[INFO] fetching crate abstractgraph 0.1.4...
[INFO] checking abstractgraph-0.1.4 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate abstractgraph 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate abstractgraph 0.1.4 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate abstractgraph 0.1.4
[INFO] finished tweaking crates.io crate abstractgraph 0.1.4
[INFO] tweaked toml for crates.io crate abstractgraph 0.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages
[INFO] [stderr]       Adding indexmap v0.4.1 (latest: v2.2.6)
[INFO] [stderr]       Adding num v0.2.1 (latest: v0.4.1)
[INFO] [stderr]       Adding num-bigint v0.2.6 (latest: v0.4.4)
[INFO] [stderr]       Adding num-complex v0.2.4 (latest: v0.4.5)
[INFO] [stderr]       Adding num-rational v0.2.4 (latest: v0.4.1)
[INFO] [stderr]       Adding priority-queue v0.5.4 (latest: v2.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.2.1
[INFO] [stderr]   Downloaded indexmap v0.4.1
[INFO] [stderr]   Downloaded priority-queue v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5d206d1b09ffcdbf62e52ee9dd8606b280eceee97d11b034c7d7fc45fbd219b
[INFO] running `Command { std: "docker" "start" "-a" "a5d206d1b09ffcdbf62e52ee9dd8606b280eceee97d11b034c7d7fc45fbd219b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5d206d1b09ffcdbf62e52ee9dd8606b280eceee97d11b034c7d7fc45fbd219b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d206d1b09ffcdbf62e52ee9dd8606b280eceee97d11b034c7d7fc45fbd219b", kill_on_drop: false }`
[INFO] [stdout] a5d206d1b09ffcdbf62e52ee9dd8606b280eceee97d11b034c7d7fc45fbd219b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f9afa3e7dc3e014c78111133fa08f2a55d700703ed668290355851de3017477
[INFO] running `Command { std: "docker" "start" "-a" "7f9afa3e7dc3e014c78111133fa08f2a55d700703ed668290355851de3017477", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking priority-queue v0.5.4
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking abstractgraph v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]  --> src/weight.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num;
[INFO] [stdout]   |     ^^^ the item `num` 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 `priority_queue` is imported redundantly
[INFO] [stdout]  --> src/algorithms/dijkstra.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use priority_queue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `priority_queue` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]  --> src/weight.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num;
[INFO] [stdout]   |     ^^^ the item `num` 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 `priority_queue` is imported redundantly
[INFO] [stdout]  --> src/algorithms/dijkstra.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use priority_queue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `priority_queue` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/chain.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` 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 `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/chain.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` 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 `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/chain.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/adjacency.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate abstractgraph;
[INFO] [stdout]   | --------------------------- the item `abstractgraph` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/chain.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` 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 `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/grid.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/grid.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/full.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/adjacency.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate abstractgraph;
[INFO] [stdout]   | --------------------------- the item `abstractgraph` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/grid.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/grid.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/adjacency.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate abstractgraph;
[INFO] [stdout]   | --------------------------- the item `abstractgraph` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/trivial.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/trivial.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/trivial.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `abstractgraph` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/parallel.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/adjacency.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate abstractgraph;
[INFO] [stdout]   | --------------------------- the item `abstractgraph` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abstractgraph` is imported redundantly
[INFO] [stdout]  --> tests/graphs/trivial.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use abstractgraph;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/adjacency.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate abstractgraph;
[INFO] [stdout]   | --------------------------- the item `abstractgraph` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/dijkstra.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut last_distance: W;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "7f9afa3e7dc3e014c78111133fa08f2a55d700703ed668290355851de3017477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f9afa3e7dc3e014c78111133fa08f2a55d700703ed668290355851de3017477", kill_on_drop: false }`
[INFO] [stdout] 7f9afa3e7dc3e014c78111133fa08f2a55d700703ed668290355851de3017477
