[INFO] fetching crate merkle-distributor 0.2.3...
[INFO] testing merkle-distributor-0.2.3 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate merkle-distributor 0.2.3 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate merkle-distributor 0.2.3 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkle-distributor 0.2.3
[INFO] finished tweaking crates.io crate merkle-distributor 0.2.3
[INFO] tweaked toml for crates.io crate merkle-distributor 0.2.3 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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" "+62efba8a050c64249dab942951bb28f710208bc8" "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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d0e41570d283b866cd61dd1d4373b13af62f2ddc4e9afa38500795d6d58c209
[INFO] running `Command { std: "docker" "start" "-a" "5d0e41570d283b866cd61dd1d4373b13af62f2ddc4e9afa38500795d6d58c209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d0e41570d283b866cd61dd1d4373b13af62f2ddc4e9afa38500795d6d58c209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0e41570d283b866cd61dd1d4373b13af62f2ddc4e9afa38500795d6d58c209", kill_on_drop: false }`
[INFO] [stdout] 5d0e41570d283b866cd61dd1d4373b13af62f2ddc4e9afa38500795d6d58c209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01bef97f7af2175fdd5aefeb3c78f87aa04722c8d25c43741670bde2b511959a
[INFO] running `Command { std: "docker" "start" "-a" "01bef97f7af2175fdd5aefeb3c78f87aa04722c8d25c43741670bde2b511959a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling merkle-distributor v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.72s
[INFO] running `Command { std: "docker" "inspect" "01bef97f7af2175fdd5aefeb3c78f87aa04722c8d25c43741670bde2b511959a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01bef97f7af2175fdd5aefeb3c78f87aa04722c8d25c43741670bde2b511959a", kill_on_drop: false }`
[INFO] [stdout] 01bef97f7af2175fdd5aefeb3c78f87aa04722c8d25c43741670bde2b511959a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6e81bd0393373a99a1c5fd501679585f11217f355cd21bd80d74afaf91b2339
[INFO] running `Command { std: "docker" "start" "-a" "e6e81bd0393373a99a1c5fd501679585f11217f355cd21bd80d74afaf91b2339", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle-distributor v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "e6e81bd0393373a99a1c5fd501679585f11217f355cd21bd80d74afaf91b2339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e81bd0393373a99a1c5fd501679585f11217f355cd21bd80d74afaf91b2339", kill_on_drop: false }`
[INFO] [stdout] e6e81bd0393373a99a1c5fd501679585f11217f355cd21bd80d74afaf91b2339
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e96ed183e2a4341da5f913e7188ca7756f803466262d17c927c9c795fe818150
[INFO] running `Command { std: "docker" "start" "-a" "e96ed183e2a4341da5f913e7188ca7756f803466262d17c927c9c795fe818150", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merkle_distributor-44b1046efbaec7fb)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkle_distributor
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_id ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error[E0659]: `merkle_distributor` is ambiguous
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:13:9
[INFO] [stderr]     |
[INFO] [stderr] 13  | pub mod merkle_distributor {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^ ambiguous name
[INFO] [stderr]     |
[INFO] [stderr]     = note: ambiguous because of multiple potential import sources
[INFO] [stderr]     = note: `merkle_distributor` could refer to a crate passed with `--extern`
[INFO] [stderr]     = help: use `::merkle_distributor` to refer to this crate unambiguously
[INFO] [stderr] note: `merkle_distributor` could also refer to the module defined here
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:13:1
[INFO] [stderr]     |
[INFO] [stderr] 13  | / pub mod merkle_distributor {
[INFO] [stderr] 14  | |     use super::*;
[INFO] [stderr] 15  | |
[INFO] [stderr] 16  | |     /// Creates a new [MerkleDistributor].
[INFO] [stderr] ...   |
[INFO] [stderr] 126 | |     }
[INFO] [stderr] 127 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     = help: use `crate::merkle_distributor` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "e96ed183e2a4341da5f913e7188ca7756f803466262d17c927c9c795fe818150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96ed183e2a4341da5f913e7188ca7756f803466262d17c927c9c795fe818150", kill_on_drop: false }`
[INFO] [stdout] e96ed183e2a4341da5f913e7188ca7756f803466262d17c927c9c795fe818150