[INFO] fetching crate stats-ci 0.1.0...
[INFO] checking stats-ci-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate stats-ci 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate stats-ci 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate stats-ci 0.1.0
[INFO] finished tweaking crates.io crate stats-ci 0.1.0
[INFO] tweaked toml for crates.io crate stats-ci 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate stats-ci 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nu-ansi-term v0.48.0
[INFO] [stderr]   Downloaded rand_seeder v0.2.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3838585fa2d46664760a0f8db2be0bea70586c20cf4eacaae3144040a048b55a
[INFO] running `Command { std: "docker" "start" "-a" "3838585fa2d46664760a0f8db2be0bea70586c20cf4eacaae3144040a048b55a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3838585fa2d46664760a0f8db2be0bea70586c20cf4eacaae3144040a048b55a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3838585fa2d46664760a0f8db2be0bea70586c20cf4eacaae3144040a048b55a", kill_on_drop: false }`
[INFO] [stdout] 3838585fa2d46664760a0f8db2be0bea70586c20cf4eacaae3144040a048b55a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f821278073efbad625ecd11587af97fc8c88eb8b42bf7f3b81a2014a230190f2
[INFO] running `Command { std: "docker" "start" "-a" "f821278073efbad625ecd11587af97fc8c88eb8b42bf7f3b81a2014a230190f2", kill_on_drop: false }`
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[INFO] [stderr]     Checking stats-ci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `StatisticsOps` is imported redundantly
[INFO] [stdout]    --> src/comparison.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | use crate::*;
[INFO] [stdout]     |     -------- the item `StatisticsOps` is already imported here
[INFO] [stdout] 129 | use error::*;
[INFO] [stdout] 130 | use mean::StatisticsOps;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `utils` is imported redundantly
[INFO] [stdout]   --> src/mean.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | use super::*;
[INFO] [stdout]    |     -------- the item `utils` is already imported here
[INFO] [stdout] 93 | use crate::utils;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `StatisticsOps` is imported redundantly
[INFO] [stdout]    --> src/comparison.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | use crate::*;
[INFO] [stdout]     |     -------- the item `StatisticsOps` is already imported here
[INFO] [stdout] 129 | use error::*;
[INFO] [stdout] 130 | use mean::StatisticsOps;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `utils` is imported redundantly
[INFO] [stdout]   --> src/mean.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | use super::*;
[INFO] [stdout]    |     -------- the item `utils` is already imported here
[INFO] [stdout] 93 | use crate::utils;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> examples/proportions.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{self, distributions::Distribution};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> examples/mean_median.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{self, distributions::Distribution};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `StatisticsOps` is imported redundantly
[INFO] [stdout]  --> examples/bench_mean_ci.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use stats_ci::mean::StatisticsOps;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use stats_ci::*;
[INFO] [stdout]   |     ----------- the item `StatisticsOps` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]  --> tests/compare_numpy.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use toml;
[INFO] [stdout]   |     ^^^^ the item `toml` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.20s
[INFO] running `Command { std: "docker" "inspect" "f821278073efbad625ecd11587af97fc8c88eb8b42bf7f3b81a2014a230190f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f821278073efbad625ecd11587af97fc8c88eb8b42bf7f3b81a2014a230190f2", kill_on_drop: false }`
[INFO] [stdout] f821278073efbad625ecd11587af97fc8c88eb8b42bf7f3b81a2014a230190f2