[INFO] fetching crate main_error 0.1.2...
[INFO] testing main_error-0.1.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate main_error 0.1.2 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate main_error 0.1.2 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 main_error 0.1.2
[INFO] finished tweaking crates.io crate main_error 0.1.2
[INFO] tweaked toml for crates.io crate main_error 0.1.2 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate crates.io crate main_error 0.1.2 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 4dcae8d17bf985817c3f54534a98348069ce83cf3a8694f69fefe6ba4263b462
[INFO] running `Command { std: "docker" "start" "-a" "4dcae8d17bf985817c3f54534a98348069ce83cf3a8694f69fefe6ba4263b462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dcae8d17bf985817c3f54534a98348069ce83cf3a8694f69fefe6ba4263b462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dcae8d17bf985817c3f54534a98348069ce83cf3a8694f69fefe6ba4263b462", kill_on_drop: false }`
[INFO] [stdout] 4dcae8d17bf985817c3f54534a98348069ce83cf3a8694f69fefe6ba4263b462
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] ecd8a3c23bc5c3f3ed7327d9e7c8bc7289027def65f47c4bcb472af27018bf4c
[INFO] running `Command { std: "docker" "start" "-a" "ecd8a3c23bc5c3f3ed7327d9e7c8bc7289027def65f47c4bcb472af27018bf4c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling main_error v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "ecd8a3c23bc5c3f3ed7327d9e7c8bc7289027def65f47c4bcb472af27018bf4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecd8a3c23bc5c3f3ed7327d9e7c8bc7289027def65f47c4bcb472af27018bf4c", kill_on_drop: false }`
[INFO] [stdout] ecd8a3c23bc5c3f3ed7327d9e7c8bc7289027def65f47c4bcb472af27018bf4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] b81e0b2d7f0ac35b8d3c9a57770c555e37b41c69f2210a33b4f0d34b74ad4902
[INFO] running `Command { std: "docker" "start" "-a" "b81e0b2d7f0ac35b8d3c9a57770c555e37b41c69f2210a33b4f0d34b74ad4902", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling main_error v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.72s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/main_error-8a5c43c373070403)
[INFO] running `Command { std: "docker" "inspect" "b81e0b2d7f0ac35b8d3c9a57770c555e37b41c69f2210a33b4f0d34b74ad4902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b81e0b2d7f0ac35b8d3c9a57770c555e37b41c69f2210a33b4f0d34b74ad4902", kill_on_drop: false }`
[INFO] [stdout] b81e0b2d7f0ac35b8d3c9a57770c555e37b41c69f2210a33b4f0d34b74ad4902
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] acfb5ab8c9731df00b7623fb84bbdadb823b9b81d40ab1b01be1bd53849436c4
[INFO] running `Command { std: "docker" "start" "-a" "acfb5ab8c9731df00b7623fb84bbdadb823b9b81d40ab1b01be1bd53849436c4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/main_error-8a5c43c373070403)
[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] [stderr]    Doc-tests main_error
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - MainError (line 105) ... ok
[INFO] [stdout] test src/lib.rs - MainError (line 119) ... ok
[INFO] [stdout] test src/lib.rs - MainError (line 111) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "acfb5ab8c9731df00b7623fb84bbdadb823b9b81d40ab1b01be1bd53849436c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acfb5ab8c9731df00b7623fb84bbdadb823b9b81d40ab1b01be1bd53849436c4", kill_on_drop: false }`
[INFO] [stdout] acfb5ab8c9731df00b7623fb84bbdadb823b9b81d40ab1b01be1bd53849436c4