[INFO] cloning repository https://github.com/clanehin/retriever
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clanehin/retriever" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclanehin%2Fretriever", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclanehin%2Fretriever'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fc9d9a97f1d9b8c55f490d377cc88b24f2c9de5
[INFO] checking clanehin/retriever against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclanehin%2Fretriever" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clanehin/retriever on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/clanehin/retriever
[INFO] finished tweaking git repo https://github.com/clanehin/retriever
[INFO] tweaked toml for git repo https://github.com/clanehin/retriever written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/clanehin/retriever already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ae2b96d756230d4b796c93d73e64301136e65df1194115cc6b5267eef0c81b3
[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" "6ae2b96d756230d4b796c93d73e64301136e65df1194115cc6b5267eef0c81b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ae2b96d756230d4b796c93d73e64301136e65df1194115cc6b5267eef0c81b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ae2b96d756230d4b796c93d73e64301136e65df1194115cc6b5267eef0c81b3", kill_on_drop: false }`
[INFO] [stdout] 6ae2b96d756230d4b796c93d73e64301136e65df1194115cc6b5267eef0c81b3
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] a28989bf3b241a2402210dc7b4d5800dff7bc96bb7f0e310355232e684b41e74
[INFO] running `Command { std: "docker" "start" "-a" "a28989bf3b241a2402210dc7b4d5800dff7bc96bb7f0e310355232e684b41e74", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking retriever v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/types/entry.rs:99:20
[INFO] [stdout]     |
[INFO] [stdout] 99  |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 100 | |                 "retriever: Entry::or_panic(): {:?} doesn't exist",
[INFO] [stdout] 101 | |                 &self.id
[INFO] [stdout] 102 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] [stderr]     Checking chrono v0.4.9
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking simple_logger v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/types/entry.rs:99:20
[INFO] [stdout]     |
[INFO] [stdout] 99  |               panic!(format!(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 100 | |                 "retriever: Entry::or_panic(): {:?} doesn't exist",
[INFO] [stdout] 101 | |                 &self.id
[INFO] [stdout] 102 | |             ))
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "a28989bf3b241a2402210dc7b4d5800dff7bc96bb7f0e310355232e684b41e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28989bf3b241a2402210dc7b4d5800dff7bc96bb7f0e310355232e684b41e74", kill_on_drop: false }`
[INFO] [stdout] a28989bf3b241a2402210dc7b4d5800dff7bc96bb7f0e310355232e684b41e74