae21a34476f65208e56fd2d2f2db73275a3f9304ed9423e77611fec5000f
[INFO] running `Command { std: "docker" "start" "-a" "a350ae21a34476f65208e56fd2d2f2db73275a3f9304ed9423e77611fec5000f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `Display`
[INFO] [stderr]  --> src/checked.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stderr]   |                           ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Pointer`
[INFO] [stderr]   --> src/lib.rs:28:50
[INFO] [stderr]    |
[INFO] [stderr] 28 | use std::fmt::{Formatter, Display, Debug, Error, Pointer};
[INFO] [stderr]    |                                                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `scell` (lib) generated 2 warnings
[INFO] [stderr] warning: `scell` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.53s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/scell-61c2016146d5d66b)
[INFO] [stderr]    Doc-tests scell
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a350ae21a34476f65208e56fd2d2f2db73275a3f9304ed9423e77611fec5000f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a350ae21a34476f65208e56fd2d2f2db73275a3f9304ed9423e77611fec5000f", kill_on_drop: false }`
[INFO] [stdout] a350ae21a34476f65208e56fd2d2f2db73275a3f9304ed9423e77611fec5000f