[INFO] cloning repository https://github.com/wayfair-tremor/bob2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wayfair-tremor/bob2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayfair-tremor%2Fbob2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayfair-tremor%2Fbob2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d35ebe7a2d3419d5ac289d3b2560f511fed81400
[INFO] checking wayfair-tremor/bob2020 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayfair-tremor%2Fbob2020" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  35% (106/302)
Updating files:  36% (109/302)
Updating files:  37% (112/302)
Updating files:  37% (114/302)
Updating files:  38% (115/302)
Updating files:  39% (118/302)
Updating files:  40% (121/302)
Updating files:  41% (124/302)
Updating files:  42% (127/302)
Updating files:  43% (130/302)
Updating files:  44% (133/302)
Updating files:  45% (136/302)
Updating files:  46% (139/302)
Updating files:  47% (142/302)
Updating files:  48% (145/302)
Updating files:  49% (148/302)
Updating files:  50% (151/302)
Updating files:  51% (155/302)
Updating files:  52% (158/302)
Updating files:  53% (161/302)
Updating files:  54% (164/302)
Updating files:  55% (167/302)
Updating files:  56% (170/302)
Updating files:  57% (173/302)
Updating files:  58% (176/302)
Updating files:  59% (179/302)
Updating files:  60% (182/302)
Updating files:  61% (185/302)
Updating files:  62% (188/302)
Updating files:  62% (189/302)
Updating files:  63% (191/302)
Updating files:  64% (194/302)
Updating files:  65% (197/302)
Updating files:  66% (200/302)
Updating files:  67% (203/302)
Updating files:  68% (206/302)
Updating files:  69% (209/302)
Updating files:  70% (212/302)
Updating files:  71% (215/302)
Updating files:  72% (218/302)
Updating files:  73% (221/302)
Updating files:  74% (224/302)
Updating files:  75% (227/302)
Updating files:  76% (230/302)
Updating files:  77% (233/302)
Updating files:  78% (236/302)
Updating files:  79% (239/302)
Updating files:  80% (242/302)
Updating files:  81% (245/302)
Updating files:  82% (248/302)
Updating files:  83% (251/302)
Updating files:  84% (254/302)
Updating files:  85% (257/302)
Updating files:  86% (260/302)
Updating files:  87% (263/302)
Updating files:  88% (266/302)
Updating files:  89% (269/302)
Updating files:  90% (272/302)
Updating files:  91% (275/302)
Updating files:  92% (278/302)
Updating files:  93% (281/302)
Updating files:  94% (284/302)
Updating files:  95% (287/302)
Updating files:  96% (290/302)
Updating files:  97% (293/302)
Updating files:  98% (296/302)
Updating files:  99% (299/302)
Updating files: 100% (302/302)
Updating files: 100% (302/302), done.
[INFO] validating manifest of git repo https://github.com/wayfair-tremor/bob2020 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wayfair-tremor/bob2020
[INFO] finished tweaking git repo https://github.com/wayfair-tremor/bob2020
[INFO] tweaked toml for git repo https://github.com/wayfair-tremor/bob2020 written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/wayfair-tremor/bob2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 960599f81b657cf5b9874c1dd8ef7837304eb074bc86f6ab5b1351fa0390dbd2
[INFO] running `Command { std: "docker" "start" "-a" "960599f81b657cf5b9874c1dd8ef7837304eb074bc86f6ab5b1351fa0390dbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "960599f81b657cf5b9874c1dd8ef7837304eb074bc86f6ab5b1351fa0390dbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "960599f81b657cf5b9874c1dd8ef7837304eb074bc86f6ab5b1351fa0390dbd2", kill_on_drop: false }`
[INFO] [stdout] 960599f81b657cf5b9874c1dd8ef7837304eb074bc86f6ab5b1351fa0390dbd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5d203d62b94a552d1f6c8cf86469b50ce93372e880cccd561d7fdc870eca4b7
[INFO] running `Command { std: "docker" "start" "-a" "c5d203d62b94a552d1f6c8cf86469b50ce93372e880cccd561d7fdc870eca4b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.10
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]     Checking bob2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> benches/static_borrow.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> benches/static_borrow.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `text`
[INFO] [stdout]   --> benches/mpsc_bcast.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     text: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `text`
[INFO] [stdout]   --> benches/mpsc_bcast.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     text: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "c5d203d62b94a552d1f6c8cf86469b50ce93372e880cccd561d7fdc870eca4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d203d62b94a552d1f6c8cf86469b50ce93372e880cccd561d7fdc870eca4b7", kill_on_drop: false }`
[INFO] [stdout] c5d203d62b94a552d1f6c8cf86469b50ce93372e880cccd561d7fdc870eca4b7