[INFO] fetching crate math-ast 0.2.0...
[INFO] testing math-ast-0.2.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate math-ast 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate math-ast 0.2.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate math-ast 0.2.0
[INFO] finished tweaking crates.io crate math-ast 0.2.0
[INFO] tweaked toml for crates.io crate math-ast 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded factorial v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c879848f0d50d18d495c0dcafba4ee1408b27e9a5ed40c9170528ef0c837e8f
[INFO] running `Command { std: "docker" "start" "-a" "1c879848f0d50d18d495c0dcafba4ee1408b27e9a5ed40c9170528ef0c837e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c879848f0d50d18d495c0dcafba4ee1408b27e9a5ed40c9170528ef0c837e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c879848f0d50d18d495c0dcafba4ee1408b27e9a5ed40c9170528ef0c837e8f", kill_on_drop: false }`
[INFO] [stdout] 1c879848f0d50d18d495c0dcafba4ee1408b27e9a5ed40c9170528ef0c837e8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 375c575feb470d653502093d639fbbf9770dafca1019af32b35d03a4991f0b04
[INFO] running `Command { std: "docker" "start" "-a" "375c575feb470d653502093d639fbbf9770dafca1019af32b35d03a4991f0b04", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling factorial v0.2.1
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling math-ast v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `Command { std: "docker" "inspect" "375c575feb470d653502093d639fbbf9770dafca1019af32b35d03a4991f0b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375c575feb470d653502093d639fbbf9770dafca1019af32b35d03a4991f0b04", kill_on_drop: false }`
[INFO] [stdout] 375c575feb470d653502093d639fbbf9770dafca1019af32b35d03a4991f0b04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a52dcb969d215ea79a9d36766b3ce6b7056021748968675a9b1da5a6be0921ef
[INFO] running `Command { std: "docker" "start" "-a" "a52dcb969d215ea79a9d36766b3ce6b7056021748968675a9b1da5a6be0921ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling math-ast v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "a52dcb969d215ea79a9d36766b3ce6b7056021748968675a9b1da5a6be0921ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52dcb969d215ea79a9d36766b3ce6b7056021748968675a9b1da5a6be0921ef", kill_on_drop: false }`
[INFO] [stdout] a52dcb969d215ea79a9d36766b3ce6b7056021748968675a9b1da5a6be0921ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b02b25f9d1a5d0e72a47af352c6cfde275dd72c6b6bf20bbeed9ef2a9d05d2a9
[INFO] running `Command { std: "docker" "start" "-a" "b02b25f9d1a5d0e72a47af352c6cfde275dd72c6b6bf20bbeed9ef2a9d05d2a9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/math_ast-4c3d9b9eda0ecfc8)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests math-ast
[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" "b02b25f9d1a5d0e72a47af352c6cfde275dd72c6b6bf20bbeed9ef2a9d05d2a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02b25f9d1a5d0e72a47af352c6cfde275dd72c6b6bf20bbeed9ef2a9d05d2a9", kill_on_drop: false }`
[INFO] [stdout] b02b25f9d1a5d0e72a47af352c6cfde275dd72c6b6bf20bbeed9ef2a9d05d2a9