[INFO] fetching crate reservoir-sampling 0.5.1...
[INFO] testing reservoir-sampling-0.5.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate reservoir-sampling 0.5.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate reservoir-sampling 0.5.1
[INFO] finished tweaking crates.io crate reservoir-sampling 0.5.1
[INFO] tweaked toml for crates.io crate reservoir-sampling 0.5.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate reservoir-sampling 0.5.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate reservoir-sampling 0.5.1 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2
[INFO] running `Command { std: "docker" "start" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling reservoir-sampling v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stdout]   --> src/weighted/core.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stdout]    = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling reservoir-sampling v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stdout]   --> src/weighted/core.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stdout]    = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mean` is never used
[INFO] [stdout]  --> tests/common/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn mean(arr: &[usize]) -> usize {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> tests/common/mod.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn run (max_tests: usize, f: fn(Range<usize>, &mut [usize]) ) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stdout]   --> src/weighted/core.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stdout]    = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `Eq::assert_receiver_is_total_eq` should never be implemented by hand
[INFO] [stderr]   --> src/weighted/core.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn assert_receiver_is_total_eq(&self) {}
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this method was used to add checks to the `Eq` derive macro
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #152336 <https://github.com/rust-lang/rust/issues/152336>
[INFO] [stderr]    = note: `#[warn(internal_eq_trait_method_impls)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `reservoir-sampling` (lib) generated 1 warning
[INFO] [stderr] warning: function `mean` is never used
[INFO] [stderr]  --> tests/common/mod.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn mean(arr: &[usize]) -> usize {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> tests/common/mod.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn run (max_tests: usize, f: fn(Range<usize>, &mut [usize]) ) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `reservoir-sampling` (test "test_weighted") generated 2 warnings
[INFO] [stderr] warning: `reservoir-sampling` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/reservoir-sampling/b86fc3dd44f4af6d/out/reservoir_sampling-b86fc3dd44f4af6d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_unweighted.rs (/opt/rustwide/target/release/build/reservoir-sampling/38d471f3011dfb0d/out/test_unweighted-38d471f3011dfb0d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_r ... FAILED
[INFO] [stdout] test test_l ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_r stdout ----
[INFO] [stdout] [73, 28, 2, 3, 4, 79, 26, 38, 36, 29]
[INFO] [stdout] [26, 87, 28, 95, 38, 17, 16, 67, 74, 42]
[INFO] [stdout] [29, 64, 21, 60, 4, 5, 69, 59, 14, 9]
[INFO] [stdout] [91, 18, 99, 68, 66, 60, 94, 64, 8, 74]
[INFO] [stdout] [0, 39, 97, 67, 16, 30, 15, 91, 94, 60]
[INFO] [stdout] [0, 30, 17, 86, 85, 79, 77, 32, 53, 21]
[INFO] [stdout] [89, 1, 86, 12, 98, 5, 24, 34, 10, 66]
[INFO] [stdout] [60, 85, 42, 58, 70, 41, 87, 81, 46, 64]
[INFO] [stdout] [18, 1, 58, 3, 4, 84, 56, 11, 62, 48]
[INFO] [stdout] [27, 88, 46, 70, 22, 14, 86, 90, 82, 78]
[INFO] [stdout] 
[INFO] [stdout] thread 'test_r' (347) panicked at tests/common/mod.rs:32:9:
[INFO] [stdout] not yet implemented: Implement tests for randomness, currently panics so human can see results and verify that results look sort-of random
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c31f1c1ac21 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5c31f1c2f21a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5c31f1c1ee3c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5c31f1bf7086 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5c31f1c132b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5c31f1bac880 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5c31f1c13472 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5c31f1bf7164 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5c31f1befe49 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5c31f1bf7d3d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5c31f1c2f94c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5c31f1b9fa55 - test_unweighted[89d7855274a4849d]::common::unweighted::run
[INFO] [stdout]   12:     0x5c31f1b9fc6d - <test_unweighted[89d7855274a4849d]::test_r::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5c31f1b9fccb - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5c31f1bacea5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5c31f1ba6794 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5c31f1baff32 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5c31f1c1a47f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x767355965dfa - <unknown>
[INFO] [stdout]   19:     0x7673559f93d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- test_l stdout ----
[INFO] [stdout] [0, 1, 2, 50, 93, 5, 6, 7, 8, 21]
[INFO] [stdout] [0, 67, 2, 87, 4, 50, 6, 7, 8, 21]
[INFO] [stdout] [53, 34, 2, 3, 4, 94, 6, 73, 8, 9]
[INFO] [stdout] [0, 1, 63, 3, 4, 5, 6, 83, 8, 21]
[INFO] [stdout] [63, 1, 2, 3, 97, 34, 6, 79, 8, 9]
[INFO] [stdout] [79, 63, 2, 34, 21, 5, 6, 7, 48, 9]
[INFO] [stdout] [0, 63, 82, 3, 4, 5, 21, 48, 8, 9]
[INFO] [stdout] [0, 1, 2, 3, 4, 34, 21, 96, 48, 63]
[INFO] [stdout] [0, 1, 2, 85, 4, 5, 22, 7, 67, 51]
[INFO] [stdout] [34, 63, 2, 3, 97, 48, 6, 7, 8, 9]
[INFO] [stdout] 
[INFO] [stdout] thread 'test_l' (346) panicked at tests/common/mod.rs:32:9:
[INFO] [stdout] not yet implemented: Implement tests for randomness, currently panics so human can see results and verify that results look sort-of random
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c31f1c1ac21 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5c31f1c2f21a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5c31f1c1ee3c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5c31f1bf7086 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5c31f1c132b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5c31f1bac880 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5c31f1c13472 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5c31f1bf7164 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5c31f1befe49 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5c31f1bf7d3d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5c31f1c2f94c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5c31f1b9fa55 - test_unweighted[89d7855274a4849d]::common::unweighted::run
[INFO] [stdout]   12:     0x5c31f1b9fc5d - <test_unweighted[89d7855274a4849d]::test_l::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5c31f1b9fccb - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5c31f1bacea5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5c31f1ba6794 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5c31f1baff32 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5c31f1c1a47f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x767355965dfa - <unknown>
[INFO] [stdout]   19:     0x7673559f93d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_l
[INFO] [stdout]     test_r
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_unweighted`
[INFO] running `Command { std: "docker" "inspect" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2", kill_on_drop: false }`
[INFO] [stdout] 9c2a0ccb477f53a209c29c47550865575a845de841ff410f25b0845c579b3fd2
