[INFO] fetching crate stream_histogram 0.1.1...
[INFO] testing stream_histogram-0.1.1 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate stream_histogram 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stream_histogram 0.1.1 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stream_histogram 0.1.1
[INFO] finished tweaking crates.io crate stream_histogram 0.1.1
[INFO] tweaked toml for crates.io crate stream_histogram 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linked-list v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17b9d52fb6ef3318dfdca0d2d830b2f1de3f07d30a1ad1eb717100bb418fffae
[INFO] running `Command { std: "docker" "start" "-a" "17b9d52fb6ef3318dfdca0d2d830b2f1de3f07d30a1ad1eb717100bb418fffae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17b9d52fb6ef3318dfdca0d2d830b2f1de3f07d30a1ad1eb717100bb418fffae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b9d52fb6ef3318dfdca0d2d830b2f1de3f07d30a1ad1eb717100bb418fffae", kill_on_drop: false }`
[INFO] [stdout] 17b9d52fb6ef3318dfdca0d2d830b2f1de3f07d30a1ad1eb717100bb418fffae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bfb184601862fd0a95b503d492c72f64dd9e72492ad1ea4ede145220bedb2ea
[INFO] running `Command { std: "docker" "start" "-a" "2bfb184601862fd0a95b503d492c72f64dd9e72492ad1ea4ede145220bedb2ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling linked-list v0.0.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling stream_histogram v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `Command { std: "docker" "inspect" "2bfb184601862fd0a95b503d492c72f64dd9e72492ad1ea4ede145220bedb2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bfb184601862fd0a95b503d492c72f64dd9e72492ad1ea4ede145220bedb2ea", kill_on_drop: false }`
[INFO] [stdout] 2bfb184601862fd0a95b503d492c72f64dd9e72492ad1ea4ede145220bedb2ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 605d35cf75bbf542efc43a1bd74997e6330e7cf5c9288bd8b9726b8512d074c7
[INFO] running `Command { std: "docker" "start" "-a" "605d35cf75bbf542efc43a1bd74997e6330e7cf5c9288bd8b9726b8512d074c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling stream_histogram v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Distribution`, `Normal`
[INFO] [stdout]    --> src/lib.rs:296:31
[INFO] [stdout]     |
[INFO] [stdout] 296 |     use rand::distributions::{Distribution, Normal};
[INFO] [stdout]     |                               ^^^^^^^^^^^^  ^^^^^^
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "605d35cf75bbf542efc43a1bd74997e6330e7cf5c9288bd8b9726b8512d074c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "605d35cf75bbf542efc43a1bd74997e6330e7cf5c9288bd8b9726b8512d074c7", kill_on_drop: false }`
[INFO] [stdout] 605d35cf75bbf542efc43a1bd74997e6330e7cf5c9288bd8b9726b8512d074c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aec93e987cdb69980bcd73a5f16bdc1f9c7650d3a3c7890441fad74b6dfd1420
[INFO] running `Command { std: "docker" "start" "-a" "aec93e987cdb69980bcd73a5f16bdc1f9c7650d3a3c7890441fad74b6dfd1420", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused imports: `Distribution`, `Normal`
[INFO] [stdout] running 4 tests
[INFO] [stderr]    --> src/lib.rs:296:31
[INFO] [stdout] test tests::test_histogram ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::test_print ... ok
[INFO] [stderr] 296 |     use rand::distributions::{Distribution, Normal};
[INFO] [stdout] test tests::test_statistics_function ... ok
[INFO] [stderr]     |                               ^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] test tests::test_report ... ok
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stream_histogram-536202a54ae7a4ce)
[INFO] [stderr]    Doc-tests stream_histogram
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - Histogram::report (line 251) ... FAILED
[INFO] [stdout] test src/lib.rs - Histogram::to_string (line 225) ... FAILED
[INFO] [stdout] test src/lib.rs - Histogram::new (line 34) ... FAILED
[INFO] [stdout] test src/lib.rs - Histogram::add (line 61) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Histogram::report (line 251) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `crate::histogram`
[INFO] [stdout]  --> src/lib.rs:252:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::histogram::Histogram;
[INFO] [stdout]   |            ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Histogram::to_string (line 225) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `crate::histogram`
[INFO] [stdout]  --> src/lib.rs:227:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |  use crate::histogram::Histogram;
[INFO] [stdout]   |             ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Histogram::new (line 34) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `crate::histogram`
[INFO] [stdout]  --> src/lib.rs:35:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::histogram::Histogram;
[INFO] [stdout]   |            ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Histogram::add (line 61) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `crate::histogram`
[INFO] [stdout]  --> src/lib.rs:62:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::histogram::Histogram;
[INFO] [stdout]   |            ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Histogram::add (line 61)
[INFO] [stdout]     src/lib.rs - Histogram::new (line 34)
[INFO] [stdout]     src/lib.rs - Histogram::report (line 251)
[INFO] [stdout]     src/lib.rs - Histogram::to_string (line 225)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "aec93e987cdb69980bcd73a5f16bdc1f9c7650d3a3c7890441fad74b6dfd1420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec93e987cdb69980bcd73a5f16bdc1f9c7650d3a3c7890441fad74b6dfd1420", kill_on_drop: false }`
[INFO] [stdout] aec93e987cdb69980bcd73a5f16bdc1f9c7650d3a3c7890441fad74b6dfd1420