[INFO] fetching crate sortedvec 0.5.0...
[INFO] checking sortedvec-0.5.0 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate sortedvec 0.5.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sortedvec 0.5.0 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sortedvec 0.5.0
[INFO] finished tweaking crates.io crate sortedvec 0.5.0
[INFO] tweaked toml for crates.io crate sortedvec 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0f7627a41f6ae5d6e652da1e33a1bd3691d7b9ca8fc2754eccfa9a40a97feeb0
[INFO] running `Command { std: "docker" "start" "-a" "0f7627a41f6ae5d6e652da1e33a1bd3691d7b9ca8fc2754eccfa9a40a97feeb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f7627a41f6ae5d6e652da1e33a1bd3691d7b9ca8fc2754eccfa9a40a97feeb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f7627a41f6ae5d6e652da1e33a1bd3691d7b9ca8fc2754eccfa9a40a97feeb0", kill_on_drop: false }`
[INFO] [stdout] 0f7627a41f6ae5d6e652da1e33a1bd3691d7b9ca8fc2754eccfa9a40a97feeb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96b6cc4dcc5a78f93ef266243059ca3143d8bd6a58e5246bf580ee4674b0ff72
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "96b6cc4dcc5a78f93ef266243059ca3143d8bd6a58e5246bf580ee4674b0ff72", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking sortedvec v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stdout] warning: multiple patterns covering the same range
[INFO] [stdout]   --> benches/dna.rs:74:40
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 (Nucleobase::Cytosine, 0..=80) => Nucleobase::Adenine,
[INFO] [stdout]    |                                        ------ this range overlaps on `80_u8`
[INFO] [stdout] 74 |                 (Nucleobase::Cytosine, 80..=100) => Nucleobase::Cytosine,
[INFO] [stdout]    |                                        ^^^^^^^^ overlapping patterns
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(overlapping_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> benches/dna.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                   let mut rng = SmallRng::from_seed(SEED);
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 158 | / gen_bench! {
[INFO] [stdout] 159 | |     dna_e1;10,
[INFO] [stdout] 160 | |     dna_e2;100,
[INFO] [stdout] 161 | |     dna_e3;1_000,
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |     dna_e6;1_000_000
[INFO] [stdout] 165 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> benches/dna.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                   let mut rng = SmallRng::from_seed(SEED);
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 158 | / gen_bench! {
[INFO] [stdout] 159 | |     dna_e1;10,
[INFO] [stdout] 160 | |     dna_e2;100,
[INFO] [stdout] 161 | |     dna_e3;1_000,
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |     dna_e6;1_000_000
[INFO] [stdout] 165 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> benches/dna.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 |                   let mut rng = SmallRng::from_seed(SEED);
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 158 | / gen_bench! {
[INFO] [stdout] 159 | |     dna_e1;10,
[INFO] [stdout] 160 | |     dna_e2;100,
[INFO] [stdout] 161 | |     dna_e3;1_000,
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |     dna_e6;1_000_000
[INFO] [stdout] 165 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> benches/dna.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 146 |                   let mut rng = SmallRng::from_seed(SEED);
[INFO] [stdout]     |                       ----^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 158 | / gen_bench! {
[INFO] [stdout] 159 | |     dna_e1;10,
[INFO] [stdout] 160 | |     dna_e2;100,
[INFO] [stdout] 161 | |     dna_e3;1_000,
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |     dna_e6;1_000_000
[INFO] [stdout] 165 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.37s
[INFO] running `Command { std: "docker" "inspect" "96b6cc4dcc5a78f93ef266243059ca3143d8bd6a58e5246bf580ee4674b0ff72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b6cc4dcc5a78f93ef266243059ca3143d8bd6a58e5246bf580ee4674b0ff72", kill_on_drop: false }`
[INFO] [stdout] 96b6cc4dcc5a78f93ef266243059ca3143d8bd6a58e5246bf580ee4674b0ff72