[INFO] fetching crate rstack-self 0.3.0...
[INFO] testing rstack-self-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rstack-self 0.3.0 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate rstack-self 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rstack-self 0.3.0
[INFO] finished tweaking crates.io crate rstack-self 0.3.0
[INFO] tweaked toml for crates.io crate rstack-self 0.3.0 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate crates.io crate rstack-self 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded quick-error v1.2.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded unwind-sys v0.1.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.5
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded dw-sys v0.1.0
[INFO] [stderr]   Downloaded unwind v0.3.0
[INFO] [stderr]   Downloaded foreign-types-macros v0.2.0
[INFO] [stderr]   Downloaded rstack v0.3.0
[INFO] [stderr]   Downloaded dw v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4fe5fde450930586994196f2fe2d33f17d1d63691a9430a2bb5c8cc124ca6e6
[INFO] running `Command { std: "docker" "start" "-a" "b4fe5fde450930586994196f2fe2d33f17d1d63691a9430a2bb5c8cc124ca6e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4fe5fde450930586994196f2fe2d33f17d1d63691a9430a2bb5c8cc124ca6e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4fe5fde450930586994196f2fe2d33f17d1d63691a9430a2bb5c8cc124ca6e6", kill_on_drop: false }`
[INFO] [stdout] b4fe5fde450930586994196f2fe2d33f17d1d63691a9430a2bb5c8cc124ca6e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e4605e885eb9863a243f87d32618f9970b81edd3890d2bba8814fa8b58da99d
[INFO] running `Command { std: "docker" "start" "-a" "7e4605e885eb9863a243f87d32618f9970b81edd3890d2bba8814fa8b58da99d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling foreign-types-shared v0.3.0
[INFO] [stderr]    Compiling unwind v0.3.0
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling unwind-sys v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling foreign-types-macros v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling foreign-types v0.5.0
[INFO] [stderr]    Compiling rstack v0.3.0
[INFO] [stderr]    Compiling rstack-self v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.22s
[INFO] running `Command { std: "docker" "inspect" "7e4605e885eb9863a243f87d32618f9970b81edd3890d2bba8814fa8b58da99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e4605e885eb9863a243f87d32618f9970b81edd3890d2bba8814fa8b58da99d", kill_on_drop: false }`
[INFO] [stdout] 7e4605e885eb9863a243f87d32618f9970b81edd3890d2bba8814fa8b58da99d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 500a7b883af7687e5bf473d345dc5588aefd2d07a3b1917aed274f6decccc92e
[INFO] running `Command { std: "docker" "start" "-a" "500a7b883af7687e5bf473d345dc5588aefd2d07a3b1917aed274f6decccc92e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling rstack-self v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "500a7b883af7687e5bf473d345dc5588aefd2d07a3b1917aed274f6decccc92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "500a7b883af7687e5bf473d345dc5588aefd2d07a3b1917aed274f6decccc92e", kill_on_drop: false }`
[INFO] [stdout] 500a7b883af7687e5bf473d345dc5588aefd2d07a3b1917aed274f6decccc92e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 380bf3d6daba350b0dc0a33092614bed3672be16564e251d9e86b7f3fb5680d8
[INFO] running `Command { std: "docker" "start" "-a" "380bf3d6daba350b0dc0a33092614bed3672be16564e251d9e86b7f3fb5680d8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rstack_self-3e9855b71cb67316)
[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 rstack-self
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "380bf3d6daba350b0dc0a33092614bed3672be16564e251d9e86b7f3fb5680d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "380bf3d6daba350b0dc0a33092614bed3672be16564e251d9e86b7f3fb5680d8", kill_on_drop: false }`
[INFO] [stdout] 380bf3d6daba350b0dc0a33092614bed3672be16564e251d9e86b7f3fb5680d8