[INFO] fetching crate dakv_skiplist 0.1.3...
[INFO] checking dakv_skiplist-0.1.3 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate dakv_skiplist 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dakv_skiplist 0.1.3 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dakv_skiplist 0.1.3
[INFO] finished tweaking crates.io crate dakv_skiplist 0.1.3
[INFO] tweaked toml for crates.io crate dakv_skiplist 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 586a22071208429c245875da18b6d385505c85810e924a541911db7dbd21a7b2
[INFO] running `Command { std: "docker" "start" "-a" "586a22071208429c245875da18b6d385505c85810e924a541911db7dbd21a7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "586a22071208429c245875da18b6d385505c85810e924a541911db7dbd21a7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "586a22071208429c245875da18b6d385505c85810e924a541911db7dbd21a7b2", kill_on_drop: false }`
[INFO] [stdout] 586a22071208429c245875da18b6d385505c85810e924a541911db7dbd21a7b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 822d2af6b9652ecdb19e19ac5a5dd8d1d8f1d340cd7de46e10555bfa52cff06f
[INFO] running `Command { std: "docker" "start" "-a" "822d2af6b9652ecdb19e19ac5a5dd8d1d8f1d340cd7de46e10555bfa52cff06f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dakv_skiplist v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] error[E0107]: struct takes 3 generic arguments but 1 generic argument was supplied
[INFO] [stdout]   --> benches/bench.rs:5:17
[INFO] [stdout]    |
[INFO] [stdout] 5  |     let mut sl: SkipList<usize> = SkipList::default();
[INFO] [stdout]    |                 ^^^^^^^^ ----- supplied 1 generic argument
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 expected 3 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] note: struct defined here, with 3 generic parameters: `R`, `C`, `A`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/skiplist.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct SkipList<R, C, A>
[INFO] [stdout]    |            ^^^^^^^^ -  -  -
[INFO] [stdout] help: add missing generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 5  |     let mut sl: SkipList<usize, C, A> = SkipList::default();
[INFO] [stdout]    |                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `default` found for struct `SkipList` in the current scope
[INFO] [stdout]   --> benches/bench.rs:5:45
[INFO] [stdout]    |
[INFO] [stdout] 5  |     let mut sl: SkipList<usize> = SkipList::default();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `SkipList<_, _, _>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `SkipList<_, _, _>`, consider using `SkipList::<R, C, A>::new` which returns `SkipList<_, _, _>`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/skiplist.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn new(rnd: R, cmp: C, arena: A) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `usize: RandomGenerator` is not satisfied
[INFO] [stdout]   --> benches/bench.rs:5:17
[INFO] [stdout]    |
[INFO] [stdout] 5  |     let mut sl: SkipList<usize> = SkipList::default();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^ the trait `RandomGenerator` is not implemented for `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `RandomGenerator` is implemented for `dakv_skiplist::Random`
[INFO] [stdout] note: required by a bound in `SkipList`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/skiplist.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct SkipList<R, C, A>
[INFO] [stdout]    |            -------- required by a bound in this struct
[INFO] [stdout] 53 | where
[INFO] [stdout] 54 |     R: RandomGenerator,
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ required by this bound in `SkipList`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dakv_skiplist` (bench "bench") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "822d2af6b9652ecdb19e19ac5a5dd8d1d8f1d340cd7de46e10555bfa52cff06f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "822d2af6b9652ecdb19e19ac5a5dd8d1d8f1d340cd7de46e10555bfa52cff06f", kill_on_drop: false }`
[INFO] [stdout] 822d2af6b9652ecdb19e19ac5a5dd8d1d8f1d340cd7de46e10555bfa52cff06f
