[INFO] cloning repository https://github.com/luojia65/sysevr-diff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luojia65/sysevr-diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsysevr-diff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsysevr-diff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c222fb345a3f925df223d19e47187556caf6d72
[INFO] testing luojia65/sysevr-diff 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%2Fluojia65%2Fsysevr-diff" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luojia65/sysevr-diff 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/luojia65/sysevr-diff
[INFO] finished tweaking git repo https://github.com/luojia65/sysevr-diff
[INFO] tweaked toml for git repo https://github.com/luojia65/sysevr-diff written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/luojia65/sysevr-diff 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 63451bff73250af37008533e44253f6c893be745412d3e6d92d83717539fa3ad
[INFO] running `Command { std: "docker" "start" "-a" "63451bff73250af37008533e44253f6c893be745412d3e6d92d83717539fa3ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63451bff73250af37008533e44253f6c893be745412d3e6d92d83717539fa3ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63451bff73250af37008533e44253f6c893be745412d3e6d92d83717539fa3ad", kill_on_drop: false }`
[INFO] [stdout] 63451bff73250af37008533e44253f6c893be745412d3e6d92d83717539fa3ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 8559ee76c86f34f2b99b7336a8e479aaff43cffb96ef4be2c934175423055a51
[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" "8559ee76c86f34f2b99b7336a8e479aaff43cffb96ef4be2c934175423055a51", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling sysevr-diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 for i in format::modify_value_assign(a) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/cv.rs:232:26
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub fn gen_modify_if<'a>(ctx: &'a ModifyIf) -> Vec<Cv<'a>> {
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_end` is never read
[INFO] [stdout]   --> src/format.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let mut line_end = line_start;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nxt_line`
[INFO] [stdout]   --> src/format.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let nxt_line = &input[line_start..next_line(input, line_start)];
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nxt_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `skip` is never read
[INFO] [stdout]    --> src/format.rs:274:13
[INFO] [stdout]     |
[INFO] [stdout] 274 |         let mut skip = 0;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cv.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut ret = Vec::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cv.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut ret = Vec::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_lines`
[INFO] [stdout]   --> src/format.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn add_lines(input: &str) -> impl Iterator<Item = &str> {
[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: `line_number`
[INFO] [stdout]   --> src/format.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn line_number(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.81s
[INFO] running `Command { std: "docker" "inspect" "8559ee76c86f34f2b99b7336a8e479aaff43cffb96ef4be2c934175423055a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8559ee76c86f34f2b99b7336a8e479aaff43cffb96ef4be2c934175423055a51", kill_on_drop: false }`
[INFO] [stdout] 8559ee76c86f34f2b99b7336a8e479aaff43cffb96ef4be2c934175423055a51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] a097d5cfcb9f51f7145bd7f508f2a8b826670214a1cdd40712938b1c96dce560
[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" "a097d5cfcb9f51f7145bd7f508f2a8b826670214a1cdd40712938b1c96dce560", kill_on_drop: false }`
[INFO] [stderr]    Compiling sysevr-diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 for i in format::modify_value_assign(a) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/cv.rs:232:26
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub fn gen_modify_if<'a>(ctx: &'a ModifyIf) -> Vec<Cv<'a>> {
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_end` is never read
[INFO] [stdout]   --> src/format.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let mut line_end = line_start;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nxt_line`
[INFO] [stdout]   --> src/format.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let nxt_line = &input[line_start..next_line(input, line_start)];
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nxt_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `skip` is never read
[INFO] [stdout]    --> src/format.rs:274:13
[INFO] [stdout]     |
[INFO] [stdout] 274 |         let mut skip = 0;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cv.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut ret = Vec::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cv.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut ret = Vec::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_lines`
[INFO] [stdout]   --> src/format.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn add_lines(input: &str) -> impl Iterator<Item = &str> {
[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: `line_number`
[INFO] [stdout]   --> src/format.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn line_number(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "a097d5cfcb9f51f7145bd7f508f2a8b826670214a1cdd40712938b1c96dce560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a097d5cfcb9f51f7145bd7f508f2a8b826670214a1cdd40712938b1c96dce560", kill_on_drop: false }`
[INFO] [stdout] a097d5cfcb9f51f7145bd7f508f2a8b826670214a1cdd40712938b1c96dce560
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 74d16eef6aab8d8f7b5f8d7d2ad73a7e1f36b4db4de6fcd2917d871af496e9cf
[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" "74d16eef6aab8d8f7b5f8d7d2ad73a7e1f36b4db4de6fcd2917d871af496e9cf", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:57:21
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 for i in format::modify_value_assign(a) {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]    --> src/cv.rs:232:26
[INFO] [stderr]     |
[INFO] [stderr] 232 | pub fn gen_modify_if<'a>(ctx: &'a ModifyIf) -> Vec<Cv<'a>> {
[INFO] [stderr]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `line_end` is never read
[INFO] [stderr]   --> src/format.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let mut line_end = line_start;
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nxt_line`
[INFO] [stderr]   --> src/format.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let nxt_line = &input[line_start..next_line(input, line_start)];
[INFO] [stderr]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nxt_line`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `skip` is never read
[INFO] [stderr]    --> src/format.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let mut skip = 0;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cv.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 |     let mut ret = Vec::new();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cv.rs:233:9
[INFO] [stderr]     |
[INFO] [stderr] 233 |     let mut ret = Vec::new();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_lines`
[INFO] [stderr]   --> src/format.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn add_lines(input: &str) -> impl Iterator<Item = &str> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `line_number`
[INFO] [stderr]   --> src/format.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn line_number(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parse::tests::code_slices_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sysevr_diff-21bb31df12ecc763
[INFO] running `Command { std: "docker" "inspect" "74d16eef6aab8d8f7b5f8d7d2ad73a7e1f36b4db4de6fcd2917d871af496e9cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d16eef6aab8d8f7b5f8d7d2ad73a7e1f36b4db4de6fcd2917d871af496e9cf", kill_on_drop: false }`
[INFO] [stdout] 74d16eef6aab8d8f7b5f8d7d2ad73a7e1f36b4db4de6fcd2917d871af496e9cf