[INFO] cloning repository https://github.com/nicofff/topsort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicofff/topsort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicofff%2Ftopsort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicofff%2Ftopsort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f498230bd9b4e178a698d8a5e0458e32140ac468
[INFO] testing nicofff/topsort against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicofff%2Ftopsort" "/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/nicofff/topsort on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nicofff/topsort
[INFO] finished tweaking git repo https://github.com/nicofff/topsort
[INFO] tweaked toml for git repo https://github.com/nicofff/topsort written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nicofff/topsort already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.51
[INFO] [stderr]   Downloaded libc v0.2.50
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded csv-core v0.1.5
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded serde v1.0.89
[INFO] [stderr]   Downloaded csv v1.0.5
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fd11c4c6e211138d008f0e7063ee4ceb1566dd262712b01013ed133bccb398e
[INFO] running `Command { std: "docker" "start" "-a" "6fd11c4c6e211138d008f0e7063ee4ceb1566dd262712b01013ed133bccb398e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fd11c4c6e211138d008f0e7063ee4ceb1566dd262712b01013ed133bccb398e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd11c4c6e211138d008f0e7063ee4ceb1566dd262712b01013ed133bccb398e", kill_on_drop: false }`
[INFO] [stdout] 6fd11c4c6e211138d008f0e7063ee4ceb1566dd262712b01013ed133bccb398e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e91ddbbd4685b876c0d926c9826d41b963bdc854f9316a25de7a341889ec0492
[INFO] running `Command { std: "docker" "start" "-a" "e91ddbbd4685b876c0d926c9826d41b963bdc854f9316a25de7a341889ec0492", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling topsort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/topsort/multi_btreemap.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get(&self, k: &K) -> Option<&Vec<String>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]   --> src/topsort/multi_btreemap.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn get_mut(&mut self, k: &K) -> Option<&mut Vec<String>> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.18s
[INFO] running `Command { std: "docker" "inspect" "e91ddbbd4685b876c0d926c9826d41b963bdc854f9316a25de7a341889ec0492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e91ddbbd4685b876c0d926c9826d41b963bdc854f9316a25de7a341889ec0492", kill_on_drop: false }`
[INFO] [stdout] e91ddbbd4685b876c0d926c9826d41b963bdc854f9316a25de7a341889ec0492
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a9f1ab50bb679476052cd8f485f8081a7876a7cdd2a866c37c99db579c70104
[INFO] running `Command { std: "docker" "start" "-a" "7a9f1ab50bb679476052cd8f485f8081a7876a7cdd2a866c37c99db579c70104", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling topsort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/topsort/multi_btreemap.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get(&self, k: &K) -> Option<&Vec<String>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]   --> src/topsort/multi_btreemap.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn get_mut(&mut self, k: &K) -> Option<&mut Vec<String>> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "7a9f1ab50bb679476052cd8f485f8081a7876a7cdd2a866c37c99db579c70104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a9f1ab50bb679476052cd8f485f8081a7876a7cdd2a866c37c99db579c70104", kill_on_drop: false }`
[INFO] [stdout] 7a9f1ab50bb679476052cd8f485f8081a7876a7cdd2a866c37c99db579c70104
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec2f5d8865f5ed8e0dcfd2859e3f92994231a93f9c5bc3e264d1611c58088d83
[INFO] running `Command { std: "docker" "start" "-a" "ec2f5d8865f5ed8e0dcfd2859e3f92994231a93f9c5bc3e264d1611c58088d83", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]   --> src/topsort/multi_btreemap.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn get(&self, k: &K) -> Option<&Vec<String>> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_mut`
[INFO] [stderr]   --> src/topsort/multi_btreemap.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn get_mut(&mut self, k: &K) -> Option<&mut Vec<String>> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `topsort` (bin "topsort" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/topsort-b1caf5b954207e3d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec2f5d8865f5ed8e0dcfd2859e3f92994231a93f9c5bc3e264d1611c58088d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec2f5d8865f5ed8e0dcfd2859e3f92994231a93f9c5bc3e264d1611c58088d83", kill_on_drop: false }`
[INFO] [stdout] ec2f5d8865f5ed8e0dcfd2859e3f92994231a93f9c5bc3e264d1611c58088d83