[INFO] fetching crate macron-collections 0.1.3...
[INFO] checking macron-collections-0.1.3 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate macron-collections 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate macron-collections 0.1.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate macron-collections 0.1.3
[INFO] tweaked toml for crates.io crate macron-collections 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate macron-collections 0.1.3 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate macron-collections 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macron-map v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4570270287e6fda28e10e9f7cc06daabbc114e166d89bbbab210c22a128cc4c
[INFO] running `Command { std: "docker" "start" "-a" "a4570270287e6fda28e10e9f7cc06daabbc114e166d89bbbab210c22a128cc4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4570270287e6fda28e10e9f7cc06daabbc114e166d89bbbab210c22a128cc4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4570270287e6fda28e10e9f7cc06daabbc114e166d89bbbab210c22a128cc4c", kill_on_drop: false }`
[INFO] [stdout] a4570270287e6fda28e10e9f7cc06daabbc114e166d89bbbab210c22a128cc4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf0bf3e2df650734991e4cece22d06738daf0b6b561a67f2fea7d56e2414a07f
[INFO] running `Command { std: "docker" "start" "-a" "cf0bf3e2df650734991e4cece22d06738daf0b6b561a67f2fea7d56e2414a07f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling macron-map v0.1.1
[INFO] [stderr]     Checking macron-collections v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `macron_map::map`
[INFO] [stdout]  --> src/btree_map.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use macron_map::map;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `macron_map::map`
[INFO] [stdout]  --> src/btree_map.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use macron_map::map;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `hash_map` is ambiguous
[INFO] [stdout]   --> tests/test_collections.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let map: HashMap<_, _> = hash_map! {
[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: `hash_map` could refer to a macro from prelude
[INFO] [stdout] note: `hash_map` could also refer to the macro imported here
[INFO] [stdout]   --> tests/test_collections.rs:1:39
[INFO] [stdout]    |
[INFO] [stdout]  1 | extern crate macron_collections;  use macron_collections::*;
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `hash_map` to disambiguate
[INFO] [stdout]    = help: or use `crate::hash_map` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `macron-collections` (test "test_collections") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cf0bf3e2df650734991e4cece22d06738daf0b6b561a67f2fea7d56e2414a07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0bf3e2df650734991e4cece22d06738daf0b6b561a67f2fea7d56e2414a07f", kill_on_drop: false }`
[INFO] [stdout] cf0bf3e2df650734991e4cece22d06738daf0b6b561a67f2fea7d56e2414a07f