[INFO] cloning repository https://github.com/mdsherry/ministat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdsherry/ministat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdsherry%2Fministat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdsherry%2Fministat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8900b6f6c5a407a9e7f045c2faa830a3c61b382
[INFO] testing mdsherry/ministat against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdsherry%2Fministat" "/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/mdsherry/ministat on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mdsherry/ministat
[INFO] finished tweaking git repo https://github.com/mdsherry/ministat
[INFO] tweaked toml for git repo https://github.com/mdsherry/ministat written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mdsherry/ministat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63a95a02e8384db0ff3af28ad35d05fffc60f84b19f217dfd3901b01952301b3
[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" "63a95a02e8384db0ff3af28ad35d05fffc60f84b19f217dfd3901b01952301b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63a95a02e8384db0ff3af28ad35d05fffc60f84b19f217dfd3901b01952301b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a95a02e8384db0ff3af28ad35d05fffc60f84b19f217dfd3901b01952301b3", kill_on_drop: false }`
[INFO] [stdout] 63a95a02e8384db0ff3af28ad35d05fffc60f84b19f217dfd3901b01952301b3
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce9762acca7381d1db3d330fba7968fca80b26e1470fc7dd556d238402b67610
[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" "ce9762acca7381d1db3d330fba7968fca80b26e1470fc7dd556d238402b67610", kill_on_drop: false }`
[INFO] [stderr]    Compiling noisy_float v0.1.4
[INFO] [stderr]    Compiling kahan v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]    Compiling structopt v0.1.6
[INFO] [stderr]    Compiling terminal_size v0.1.7
[INFO] [stderr]    Compiling backtrace v0.3.4
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling ministat v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BufReader` is imported redundantly
[INFO] [stdout]   --> src/data.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::io::{BufReader, BufRead};
[INFO] [stdout]    |               --------- the item `BufReader` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 53 |     use std::io::BufReader;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/stats.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |         |x| format!("{:13.6}", x).trim_right_matches('0').trim_right_matches('.').to_string();
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/stats.rs:72:59
[INFO] [stdout]    |
[INFO] [stdout] 72 |         |x| format!("{:13.6}", x).trim_right_matches('0').trim_right_matches('.').to_string();
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.07s
[INFO] running `Command { std: "docker" "inspect" "ce9762acca7381d1db3d330fba7968fca80b26e1470fc7dd556d238402b67610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce9762acca7381d1db3d330fba7968fca80b26e1470fc7dd556d238402b67610", kill_on_drop: false }`
[INFO] [stdout] ce9762acca7381d1db3d330fba7968fca80b26e1470fc7dd556d238402b67610
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a79971cc8284948c91b2735e117b9a2f025ef775705da5bcef01ed33146a4a4a
[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" "a79971cc8284948c91b2735e117b9a2f025ef775705da5bcef01ed33146a4a4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ministat v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BufReader` is imported redundantly
[INFO] [stdout]   --> src/data.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::io::{BufReader, BufRead};
[INFO] [stdout]    |               --------- the item `BufReader` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 53 |     use std::io::BufReader;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/stats.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |         |x| format!("{:13.6}", x).trim_right_matches('0').trim_right_matches('.').to_string();
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/stats.rs:72:59
[INFO] [stdout]    |
[INFO] [stdout] 72 |         |x| format!("{:13.6}", x).trim_right_matches('0').trim_right_matches('.').to_string();
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "a79971cc8284948c91b2735e117b9a2f025ef775705da5bcef01ed33146a4a4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79971cc8284948c91b2735e117b9a2f025ef775705da5bcef01ed33146a4a4a", kill_on_drop: false }`
[INFO] [stdout] a79971cc8284948c91b2735e117b9a2f025ef775705da5bcef01ed33146a4a4a
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2ce38ccb0fe8791e71a5687c4f965df92bd1b70c783c9bddd49187c04b31cc3
[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" "b2ce38ccb0fe8791e71a5687c4f965df92bd1b70c783c9bddd49187c04b31cc3", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: the item `BufReader` is imported redundantly
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/data.rs:53:9
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 2  | use std::io::{BufReader, BufRead};
[INFO] [stdout] 
[INFO] [stderr]    |               --------- the item `BufReader` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 53 |     use std::io::BufReader;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]   --> src/stats.rs:72:35
[INFO] [stderr]    |
[INFO] [stderr] 72 |         |x| format!("{:13.6}", x).trim_right_matches('0').trim_right_matches('.').to_string();
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]   --> src/stats.rs:72:59
[INFO] [stderr]    |
[INFO] [stderr] 72 |         |x| format!("{:13.6}", x).trim_right_matches('0').trim_right_matches('.').to_string();
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ministat-5d3fba01c5373330
[INFO] running `Command { std: "docker" "inspect" "b2ce38ccb0fe8791e71a5687c4f965df92bd1b70c783c9bddd49187c04b31cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ce38ccb0fe8791e71a5687c4f965df92bd1b70c783c9bddd49187c04b31cc3", kill_on_drop: false }`
[INFO] [stdout] b2ce38ccb0fe8791e71a5687c4f965df92bd1b70c783c9bddd49187c04b31cc3