[INFO] fetching crate mdmath_ia 0.1.0...
[INFO] checking mdmath_ia-0.1.0 against try#724e78794d2cf06eef820a24c9a4608d63435e1d for pr-149145
[INFO] extracting crate mdmath_ia 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mdmath_ia 0.1.0
[INFO] finished tweaking crates.io crate mdmath_ia 0.1.0
[INFO] tweaked toml for crates.io crate mdmath_ia 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdmath_ia 0.1.0 on toolchain 724e78794d2cf06eef820a24c9a4608d63435e1d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 114 packages to latest compatible versions
[INFO] [stderr]       Adding either v1.6.1 (available: v1.15.0)
[INFO] [stderr]       Adding former v2.9.0 (available: v2.39.0)
[INFO] [stderr]       Adding former_meta v2.9.0 (available: v2.37.0)
[INFO] [stderr]       Adding former_types v2.8.0 (available: v2.33.0)
[INFO] [stderr]       Adding mod_interface v0.25.0 (available: v0.54.0)
[INFO] [stderr]       Adding test_tools v0.10.0 (available: v0.16.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e658dd61ee6fc51ff9303c8d15a33c9ad922e4f2aa9c301b33a088066aa1fb5
[INFO] running `Command { std: "docker" "start" "-a" "1e658dd61ee6fc51ff9303c8d15a33c9ad922e4f2aa9c301b33a088066aa1fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e658dd61ee6fc51ff9303c8d15a33c9ad922e4f2aa9c301b33a088066aa1fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e658dd61ee6fc51ff9303c8d15a33c9ad922e4f2aa9c301b33a088066aa1fb5", kill_on_drop: false }`
[INFO] [stdout] 1e658dd61ee6fc51ff9303c8d15a33c9ad922e4f2aa9c301b33a088066aa1fb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c333ec2f09f081985e696b70673304f47c4a3444365596358b58bc32111d812e
[INFO] running `Command { std: "docker" "start" "-a" "c333ec2f09f081985e696b70673304f47c4a3444365596358b58bc32111d812e", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling clone_dyn_types v0.23.0
[INFO] [stderr]    Compiling collection_tools v0.12.0
[INFO] [stderr]    Compiling interval_adapter v0.24.0
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling derive_tools v0.29.0
[INFO] [stderr]    Compiling derive_tools v0.28.0
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]     Checking os_pipe v1.2.3
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling inspect_type v0.11.0
[INFO] [stderr]     Checking winnow v0.7.14
[INFO] [stderr]    Compiling target-triple v1.0.0
[INFO] [stderr]    Compiling former_types v2.8.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking error_tools v0.17.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling test_tools v0.10.0
[INFO] [stderr]     Checking for_each v0.9.0
[INFO] [stdout] error[E0659]: `thiserror` is ambiguous
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/error_tools-0.17.0/src/typed.rs:59:11
[INFO] [stdout]    |
[INFO] [stdout] 59 |   pub use thiserror;
[INFO] [stdout]    |           ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `thiserror` could refer to a crate passed with `--extern`
[INFO] [stdout]    = help: use `::thiserror` to refer to this crate unambiguously
[INFO] [stdout] note: `thiserror` could also refer to the crate imported here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/error_tools-0.17.0/src/typed.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |   use super::*;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `thiserror` to disambiguate
[INFO] [stdout]    = help: or use `self::thiserror` to refer to this crate unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking implements v0.9.0
[INFO] [stderr]     Checking is_slice v0.10.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr]     Checking literally v0.1.3
[INFO] [stderr] error: could not compile `error_tools` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c333ec2f09f081985e696b70673304f47c4a3444365596358b58bc32111d812e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c333ec2f09f081985e696b70673304f47c4a3444365596358b58bc32111d812e", kill_on_drop: false }`
[INFO] [stdout] c333ec2f09f081985e696b70673304f47c4a3444365596358b58bc32111d812e