[INFO] fetching crate stream_histogram 0.1.1...
[INFO] testing stream_histogram-0.1.1 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate stream_histogram 0.1.1 into /workspace/builds/worker-5-tc1/source
[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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stream_histogram 0.1.1 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding linked-list v0.0.3 (available: v0.1.0)
[INFO] [stderr]       Adding rand v0.5.6 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "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 fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded linked-list v0.0.3
[INFO] [stderr]   Downloaded cloudabi v0.0.3
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded rand v0.5.6
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25246e746625bd4bed2fd5070e70f85fb37fa12c080cd0dc19ed6a87dbb1e787
[INFO] running `Command { std: "docker" "start" "-a" "25246e746625bd4bed2fd5070e70f85fb37fa12c080cd0dc19ed6a87dbb1e787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25246e746625bd4bed2fd5070e70f85fb37fa12c080cd0dc19ed6a87dbb1e787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25246e746625bd4bed2fd5070e70f85fb37fa12c080cd0dc19ed6a87dbb1e787", kill_on_drop: false }`
[INFO] [stdout] 25246e746625bd4bed2fd5070e70f85fb37fa12c080cd0dc19ed6a87dbb1e787
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5b597d47afd71b966c49364fcd678cf600f07aedd770fd86dfa0d14fcec713d
[INFO] running `Command { std: "docker" "start" "-a" "a5b597d47afd71b966c49364fcd678cf600f07aedd770fd86dfa0d14fcec713d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[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` profile [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "a5b597d47afd71b966c49364fcd678cf600f07aedd770fd86dfa0d14fcec713d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b597d47afd71b966c49364fcd678cf600f07aedd770fd86dfa0d14fcec713d", kill_on_drop: false }`
[INFO] [stdout] a5b597d47afd71b966c49364fcd678cf600f07aedd770fd86dfa0d14fcec713d
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9f60a185cbdaab92ae59cb5e1da3f2d218919da8f21664ecd54344218e27708
[INFO] running `Command { std: "docker" "start" "-a" "f9f60a185cbdaab92ae59cb5e1da3f2d218919da8f21664ecd54344218e27708", kill_on_drop: false }`
[INFO] [stderr]    Compiling stream_histogram v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Distribution` and `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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "f9f60a185cbdaab92ae59cb5e1da3f2d218919da8f21664ecd54344218e27708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f60a185cbdaab92ae59cb5e1da3f2d218919da8f21664ecd54344218e27708", kill_on_drop: false }`
[INFO] [stdout] f9f60a185cbdaab92ae59cb5e1da3f2d218919da8f21664ecd54344218e27708
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e7109af3c84d9d712495463be3ea72459f85ba711112dc599b6105cdc7c843e
[INFO] running `Command { std: "docker" "start" "-a" "7e7109af3c84d9d712495463be3ea72459f85ba711112dc599b6105cdc7c843e", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Distribution` and `Normal`
[INFO] [stderr]    --> src/lib.rs:296:31
[INFO] [stderr]     |
[INFO] [stderr] 296 |     use rand::distributions::{Distribution, Normal};
[INFO] [stderr]     |                               ^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stream_histogram` (lib test) generated 1 warning (run `cargo fix --lib -p stream_histogram --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stream_histogram-443f4171982211c2)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_print ... ok
[INFO] [stdout] test tests::test_histogram ... ok
[INFO] [stdout] test tests::test_report ... ok
[INFO] [stderr]    Doc-tests stream_histogram
[INFO] [stdout] test tests::test_statistics_function ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[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::add (line 61) ... FAILED
[INFO] [stdout] test src/lib.rs - Histogram::new (line 34) ... 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] 252 | use crate::histogram::Histogram;
[INFO] [stdout]     |            ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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] 227 |  use crate::histogram::Histogram;
[INFO] [stdout]     |             ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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] 62 | use crate::histogram::Histogram;
[INFO] [stdout]    |            ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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] 35 | use crate::histogram::Histogram;
[INFO] [stdout]    |            ^^^^^^^^^ could not find `histogram` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "7e7109af3c84d9d712495463be3ea72459f85ba711112dc599b6105cdc7c843e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7109af3c84d9d712495463be3ea72459f85ba711112dc599b6105cdc7c843e", kill_on_drop: false }`
[INFO] [stdout] 7e7109af3c84d9d712495463be3ea72459f85ba711112dc599b6105cdc7c843e
